전극 조립체, 이의 제조 장치, 및 이의 제조 방법

... 본 발명의 일 실시예에 따른 전극 조립체 제조 장치는, 복수의 제1 전극이 형성되는 제1 전극 시트가 제공되는 제1 전극 공급 유닛; 복수의 제2 전극이 형성되는 제2 전극 시트가 제공되는 제2 전극 공급 유닛; 상기 제1 전극 또는 상기 제2 전극이 안착하면 폴딩되어, 상기 전극을 커버하며 상기 전극과 적층되는 분리막 시트가 제공되는 분리막 공급 유닛; 상기 전극 조립체를 형성하기 위해, 상기 제1 전극과 상기 제2 전극 사이에 폴딩되는 상기 분리막 시트를 갖도록 상기 제1 전극 및 상기 제2 전극을 상면에 안착하는 테이블; 상기 분리막 시트의 폴딩 방향을 가이드하는 분리막 가이드; 및 상기 테이블과 상기 분리막 가이드 사이에 위치하는 상기 분리막 시트의 적어도 일부에 접착제를 도포하는 한 쌍의 상부 도포기를 포함하고, 상기 테이블은 상기 제1 전극 공급 유닛과 상기 제2 전극 공급 유닛 사이에서 회전 왕복 운동하고, 상기 분리막 가이드 및 상기 한 쌍의 상부 도포기는 상기 테이블을 기준으로 좌우로 직선 왕복 운동한다.

METHOD FOR MANUFACTURING POCKETED POSITIVE ELECTRODE PLATE, POCKETED POSITIVE ELECTRODE PLATE, AND ELECTRODE ASSEMBLY INCLUDING POCKETED POSITIVE ELECTRODE PLATE

A method for manufacturing a pocketed positive electrode plate according to an embodiment of the present invention comprises the steps of: forming or applying a positive electrode active material on the surface of a positive electrode current collector; punching or cutting the positive electrode current collector to form a positive electrode having the same shape; preparing a separator; positioning an insulating member on one surface of the separator; arranging the positive electrode in a positive electrode receiving portion of the insulating member; folding the separator in a state in which the positive electrode is arranged in the positive electrode receiving portion, and attaching the separator to the insulating member; and cutting the insulating member and the separator to form a pocketed positive electrode plate.

SECONDARY BATTERY AND TERMINAL

Provided is a secondary battery, comprising at least one battery cell assembly, which comprises a positive electrode plate, a negative electrode plate, and a diaphragm arranged between the positive electrode plate and the negative electrode plate, both of which comprise a current collector and an active material layer arranged on the current collector, wherein the diaphragm has an elongation greater than 100%; the elongation of the diaphragm includes the elongation in the length direction and/or the elongation in the width direction; the ratio of the elongation of the diaphragm to the thickness of the active material layer of the positive electrode plate and/or the negative electrode plate is 3.0%/μm to 8.0%/μm; and the ratio of the elongation of the diaphragm to the elongation of the current collector of the positive electrode plate and/or the negative electrode plate is greater than or equal to 60. According to the embodiments of the present application, the secondary battery has a high ...

BATTERY CELL COMPRISING SPECIAL POROUS SOLID ELECTROLYTE FOAMS

The present invention relates to a battery cell (1) comprising at least one positive electrode (2), at least one negative electrode (3) and at least one separator (4), the negative electrode (2) comprising: - a porous solid electrolyte polymer foam (5) for the positive electrode, the foam (5) for the positive electrode comprising at least one lithium salt, and - a material (6) for the positive electrode, which material is located in the pores (7) of the foam (5) for the positive electrode, the negative electrode (3) comprising: - a porous solid electrolyte polymer foam (8) for the negative electrode, the foam (8) for the negative electrode comprising at least one lithium salt, and - a material (9) for the negative electrode, which material is located in the pores (10) of the foam (8) for the negative electrode.

BATTERY MODULE, USAGE METHOD FOR BATTERY MODULE, AND MANUFACTURING METHOD FOR BATTERY CELL

In the present invention, positive electrodes (110) are first electrodes, and negative electrodes (120) are second electrodes having a greater area than the first electrodes. A separator (130) extends while folding back between the positive electrodes (110) and the negative electrodes (120) that are adjacent to each other. In all of a plurality of battery cells (10), the fold-back sections of the separator (130) cover a section on the same side of each of the negative electrodes (120). Specifically, in all of the plurality of battery cells (10), the fold-back sections of the separator (130) cover top sections of the negative electrodes (120).

Battery

A battery includes a first electrode layer; and a second electrode layer disposed on the first electrode layer and serving as a counter electrode for the first electrode layer, wherein the first electrode layer includes a first current collector, a first active material layer, and a first solid electrolyte layer, the first active material layer is disposed to be in contact with the first current collector and to occupy a smaller area than the first current collector, the first solid electrolyte layer is disposed to be in contact with the first current collector and the first active material layer and to occupy the same area as the first current collector, the first active material layer faces the second electrode layer with the first solid electrolyte layer therebetween, and the first electrode layer includes a peripheral portion including a first rounded portion.

Lithium cell having a glassy carbon layer

A separator for a lithium secondary cell is provided. The separator has a separator substrate, selected from porous separators for liquid-electrolyte cells and solid-electrolyte separators having lithium ion conductivity, and has a layer of glassy carbon (GC), which is applied at least on one side of the separator substrate. A lithium secondary cell is also provided, which contains a negative electrode, a positive electrode, and a separator placed between the negative electrode and the positive electrode. The glassy carbon layer of the separator faces the negative electrode.

Energy storage device and method for manufacturing same

One aspect of the present invention is an energy storage device that includes an electrode assembly including a positive electrode, a heat resistance layer, a separator, and a negative electrode layered in this order, a peeling strength between the positive electrode and the heat resistance layer being larger than a peeling strength between the heat resistance layer and the separator, and the peeling strength between the heat resistance layer and the separator being larger than a peeling strength between the separator and the negative electrode.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY

The positive electrode active material is capable of reducing positive electrode resistance, exhibiting better output characteristics, and having high mechanical strength when the positive electrode active material is used in a lithium ion secondary battery. Secondary particles have a d50 of 3.0 to 7.0 μm, a BET specific surface area of 2.0 to 5.0 m2/g, a tap density of 1.0 to 2.0 g/cm3, and an oil absorption amount of 30 to 60 ml/100 g. In each of a plurality of primary particles having a primary particle size of 0.1 to 1.0 μm, a coefficient of variation of the concentration of an additive element M is 1.5 or less. The volume of a linking section between the primary particles per primary particle, obtained from the total volume of the linking section and the number of primary particles constituting the secondary particles, is 5×105to 9×107nm3.

Nonaqueous electrolyte secondary battery

A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode, wherein the separator includes an inorganic filler layer which includes a first filler layer containing phosphate salt particles and a second filler layer disposed on the first filler layer and containing inorganic particles more heat resistant than the phosphate salt particles, and the BET specific surface area of the phosphate salt particles is in the range of not less than 5 m2/g and not more than 100 m2/g.

ELECTROCHEMICAL DEVICE

An electrochemical device which includes an electrode plate and a porous layer formed on a surface of the electrode plate. The porous layer includes nanofibers and inorganic particles. The nanofibers and the inorganic particles are bonded together by a crosslinker. In addition, an electronic device, which includes this electrochemical device.

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY PACK, AND VEHICLE

An electrode assembly includes a first electrode, a separation membrane, and a second electrode are stacked and wound, in which at least one of the first electrode and the second electrode includes a current collector and an electrode active material layer provided on the current collector, and the first electrode includes a fixing part which is provided on the electrode active material layer, provided to an edge portion closest to a winding center of the electrode assembly, and is fixed to the separation membrane. Further, a battery cell includes the electrode assembly; a battery can which accommodates the electrode assembly and has an opening at one side; an electrode terminal riveted through a through-hole formed in a bottom of the battery can; a gasket provided between the electrode terminal and an outer diameter of the through-hole; and a sealing body sealing the opening of the battery can.

COMPOSITION FOR NONAQUEOUS SECONDARY BATTERY FUNCTIONAL LAYER, FUNCTIONAL LAYER FOR NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY

METHOD OF PRINTING AND ARTICLES

ELECTRODE ASSEMBLY FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to an electrode assembly for a lithium secondary battery, and a lithium secondary battery comprising same, the electrode assembly comprising a current collector, an anode comprising an anode active material layer located on the current collector and a functional layer integrated with the anode active material layer; and a cathode, wherein the functional layer includes at least one inorganic layer and the peel strength of the functional layer is 0.2 N/m or greater.

SECONDARY BATTERY, BATTERY PACK, VEHICLE, AND STATIONARY POWER SUPPLY

According to one approach, provided is a secondary battery including a negative electrode, a positive electrode, a first composite layer joined to the negative electrode, a second composite layer joined to the positive electrode, and an aqueous electrolyte. The first composite layer includes a first principal surface on a reverse side with respect to a surface joined to the negative electrode. The second composite layer includes a second principal surface on a reverse side with respect to a surface joined to the positive electrode and facing the first principal surface. Each of the first composite layer and the second composite layer contains inorganic solid particles and a polymeric material. A peel strength σs between the first principal surface and second principal surface is 0.1 N/mm or less. The aqueous electrolyte includes water.

Preparation method of composite current collection isolation layer

The invention provides a preparation method of a composite current collection isolation layer. In the preparation method, a porous electrode current collector is placed on a plurality of stainless steel wires, an arch-shaped part is formed on the porous electrode current collector by utilizing heating and pressurizing treatment, and the section of the arch-shaped part is in an arch shape with one concave surface and one convex surface. The porous electrode current collector and the diaphragm are compounded into a whole, the flow channel for the electrolyte is formed between the concave part of the arch-shaped part of the porous electrode current collector and the diaphragm, the electrolyte can quickly enter the electrode slice through the flow channel, and the electrolyte in the flow channel is injected into the electrode material layer through the through holes of the porous electrode current collector. Therefore, the electrode material layer in the electrode plate can be rapidly infiltrated ...

전류 콜렉터 베이스 상에 세퍼레이터 물질을 갖는 전기 배터리 제조 방법

... 본 발명은, 전류 콜렉터 호일을 제공하는 단계; 및 전류 콜렉터 호일 상에 서로 이격된 간격으로 세퍼레이터들을 배치하는 단계를 포함하는 배터리 셀 컴포넌트를 제조하기 위한 방법을 제공한다. 배터리 셀 컴포넌트, 배터리 및 전기 자동차 또는 하이브리드 자동차 또한 제공된다.

SEPARATOR FOR LEAD ACID STORAGE BATTERIES, AND LEAD ACID STORAGE BATTERY

The present invention provides a method for producing a separator for lead acid storage batteries, said method comprising a surface layer formation step which includes: a coating liquid preparation step wherein a coating liquid that contains a solvent, a conductive material and a high-molecular-weight compound is prepared; a coating step wherein the coating liquid obtained in the coating liquid preparation step is applied to at least one surface of a separator base material; and a solvent removal step wherein the solvent is removed from the coating liquid that has been applied to the separator base material in the coating step. With respect to this method for producing a separator for lead acid storage batteries, the high-molecular-weight compound is contained in an amount of from 0.1% by mass to 25% by mass relative to the solid content of the coating liquid.

SEPARATOR, ELECTROCHEMICAL DEVICE COMPRISING SAME, AND ELECTRONIC DEVICE

The present application provides a separator, an electrochemical device comprising same, and an electronic device. The separator comprises a separator substrate, a positive electrode membrane, a negative electrode membrane, and an insulation layer; wherein the positive electrode membrane and the negative electrode membrane are respectively located on two surfaces of the separator substrate; the insulation layer is provided on the separator substrate; the insulation layer is provided on the periphery of the positive electrode membrane; and an area surrounded by an orthographic projection of the outer edge of the insulation layer on the separator substrate covers an orthographic projection of the negative electrode membrane on the separator substrate. The present application can improve the self-discharge performance and safety of the electrochemical device.

Method for manufacturing separator-integrated electrode, and separator-integrated electrode

The method of the present disclosure includes: preparing a solution containing a water-soluble polymer dissolved in a mixed solvent containing water admixed with a first solvent having a higher boiling point than that of the water; applying the solution in a film form to a surface of an electrode to form a coating made of the solution on the surface of the electrode; and removing the mixed solvent from the coating by vaporization such that a porous separator layer made of the water-soluble polymer is formed on the surface of the electrode while a plurality of pores are formed in an inside of the coating due to removal of the first solvent. The solubility of the water-soluble polymer in the first solvent is lower than that of the water-soluble polymer in the water.

Wound electrode assembly

The embodiments of the present application provides a wound electrode assembly formed by winding a first electrode sheet, a second electrode sheet, and an isolating membrane disposed therebetween. The wound electrode assembly includes: a first surface having a first protrusion in the thickness direction of the wound electrode assembly; a first wound electrode assembly; a second wound electrode assembly wrapping the first wound electrode assembly, the first wound electrode assembly and the second wound electrode assembly sharing the first electrode sheet and the second electrode sheet; an adhesive layer disposed between the first electrode sheet and the isolating membrane, and/or between the second electrode sheet and the isolating membrane. The purpose of the present application is at least to provide a wound electrode assembly capable of reducing the risk of misalignment of the internal structures of the electrode assembly during the falling, and retaining the shape of the electrode assembly ...

THREE-DIMENSIONAL BATTERIES USING CONSTRAINT ADHESIVE

An electrode assembly for a secondary battery and method are provided. The electrode assembly comprises a population of unit cells and a constraint system. The electrode assembly comprises a population of electrode structures, a population of counter-electrode structures, and an electrically insulating separator material. The constraint system comprises (i) first and second primary growth constraints separated in the longitudinal direction, (ii) first and second connecting members separated in the vertical direction that connect the first and second primary growth constraints and a subset of the members of the electrode or counter-electrode population. The first and second connecting members are adhered to the subset by an electrically-insulating, thermoplastic, hot-melt adhesive having (i) a melting temperature in the range of 75° C. to 130° C., and (ii) a melt index value as measured according to ASTM D1238 in a range of at least 20 to no more than 350.

Secondary batteries

A secondary battery includes an electrode assembly including a positive electrode, a negative electrode, a first separator disposed on one side of the surface of the negative electrode and having a thickness T1, and a second separator disposed on the other side of the surface of the negative electrode and having a thickness T2. The thickness T2 of the second separator is larger than the thickness T1 of the first separator. The first separator includes a first porous film having a porosity P1, and the second separator includes a second porous film having a porosity P2. At least one of the first separator and the second separator includes a heat resistant layer. The positive electrode, the first separator, the negative electrode and the second separator are wound together such that the first separator is arranged on the outer side and the second separator is arranged on the inner side.

WOUND ELECTRODE ASSEMBLY, BATTERY, AND MANUFACTURING METHOD OF WOUND ELECTRODE ASSEMBLY

The disclosed flat-shaped wound electrode assembly includes a negative electrode, a positive electrode, a first separator, and a second separator. They are stacked one on another to arrange the first separator between the negative electrode and the positive electrode, and to arrange the second separator on the outermost surface of the wound electrode assembly. The resultant is wound around a winding axis in a longitudinal direction. On each of both main surfaces of the first separator and both main surfaces of the second separator, an adhesion layer is located in stripe patterns. When viewed from a flat side surface of the wound electrode assembly, in a predetermined direction, an angle of the adhesion layer of the first separator with respective to the winding axis on the main surface and an angle of the adhesion layer of the second separator with respect to the winding axis are different from each other.

ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

An embodiment electrolyte solution includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes an electrode film additive of 2-(dodec-1-en-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane represented by An embodiment lithium secondary battery includes this electrolyte solution, a positive electrode including a positive-electrode active material including Ni, Co, and Mn, a negative electrode including a negative-electrode active material including a carbon (C)-based material or a silicon (Si)-based material, and a separator interposed between the positive electrode and the negative electrode.

METHOD FOR EVALUATING ADHESION OF SEPARATOR

A method for evaluating an adhesive strength of a separator is provided in the present application.

Secondary battery and electric device thereof

The invention relates to the technical field of pole pieces of secondary batteries, in particular to a secondary battery and an electric device thereof. The bonding layer with a conductive effect is arranged between the second active material layer of the last fold at the tail end of the pole piece of the secondary battery and the diaphragm, and the bonding layer can be effectively fused when the secondary battery is formed, so that the bonding between the weak area of the last fold of the winding type secondary battery and the diaphragm is enhanced, the bonding effect of an interface is enhanced, and the service life of the winding type secondary battery is prolonged. The cycle performance of the battery cell is effectively improved; and the diaphragm is prevented from being folded during falling. Meanwhile, the lithium ion transmission capability of the added bonding layer to the pole piece in the circulation process is equivalent to the lithium ion transmission level of other areas of ...

LOW RESISTANCE COMPOSITE SILICON-BASED ELECTRODE

A silicon-based electrode forms an interface with a layer pair being: 1. a thin, semi-dielectric layer made of a lithium (Li) compound, e.g. lithium fluoride, LiF, disposed on and adheres to the electrode surface of the silicon-based electrode and 2. an molten-ion conductive layer of a lithium containing salt (lithium salt layer) disposed on the semidielectric layer. One or more device layers can be disposed on the layer pair to make devices such as energy storage devices, like batteries. The interface has a low resistivity that reduces the energy losses and generated heat of the devices.

Method and device for producing electrode body

There is provided a method for producing an electrode body including a current collection foil, an electrode mixture layer, a heat resistant layer, and a separator layer are laminated in this order. The method includes applying a liquid heat resistant material forming the heat resistant layer to the electrode mixture layer on an electrode plate that is obtained by forming an electrode mixture layer on the current collection foil and disposing the porous separator layer on the liquid heat resistant material before the liquid heat resistant material according to the application is dried after applying the liquid heat resistant material.

Electrode assembly, method of manufacturing the same and secondary battery including the same

The present invention provides an electrode assembly, which includes a first electrode, an adhesive layer disposed on the first electrode and including a host layer comprising a host and a guest layer comprising a guest, a separator disposed on the adhesive layer, and a second electrode disposed on the separator, a method of manufacturing the same, and a secondary battery including the same.

Enhanced solid state battery cell

An enhanced solid state battery cell is disclosed. The battery cell can include a first electrode, a second electrode, and a solid state electrolyte layer interposed between the first electrode and the second electrode. The battery cell can further include a resistive layer interposed between the first electrode and the second electrode. The resistive layer can be electrically conductive in order to regulate an internal current flow within the battery cell. The internal current flow can result from an internal short circuit formed between the first electrode and the second electrode. The internal short circuit can be formed from the solid state electrolyte layer being penetrated by metal dendrites formed at the first electrode and/or the second electrode.

METHODS AND SYSTEM FOR MANUFACTURING A REDOX FLOW BATTERY SYSTEM BY ROLL-TO-ROLL PROCESSING

Methods and systems are provided for manufacturing a bipolar plate for a redox flow battery. In one example, the bipolar plate is fabricated by a roll-to-roll process. The bipolar plate includes a non-conductive substrate that is coupled to a negative electrode on a first surface and coupled to a positive electrode on a second surface, the first surface opposite of the second surface.

ELECTRODE BODY FOR SECONDARY BATTERIES

This electrode body for secondary batteries comprises: a positive electrode; a negative electrode; an outer separator; and an inner separator which is arranged inside the outer separator. An outer electrode, which is either the positive electrode or the negative electrode arranged on the outer side, is sandwiched by the outer separator and the inner separator. The outer separator and the inner separator have: two electrode facing parts that face the outermost layers of the outer electrode, while overlapping with each other, with the outer electrode being interposed therebetween; and a terminal overlapping part that is provided at respective ends of the outer separator and the inner separator. The thickness of the front end of the terminal overlapping part is larger than the sum of the thicknesses of the two electrode facing parts.

METHOD AND APPARATUS FOR FABRICATING AN ELECTRODE FOR A BATTERY

A battery electrode, and a method for fabricating the battery electrode are described. The battery electrode includes a lithium foil that is arranged between a first porous current collector and a second porous current collector. The first and second porous current collectors each defines a multiplicity of interstitial spaces, and the lithium foil is embedded in the interstitial spaces defined by the first porous current collector and in the interstitial spaces defined by the second porous current collector, thus enabling two-side functionality.

Long width secondary battery

In the present invention, not only a movement path of a current generated from a first electrode assembly, but also a movement path of a current generated from a second electrode assembly are provided by a cathode conductive member, and not only a movement path of the current generated from the second electrode assembly, but also a movement path of the current generated from the first electrode assembly are provided by an anode conductive member, such that cross sectional areas of the correct movement paths are increased. Therefore, a resistance of the long width secondary battery may be reduced.

BATTERY

Provided is a technique that can obtain a wound electrode body simply and conveniently. One aspect of a battery herein disclosed is provided with a wound electrode body in which a positive electrode and a negative electrode are wound around in a predetermined winding direction around a winding axis via a separator. The battery includes a first separator and a second separator as the separator; the second separator includes a region positioned outward from an winding terminal edge of the first separator; the second separator includes an extending portion extending beyond a winding terminal edge of the first separator in the winding direction; a second adhesive is existed at least on a part of an inner surface of the extending portion; and the extending portion and a region positioned inward from the extending portion in the second separator are bonded via the second adhesive layer.

ELECTROCHEMICAL CELL INCLUDING A FOLDED ELECTRODE, COMPONENTS THEREOF, BATTERY INCLUDING THE ELECTROCHEMICAL CELL, AND METHOD OF FORMING SAME

Сепараторная группа непроточного металл-бромного аккумулятора и способ ее изготовления

Изобретение относится к структуре и методу изготовления сепаратора непроточного аккумулятора с бромным катодом и металлическим анодом фильтр-прессной конструкции. Техническим результатом является снижение внутреннего сопротивления сепараторной группы при существенном торможении скорости переноса брома на моменте заряда. Технический результат достигается предложенной сепараторной группой металл-бромного непроточного аккумулятора, который содержит металлический анод, пористый углеродный катод и сепаратор. При этом сепаратор состоит из, по меньшей мере, одного первого слоя сепараторной группы, представляющего собой малопористую катионообменную мембрану с величиной пористости, составляющей 10-15 %, и, по меньшей мере, одного второго слоя сепараторной группы, представляющего собой пористый непроводящий материал, являющийся резервуаром электролита. Сепараторная группа располагается малопористой мембраной в сторону пористого углеродного катода, а толщина второго слоя сепараторной группы выбирается ...

Petaloid laminated battery cell, preparation method thereof and battery comprising battery cell

The invention relates to the technical field of lithium ion batteries, in particular to a petal-shaped laminated battery cell. The petal-shaped laminated battery cell comprises a battery cell body, the battery cell body comprises a plurality of battery cell units, and the plurality of battery cell units are stacked around the same axis in the circumferential direction to form a longitudinally arranged petal shape; each battery cell unit comprises a positive plate and a negative plate arranged on one side of the positive plate; the outer surface of the positive plate is coated with a diaphragm; and the shape of a battery cell body formed by stacking the battery cell units around the same axis along the circumferential direction is any one of a spherical table shape, a circular table shape and a conical shape. The petal-shaped laminated battery cell provided by the invention is matched with a battery shell of a special-shaped battery in shape, and the space utilization rate in the special-shaped ...

METHOD FOR PRODUCING BATTERY, AND BATTERY

This method for producing a battery 36 comprises a process wherein: a separator 2 having an adhesive layer 8 and an electrode plate 4 are stacked upon each other in such a manner that the electrode plate 4 is in contact with the adhesive layer 8; a multilayer electrode body 1 is formed by bonding a part of the electrode plate 4 to the adhesive layer 8 so that the electrode plate 4 has a bonded region 42, which is bonded with the adhesive layer 8, and a non-bonded region 44; the multilayer electrode body 1 is contained in a case 32; and an electrolyte solution 34 is injected into the case 32.

MEMBRANE ELECTRODE ASSEMBLIES FOR ION CONCENTRATION GRADIENT DEVICES

A device for enabling controlled movement of ions between a first ion-containing fluid and second ion-containing fluid comprises at least one cationic exchange membrane positioned between the first and second ion-containing fluids, and at least one anionic exchange membrane in parallel with the at least one cationic exchange membrane positioned between the first and second ion-containing fluids. The one or more of the at least one cationic exchange membrane and the at least one anionic exchange membrane is a membrane electrode assembly comprising an ion exchange membrane, and one or more permeable electrodes embedded within the ionic exchange membrane. The number of cationic exchange membranes and the number of anionic exchange membranes is the same, and the ions move through the membrane electrode assembly in response to a variable capacitive charge.

METHODS OF PRODUCING BATTERIES UTILIZING ANODE COATINGS DIRECTLY ON NANOPOROUS SEPARATORS

Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer.

Secondary Battery and Method of Manufacturing Same

A secondary battery includes: an electrode plate including a main body portion and an electrode terminal portion protruding from the main body portion along a first direction; and a separator adhered to the electrode plate, wherein the main body portion of the electrode plate includes a central region located in a vicinity of a center in the first direction, a first region located on a side close to the electrode terminal portion with respect to the central region in the first direction, and a second region located on a side opposite to the first region with respect to the central region in the first direction, and adhesion strength per unit area between the electrode plate and the separator in the first region is higher than adhesion strength per unit area between the electrode plate and the separator in the second region.

BATTERY CELL STRUCTURE OF BUTTON BATTERY AND MUNUFACTUTURN MERHOD THEREOF, AND BUTTON BATTERY

The present disclosure provides a battery cell structure of a button battery and a manufacturing method thereof, and a button battery, where the battery cell structure of the button battery includes a winding core which is formed by winding a laminated structure and is provided with a hollow inner hole, the laminated structure includes at least one positive electrode sheet, at least one negative plate, and a separator which separates the at least one positive electrode sheet from the at least one negative electrode sheet, at least two ends of the winding core are provided with a separator bonding layer wrapping the winding core, and the separator bonding layer is used for fixing the positive electrode sheet and the negative electrode sheet.

INGREDIENT FOR SECONDARY CELL SEPARATOR COATING MATERIAL, SECONDARY CELL SEPARATOR COATING MATERIAL, SECONDARY CELL SEPARATOR, METHOD FOR PRODUCING SECONDARY CELL SEPARATOR, AND SECONDARY CELL

In an ingredient for a secondary cell separator coating material including a core shell particle including a core layer containing a first polymer and a shell layer covering the first polymer and including a second polymer, the first polymer has a repeating unit derived from alkyl (meth)acrylate; the second polymer has a repeating unit derived from (meth)acrylamide of 40 to 97% by mass, and a repeating unit derived from a carboxy group-containing vinyl monomer of 3 to 60% by mass; and a ratio of the second polymer to the first polymer is 4 to 250.

SEPARATOR FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

A separator for a lithium secondary battery and a method for manufacturing the same. Particularly, the separator is obtained through immersed phase separation, the content of inorganic particles is controlled to a predetermined level, and a fluorine-based binder polymer is used in combination with a polyvinyl acetate polymer, and thus shows improved heat shrinkage and enhanced adhesion to an electrode.

RECHARGEABLE BATTERIES AND METHODS OF MAKING SAME

Systems and methods for rechargeable batteries are provided. In an embodiment, a battery may include a cathode, an anode, an electrolyte solution, and a current collector. The anode may include a 3D porous structure. The 3D porous structure may have a higher electrical conductivity at one end than at the other end, and lithium ions may be dispersed throughout the 3D porous structure.

Method for producing mono-cell

In producing a mono-cell, the mono-cell is formed from separator, positive electrode, separator and negative electrode which are joined to each other. Negative electrode is joined, one by one, to one surface of strip of continuously conveyed separator. Positive electrode having different size from negative electrode is joined, one by one, to the other surface of separator. Strip of continuously conveyed second separator is joined to one of negative and positive electrodes. Position of negative electrode joined to separator is detected by negative electrode joining position detection cameras, and joining position of positive electrode is corrected by positive electrode alignment mechanism with this detected position of negative electrode being a reference during conveyance of positive electrode along positive electrode conveyance direction.

ALKALINE DRY BATTERY

An alkaline dry battery includes a bottomed cylindrical case, a hollow cylindrical positive electrode that is in contact with the case from inside, a negative electrode filled in a hollow portion of the positive electrode, and including a negative electrode active material including zinc, a separator disposed between the positive electrode and the negative electrode, an alkaline electrolyte included in the positive electrode, the negative electrode, and the separator, and a sealing unit covering an opening of the case, wherein an additive is charged in a gap between the negative electrode and the sealing unit, and/or a gap between the negative electrode and a bottom portion of the case, and the additive includes an organic acid having a melting point of 90° C. or more.

SHEET-SHAPED ANODE FED-TYPE METAL-CARBON DIOXIDE BATTERY AND HYDROGEN GENERATION AND CARBON DIOXIDE STORAGE SYSTEM INCLUDING THE SAME

A metal-carbon dioxide battery and a hydrogen generation and carbon dioxide storage system including the same are disclosed. The metal-carbon dioxide battery includes: a first plate with a designated area; a second plate with a designated area and spaced apart from the first plate by a distance in an X-axis direction; a separator between the first and second plates; a frame-shaped spacer disposed between the first plate and the separator with a space between the first plate and the separator; a plurality of anode sheets in the space; a pressing unit in the space between the first plate and the anode sheets and biasing the anode sheets toward the separator; and a cathode between the second plate and the separator.

SPINNING APPARATUS

THERMALLY EFFICIENT BATTERY CELL ASSEMBLY

A battery cell assembly (200), including a rolled cell formed from a first electrode (210) and a second electrode (212) rolled together about a longitudinal axis (218). The rolled cell includes a primary section (220) in which the first electrode and the second electrode overlap in a radial direction from the longitudinal axis, and a first extension end (222) extending from a first longitudinal end of the primary section and formed from a first edge section of the first electrode. The first edge section includes a first folded portion folded to contact an adjacent portion of the first edge section. The battery cell assembly further includes a first end cap (208) coupled to the rolled cell and contacting the first folded portion.

LITHIUM ION SECONDARY BATTERY AND SEPARATION MEMBRANE

One aspect of the present invention provides a lithium ion secondary battery which sequentially comprises a positive electrode mixture layer, a separation membrane, and a negative electrode mixture layer in the stated order, wherein: the positive electrode mixture layer contains a positive electrode active material, a first lithium salt, and a first solvent; the negative electrode mixture layer contains a negative electrode active material, a second lithium salt, and a second solvent that is different from the first solvent; and the separation membrane contains a third lithium salt and a polymer that comprises, as a monomer unit, a monomer represented by formula (1). [wherein, in formula (1), R1 represents a hydrogen atom or a methyl group, R2 represents a divalent organic group, R3, R4 and R5 each independently represents a hydrogen atom or a monovalent organic group, and X- represents a counter anion.] ...

SEPARATOR FOR NONAQUEOUS ELECTROLYTE BATTERY, WOUND BODY, AND NONAQUEOUS ELECTROLYTE BATTERY

This separator for a nonaqueous electrolyte battery has a substrate and a particle layer that includes particles on the main surface of the substrate, wherein: the substrate includes a single layer or a plurality of layers; the compression elastic modulus of the particle layer, when there are a plurality of layers in the substrate, is at least 0.2 and less than 2 times the compression elastic modulus of the layer having the lowest compression elastic modulus among the layers constituting the substrate, and when the substrate is a single layer, is at least 0.2 and less than 2 times the compression elastic modulus of the substrate; and the value of T1/T2, which represents the thickness (T1) of the particle layer and the total thickness (T2) of the separator, is 0.3-1.

CELL CONSTITUENT ELEMENT, STORAGE CELL, ASSEMBLED CELL, AND ELECTRIC VEHICLE

This cell constituent element comprises a first electrode plate and a separator that overlap each other in a first direction. The first electrode plate has a body part and foot part that projects from the body part along a second direction orthogonal to the first direction and that is covered by the separator. The separator is provided with a base having a first thickness, and a thick part that has a second thickness greater than the first thickness and that abuts the foot part.

SLURRY FOR NON-AQUEOUS SECONDARY BATTERY, SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, LAMINATE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY

Provided is a slurry for a non-aqueous secondary battery with which an adhesive material can be efficiently provided at a surface of a battery member by an inkjet method or the like and that enables strong adhesion of the battery member to another battery member. The slurry contains a particulate polymer, a polyhydric alcohol compound, and water. The particulate polymer has a core-shell structure including a core portion and a shell portion at least partially covering an outer surface of the core portion. The slurry contains not less than 10 parts by mass and not more than 400 parts by mass of the polyhydric alcohol compound per 100 parts by mass of the particulate polymer.

Lamination apparatus for secondary battery

A lamination apparatus for a secondary battery comprises a roller part comprising a separator supply roller that supplies a separator sheet and an electrode supply roller that supplies an electrode sheet, a cutting part that cuts the electrode sheet supplied by the electrode supply roller to manufacture a plurality of electrode plates, a first transfer part that transfers the electrode plates cut by the cutting part at a same interval, an inspection part that inspects whether the electrode plates transferred by the first transfer part are defective, a second transfer part that transfers a normal electrode plate, which is determined as the normal electrode plate by the inspection part, among the electrode plates, and a lamination part that thermally bonds the normal electrode plate transferred by the second transfer part to the separator sheet supplied by the separator supply roller.

Separator and electrochemical device containing the same

A separator and an electrochemical device including the same. The separator includes an adhesive layer including first adhesive resin particles having an average particle diameter corresponding to 0.8-3 times of an average particle diameter of the inorganic particles and second adhesive resin particles having an average particle diameter corresponding to 0.2-0.6 times of the average particle diameter of the inorganic particles, wherein the first adhesive resin particles are present in an amount of 30-90 wt % based on a total weight of the first adhesive resin particles and the second adhesive resin particles. The separator shows improved adhesion to an electrode and provides an electrochemical device with decreased increment in resistance after lamination with an electrode.

3-D composite anodes for Li-ion batteries with high capacity and fast charging capability

An anode for a lithium ion battery is disclosed includes a first major face, a second major face that, together with the first major face, defines a thickness of the anode, and at least one carbonaceous electrochemically active lithium host material distributed between the first and second major faces of the anode. The at least one carbonaceous electrochemically active lithium host material is selected from the group consisting of graphite, hard carbon, or a blend of graphite and hard carbon. The anode additionally defines a plurality of vertical channels extending at least partially through the thickness of the anode. A lithium-ion batter that includes the disclosed anode and a method of charging a lithium-ion battery that includes the disclosed anode are also disclosed.

Secondary cell

A secondary cell includes an electrode body including a plurality of electrode groups each including a plurality of positive electrodes, a plurality of negative electrodes, and at least one separator, the positive electrodes and the negative electrodes each being alternately stacked on each other with the separator interposed in between; and at least one metal plate disposed between the electrode groups. Electrodes that are disposed at both ends of each of the electrode groups are the negative electrodes. The metal plate is in contact with a mixture layer of a negative electrode constituting at least one of the electrode groups, the metal plate being provided in a noncontact state with conductive members other than the mixture layer.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE CONTAINING SAME

An electrochemical device includes a positive electrode, a negative electrode, and a separator. The negative electrode includes a negative active material. The negative active material includes at least one of silicon, tin, germanium, antimony, bismuth, and aluminum. The separator includes a porous substrate and a coating. The coating is located between the porous substrate and the negative electrode, and the coating includes a polymer binder. Based on a total weight of the coating, a weight percent of the polymer binder is 1%-100%, and a ratio of a weight of the polymer binder in the coating per unit area to a specific capacity of a corresponding component of the negative electrode per unit area is 0.00013 mg/mAh-0.00045 mg/mAh.

Electrode assembly and battery with electrode tab

One aspect of the present application provides an electrode assembly, including a first electrode plate, a second electrode plate, and a separator disposed therebetween. The first electrode plate and the second electrode plate are wound or stacked to form the electrode assembly. Wherein the electrode assembly further includes a first electrode tab disposed on the first electrode plate, and an insulating layer including a first portion disposed on the first electrode plate. And, no second electrode plate is disposed between the first portion and the first electrode tab. The present application also provides a battery. The present application intends to at least improve the safety performance of the battery.

BATTERY, RFID TAG, AND MANUFACTURING METHOD

A battery is provided for supplying a transmitter and/or receiver of a radio tag with an electrical current of. The battery includes a first and a second cell, each comprising a respective negative electrode, a respective positive electrode, and a respective separator. The battery further includes a plurality of separate electrical conductors, including a first conductor that electrically contacts a first electrode of the first cell, a second conductor that electrically connects a second electrode of the first cell to a first electrode of the second cell to form a series connection therebetween, and a third conductor that electrically contacts a second electrode of the second cell. The battery additionally includes a first substrate and a second substrate between which the first cell, the second cell, and the plurality of separate electrical conductors are arranged.

METHOD FOR PRODUCING SEPARATOR-INTEGRATED ELECTRODE

Provided is a method with which a separator-integrated electrode can be easily produced using a water-insoluble polymer. The method for producing a separator-integrated electrode disclosed here includes the steps of: preparing a coating solution in which a water-insoluble polymer is dissolved in a mixed solvent containing a good solvent for the water-insoluble polymer and a poor solvent for the water-insoluble polymer; coating the coating solution on an electrode; and vaporizing and removing the mixed solvent from the coating solution coated on the electrode. A boiling point of the poor solvent is higher than a boiling point of the good solvent. A porous separator layer is formed by removing the mixed solvent through the vaporization and thereby forming pores.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY PACK

A nonaqueous electrolyte secondary battery includes an exterior package, an electrode assembly, and an electrolyte solution. The exterior package stores the electrode assembly and the electrolyte solution. The electrode assembly is shaped to have a flat shape. The electrode assembly includes a layered body. The layered body includes a first separator, a positive electrode plate, a second separator, and a negative electrode plate. The first separator, the positive electrode plate, the second separator, and the negative electrode plate are layered in this order. The electrode assembly is formed by spirally winding the layered body. Each of the first separator and the second separator has a proportional limit of less than or equal to 10.2 MPa. The proportional limit is measured in a compression test in a thickness direction of each of the first separator and the second separator.

Functional diaphragm for chloride ion battery, preparation method of functional diaphragm and chloride ion battery

The invention provides a preparation method of a functional diaphragm for a chloride ion battery, which comprises the following steps: adding a functional layer material into a solvent for ultrasonic dispersion to obtain a functional layer material dispersion liquid; carrying out suction filtration on the functional layer material dispersion liquid, so that the functional layer material forms a film on one surface of the battery diaphragm; performing vacuum drying on the battery diaphragm loaded with the functional material to obtain a functional diaphragm which takes the battery diaphragm as a substrate layer and loads a functional layer on the substrate layer; wherein on the basis of allowing chloride ions to pass through, the functional diaphragm prevents the easily desolventized positive electrode or negative electrode of the chloride ion battery from shuttling back and forth to the other side of the diaphragm through physical obstruction. The functional layer on the surface of the ...

3차원 배터리들을 위한 분리기들

... 에너지 저장 장치에 사용하기 위한 전극 구조로서, 이 전극 구조는 전극들의 집단, 상대 전극들의 집단 및 상대 전극 집단의 멤버들로부터 전극 집단의 멤버들을 분리하는 전기적 절연성 물질 층을 포함하고, 전극 집단의 각각의 멤버는 전기적 절연성 분리기 층에 둘러싸이는 종축 AE를 갖는다.

Separator for secondary battery

... 본 발명에 따른 이차전지용 분리막은 다공성 고분자 기재; 상기 다공성 고분자 기재의 적어도 일면 상에 위치하고, 무기입자 및 바인더 고분자를 포함하는 다공성 코팅층; 및 상기 다공성 코팅층 상에 위치하고, 폴리에틸렌 및 전해액 용해성분을 포함하는 전극 접착층;을 포함하고, 상기 전해액 용해성분의 녹는점이 25℃ 이상이며, 상기 폴리에틸렌 및 전해액 용해성분의 중량비가 95:5 내지 65:45인 것을 특징으로 한다. 본 발명에 따른 이차전지용 분리막은 전극 접착력을 충분히 확보하면서도 낮은 저항을 유지할 수 있다.

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY

The present invention pertains to a separator for a non-aqueous secondary battery, the separator comprising a porous base material and a heat-resistant porous layer that is provided on one surface or both surfaces of the porous base material and contains a resin and inorganic particles, wherein: (1) said resin includes a copolymer having a fluorinated vinylidene unit and a hexafluoropropylene unit and having a weight-average molecular weight of at least 10,000 and less than 60,000, or includes a resin containing a polyfluorinated vinylidene resin and an acrylic resin, the mass ratio of the polyfluorinated vinylidene resin and the acrylic resin contained in the heat-resistant porous layer being 90:10 to 50:50, the mass percentage of the inorganic particles in the heat-resistant porous layer is 50 mass% to 90 mass%, and the inorganic particles include first inorganic particles having an average primary particle size of 0.01 μm to 0.3 μm and second inorganic particles having an average primary ...

DIAPHRAGM-NEGATIVE ELECTRODE MATERIAL OF INTEGRATED STRUCTURE AND PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY

A diaphragm-negative electrode material of an integrated structure, and a preparation method therefor. The preparation method comprises the following steps: preparing a high-molecular polymer solution and putting same in an injector (2) of an electrostatic spinning apparatus; and placing a metal negative electrode (4) inside the electrostatic spinning apparatus, setting the power source voltage of electrostatic spinning to be 5-30 kV, and the distance between the injector (2) and the metal negative electrode (4) to be 5-50 cm, controlling the flow rate of the high-molecular polymer solution to be 300-1000 μL/h, and preparing a high-molecular diaphragm layer (3) on the surface of the metal negative electrode (4) by means of electrostatic spinning, so as to obtain a diaphragm-negative electrode material of an integrated structure.

NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT

A nonaqueous electrolyte power storage element according to an aspect of the present invention comprises a negative electrode having a negative electrode active material layer containing an acrylic resin, a positive electrode, a first separator layer, and a second separator layer. The first separator layer is interposed between the negative electrode and the positive electrode. The second separator layer is interposed between the negative electrode and the first separator layer. The porosity of the second separator layer is higher than that of the first separator layer.

ELECTROCHEMICAL SYSTEMS, METHODS, AND DEVICES USING STACKED ELECTRODE ASSEMBLIES WITH IN-STACK SENSOR ARRAYS

Presented are electrochemical devices with in-stack sensor arrays, methods for making/using such electrochemical devices, and lithium-class battery cells with stacked electrode assemblies having in-stack sensor arrays. An electrochemical device includes a device housing that stores an electrolyte composition for conducting ions. An electrode stack, which is located inside the device housing in electrochemical contact with the electrolyte, includes at least two working electrodes. An electrically insulating and ionically transmissive separator is interposed between each neighboring pair of working electrodes. A reference electrode is attached to one side of the separator and connected to multiple electrical sensing devices. Multiple electrical sensing leads are attached to another side of the separator, opposite the reference electrode, with each abutting a discrete region of a working electrode and each connecting to one of the sensing devices to transmit thereto electrical signals indicative ...

POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

This positive electrode active substance for a non-aqueous electrolyte secondary battery contains a lithium-transition metal composite oxide which has a crystal structure belonging to the space group Fm-3m and is represented by the compositional formula LixMnyMaObFc(in the formula: M is at least one type of metal element excluding Mn; x+y+a=b+c=2; 1 Подробнее

Secondary battery and manufacturing method of secondary battery

A secondary battery includes an electrode body, a battery case, and an electrode terminal. The electrode body has a foil collecting portion. The electrode terminal corresponding to at least one of a positive electrode and a negative electrode is electrically connected to the foil collecting portion via a current collector terminal. The current collector terminal is joined to the foil collecting portion. The foil collecting portion has a joining mark composed of a plurality of recesses on a surface on an opposite side of the foil collecting portion from a surface joined to the current collector terminal. The joining mark has two corners on an inner side of the electrode body and two corners on an outer side of the electrode body, and only the two corners on the inner side of the electrode body have a chamfered shape.

METHOD FOR PRODUCING ELECTRIC STORAGE DEVICE, AND ELECTRIC STORAGE DEVICE

SECONDARY BATTERY WITH IMPROVED BATTERY SEPARATOR

METHOD FOR MANUFACTURING SEPARATOR-INTEGRATED ELECTRODE COMPRISING INORGANIC LAYERS WITH MULTILAYER STRUCTURE, AND SEPARATOR-INTEGRATED ELECTRODE MANUFACTURED THEREBY

The present invention relates to a method of manufacturing a separator-composite electrode having a multilayer-structured inorganic layer and a separator-composite electrode manufactured thereby. The present invention provides a method of manufacturing a separator-composite electrode and a separator-composite electrode using the same, wherein there is no separator substrate by forming an inorganic layer serving as an insulating layer in multiple layers, thereby safety is improved and the capacity of a battery is not reduced compared to a conventional battery.

BATTERIESEPARATOREN MIT HYBRIDEN FESTKÖRPER-ELEKTROLYT-BESCHICHTUNGEN

Ein Separator umfasst einen porösen polymeren Separator mit einer Anodenseite und einer Kathodenseite, ein kathodenkompatibles Material, das auf der Kathodenseite aufgebracht ist, wobei das kathodenkompatible Material ein polymeres Bindemittel und eines oder mehrere von Lithium-Aluminium-Titanphosphat (LATP)-Teilchen, Lithium-Lanthantitanat (LLTO)-Teilchen, Lithium-Aluminium-Germaniumphosphat (LAGP)-Teilchen und Lithium-Superionenleiter (LISICON)-Teilchen umfasst, und ein anodenkompatibles Material, das auf die Anodenseite aufgebracht ist, wobei das anodenkompatible Material Lithium-Lanthan-Zirkoniumoxid (LLZO)-Teilchen und ein polymeres Bindemittel umfasst. Das polymere Bindemittel des kathodenkompatiblen Materials kann Polyvinylidenfluorid sein, und das polymere Bindemittel des anodenkompatiblen Materials kann Polyvinyliden sein. Das polymere Bindemittel des kathodenkompatiblen Materials und des anodenkompatiblen Materials kann der polymere Separator sein. Die LLZO-Teilchen und das eine ...

Electrochemical device and electronic device

The invention provides an electrochemical device and an electronic device, and the electrochemical device comprises a positive pole piece, a negative pole piece and a porous isolation layer located between the positive pole piece and the negative pole piece; an infrared spectrum test is adopted, the porous isolation layer has a first absorption peak within the wave number range of 750 cm <-1 > to 780 cm <-1 > and has a second absorption peak within the wave number range of 1660 cm <-1 > to 1685 cm <-1 >, and the peak height I1 of the first absorption peak and the peak height I2 of the second absorption peak meet the condition that I1/I2 is larger than or equal to 1 and smaller than or equal to 3. The electrochemical device provided by the invention has relatively low self discharge and relatively high safety.

SECONDARY BATTERY AND ELECTRIC DEVICE

The embodiment of the invention discloses a secondary battery and electric equipment, a first coating is arranged on one surface, facing a positive pole piece, of a base membrane, a second coating is arranged on one surface, facing a negative pole piece, of the base membrane, and the first coating comprises ceramic, an organic adhesive and an inorganic adhesive, so that a ceramic coating is formed; the high-heat-resistance ceramic can improve the heat stability of the diaphragm, compared with the mode that only the organic adhesive is adopted, the inorganic adhesive in the first coating and the organic adhesive are blended for use, the heat stability and the oxidation resistance of the diaphragm can be further improved, the second coating comprises the organic adhesive and the inorganic adhesive to form the adhesive layer, and compared with the mode that only the inorganic adhesive is adopted, the heat resistance of the diaphragm is improved. The combination of the inorganic adhesive and ...

Electrode assembly and method for manufacturing the same

The present invention relates to an electrode assembly in which a plurality of electrode units are stacked to improve product stability when manufactured and a method for manufacturing the same.In addition, the present invention is provided to include a plurality of electrode units on which electrode tabs are formed and a full length-side separator member folded in a direction in which the electrode tabs are formed and a direction opposite to the direction in which the electrode tabs are formed while stacking the plurality of electrode units to be separated from each other.

SEPARATOR FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME AND SECONDARY BATTERY INCLUDING THE SAME

A separator for a secondary battery, including a porous polymer substrate; a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes a plurality of inorganic particles and a first binder polymer that interconnects and fixes the inorganic particles; and an adhesive layer on a surface of the porous coating layer opposite to the porous polymer substrate. The adhesive layer includes a second binder polymer, and the adhesive layer includes a first layer in contact with the surface of the porous coating layer opposite to the porous polymer substrate, and a second layer integrated with the first layer and the second layer faces an electrode. The second layer has an average pore size larger than the average pore size of the first layer. The separator for a secondary battery can improve the problem related with resistance, while ensuring adhesion to an electrode.

Separator for Lithium-Sulfur Battery and Lithum-Sulfur Battery Comprising the Same

A lithium-sulfur battery which is capable of achieving high discharge capacity of sulfur (S) with a small amount of a positive electrode material is provided. The lithium-sulfur battery reduces cost for manufacturing a positive electrode due to the use of a dry manufacturing method including compressing a positive electrode active material powder into a predetermined shape without preparing a slurry for an electrode active material layer in the manufacture of the positive electrode. Using a multi-layered separator, the lithium-sulfur battery is capable of solving the nonuniform reactivity problem of the positive electrode manufactured by the dry manufacturing method.

Zinc-air battery systems and methods

A zinc-air battery cell assembly comprising: a cathode can that includes: a planar base, and an elongated cathode sidewall that extends to a terminal cathode sidewall end, and an anode can that includes: a planar top end, and an elongated anode sidewall that extends to a terminal anode sidewall end, the anode can disposed nested within the cathode can with the elongated anode sidewall disposed parallel and adjacent to the elongated cathode sidewall. The zinc-air battery assembly further includes a cavity defined by the cathode can and the anode can disposed nested within the cathode can, and a grommet that provides a seal between the cathode can and the anode can while also keeping the anode can and the cathode can separate.

LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING SAME

A lithium ion secondary battery can suppress the deterioration of the insulating property of a positive electrode insulating layer by preventing the material of the positive electrode insulating layer from sinking into a positive electrode active material layer. A lithium ion secondary battery according is a lithium ion secondary battery including a positive electrode and a negative electrode that are laminated upon each other. The lithium ion secondary battery is characterized in that the positive electrode includes: a positive electrode foil; a positive electrode active material layer formed on a surface of the positive electrode foil; and a positive electrode insulating layer formed on a surface of the positive electrode active material layer, in which the positive electrode active material layer includes a positive electrode active material and a first nonaqueous binder, and the positive electrode insulating layer includes an inorganic filler, a second nonaqueous binder, and a dispersant ...

Composition for non-aqueous secondary battery functional layer, non-aqueous secondary battery functional layer, and non-aqueous secondary battery

The disclosed non-aqueous secondary battery functional layer is formed using a composition that includes non-conductive inorganic particles and organic particles, wherein a difference in density between the non-conductive inorganic particles and the organic particles is 1.5 g/cm3or more, at least a surface layer portion of the organic particles is made of polymer having a degree of swelling in electrolysis solution of greater than 1 time to 4 times and having a glass-transition temperature of 50° C. or above, and a volume-average particle diameter of the organic particles is 0.80 to 1.50 times a volume-average particle diameter of the non-conductive inorganic particles.

LITHIUM CYLINDRICAL CELL CONFIGURED FOR DIRECT ELECTRODE-SEPARATOR CONTACT

A lithium-sulfur cylindrical cell. The cell includes a cylindrical shell defining an inner volume, and a jelly roll disposed within the inner volume. The jelly roll includes an anode comprising lithium, where the anode is configured as a freestanding assembly. Additionally, the jelly roll comprises a cathode comprising sulfur. Further, the jelly roll comprises a first separator between a first side of the anode and a first side of the cathode. In cylindrical cell formats, the jelly roll comprises a windable second separator. As the jelly roll is wound, the second separator may come in direct contact with both a second side of the anode and with a second side of the cathode. Alternatively, as the jelly roll is wound, the second separator may come in direct contact with the second side of the anode and with a cathode current collector.

Electrode Assembly Laminating Roller

The present invention relates to an electrode assembly laminating roller for laminating an electrode and a separator, wherein the laminating roller comprises a central portion; and end portions positioned at both ends of the central portion with respect to the longitudinal direction, and wherein the surface temperature of the end portion is expressed higher than the surface temperature of the central portion.

Electrode assembly having improved safety of use by means of exterior material pattern structure, and lithium-ion secondary battery having same

A lithium ion secondary battery according to the present disclosure includes: an electrode assembly; and a case having a structure in which upper stamped portions and lower stamped portions are repeatedly stamped to cover the outside of the electrode assembly, and the upper stamped portions and the lower stamped portions form a corrugated pattern, and the electrode assembly includes: one or more unit cells each equipped with a pair of electrodes having different polarities with a separator interposed therebetween; an electrode mixture coated on one or both surfaces of the pair of electrodes; and electrode tabs protruded from the respective electrodes and not coated with the electrode mixture, and the electrode tabs include an electrode parallel connection tab and an electrode lead connection tab, and any one or more of the electrode parallel connection tab and the electrode lead connection tab is formed on the electrodes, and the corrugated pattern has various intervals.

SEPARATOR HAVING HEAT RESISTANT LAYER FOR POWER STORAGE ELEMENT AND METHOD FOR MANUFACTURING SAME

SECONDARY BATTERY CELL FOR ELECTROMOBILES, COINTAINING AMORPHOUS GLASS MATERIALS AND MICRO- AND NANO MATERIALS, AND METHOD OF ITS PRODUCTION

FABRICATING METHOD OF ELECTRODE ASSEMBLY

Methods of producing batteries utilizing anode coatings directly on nanoporous separators

Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer.

Composite electrolyte structure and lithium metal battery including the same

A composite electrolyte structure includes: a protective layer having a Young's modulus of about 106 pascals or greater and including a first particle, the first particle including an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, wherein the particle in the protective layer has a particle size of greater than 1 micrometer to about 100 micrometers, and a solid electrolyte layer including a second particle including an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, wherein the second particle has a particle size of greater than 1 micrometer to about 100 micrometers, wherein the first particle and the second particle are the same or different, and wherein the protective layer is on the solid electrolyte layer.

System for an ionic liquid-based electrolyte for high energy battery

A system for electrical energy production from chemical reagents in a compartmentalized cell includes: at least two electrodes, comprising at least one anode and at least one cathode; at least one separator, that separates the anodes and the cathodes; and an ionic liquid electrolyte system. The system can be a battery or one or more cells of a battery system. The ionic liquid electrolyte system comprises an ionic liquid solvent; an ether co-solvent, comprising a minority fraction, by weight, of the electrolyte; and a lithium salt. In preferred variations, the anode is a lithium metal anode and the cathode is a metal oxide cathode and the separator is a polyolefin separator.

Unit Cell And Battery Cell Including The Same

A unit cell includes an electrode positioned between a first separator and a separator in a stack. A first adhesive is positioned between the electrode and at least one of the first and second separators, and a second adhesive is positioned between the first separator and the second separator. A shear strength of the first adhesive is less than or equal to a shear strength of the second adhesive.

Method Of Preparing Positive Electrode Active Material For Lithium Secondary Battery And Positive Electrode Active Material Prepared By The Same

A positive electrode active material for a lithium secondary battery and a method for preparing the same is disclosed herein. In some embodiments, a method comprises heating a mixed solution to combust the mixed solution into a powder, wherein the mixed solution includes a first fuel, a second fuel, a metal raw material, and water, and heat treating the powder wherein the first fuel is least one first fuel selected from the group consisting of urea, glycine, carbohydrazide, oxalyldihydrazide, and hexamethylenetetramine, the second fuel is at least one second fuel selected from the group consisting of citric acid, oxalic acid, sucrose, glucose, and acetylacetone, and the metal raw material includes a lithium raw material, a nickel raw material, a cobalt raw material, and a manganese raw material.

Sheet Cutting and Fusion Apparatus

A sheet cutting and fusion apparatus including upper and lower cutters at uppermost and lowermost surfaces, respectively, of a plurality of overlapping sheets. The upper and lower cutters includes first and second cutting surfaces configured for contacting the lower cutter without any step when the upper cutter is moved vertically and the upper cutter without any step when the lower cutter is moved vertically, respectively; first and second fusion portions parallel to the first cutting surface and to the second cutting surface, respectively; first and second steps extending between the first cutting surface and first fusion portion and extending between the second cutting surface and second fusion portion, respectively; lower and upper surfaces configured to face one of the sheets, respectively; and first and second connection portions each having a curved corner connecting the lower surface and first fusion portion and connecting the upper surface and second fusion portion, respectively ...

Electrode assembly, secondary battery including same, and method for manufacturing same

The present invention provides an electrode assembly, which can reduce resistance and improve a process property, a secondary battery including same, and a method for manufacturing same. For example, disclosed is an electrode assembly comprising: a first electrode plate having a first electrode tab attached thereto: a plurality of second electrode plates having second electrode tabs attached thereto, respectively, and a separator interposed between the first electrode plate and the plurality of second electrode plates, wherein the first electrode plate, the separator, and the plurality of second electrode plates are wound in a state of being stacked on one another, and the second electrode tabs are formed to be symmetrical to each other on the basis of a winding center thereof.

Aa lithium primary battery and aaa lithium primary battery

An AA lithium primary battery includes: an electrode group 4 including a positive electrode 1 containing iron sulfide as a positive electrode active material, and a negative electrode 2 containing lithium as a negative electrode active material which are wound with a separator 3 interposed therebetween. Part of the negative electrode 2 facing the positive electrode 1 has a mass of 0.86-1.1 g, a total volume of pores in the separator 3 having a pore size of 0.1-10 μm is 0.25 ml/g or lower, and a Gurley number of the separator 3 is 100-1000 sec/100 ml.

Electrochemical energy store comprising a separator

An electrochemical energy store comprising a separator ( 40, 40 a, 40 b ) is described, wherein said electrochemical energy store has a positively charged electrode ( 20 ), a negatively charged electrode ( 30 ), an electrolyte, and a porous separator ( 40, 40 a, 40 b ) which separates the positively charged electrode ( 20 ) and the negatively charged electrode ( 30 ) from each other. The separator ( 40, 4 a, 40 b ) includes at least one microporous foil which is produced using ion irradiation, among other things. The separator ( 40, 40 a, 40 b ) farther includes ion ducts ( 43 ) extending at different angles from one another.

Lithium-sulfur battery with polysulfide confining layer

The present invention provides a lithium-sulfur battery with a polysulfide confining layer, which can prevent loss of polysulfide formed on the surface of a positive electrode during charge and discharge reactions, thus improving the durability of the battery. For this purpose, the present invention provides a lithium-sulfur battery including a hydrophilic polysulfide confining layer interposed between a positive electrode and a separator to prevent a polysulfide-based material from being lost from the surface of the positive electrode during discharge.

Lamination type secondary batteries

The present invention provides a lamination type secondary battery in which separators are prevented from becoming wrinkled and are free from laminating dislocation. An aspect of the present invention is a lamination type secondary battery in which a plurality of planar positive electrodes ( 2 ) and negative electrodes ( 3 ) are alternately laminated. The lamination type secondary battery includes a plurality of pairs of separators ( 4 ′), an intermittent joining section ( 6 ), and an outer periphery joining section ( 7 ). Each pair of separators ( 4 ′) sandwiches and coats at least one among from the positive electrodes ( 2 ) and the negative electrodes ( 3 ). The intermittent joining section ( 6 ) is arranged at predetermined intervals along an outer periphery of each of the positive electrodes ( 2 ) or each of the negative electrodes ( 3 ). The intermittent joining section ( 6 ) is a section that joins the pair of separators ( 4 ′). The outer periphery joining section ( 7 ) partly joins the outer peripheries of the pair of separators ( 4 ′) such that the outer periphery joining section ( 7 ) is harder than the other sections.

Secondary battery assembly

A secondary battery assembly of the present invention comprises: a secondary battery including a wound electrode body enclosed in a flat rectangular case; a contact member partly contacting a side surface having a maximum area (pressed surface) of outer surfaces of the battery; and a binding member for binding the battery and the contact member, the binding member binding the contact member to partly press against the pressed surface. The contact member includes: a plurality of contact parts arranged discretely, each contact part being in contact with the pressed surface; and a connecting part connecting the contact parts. The contact parts are protruding from the connecting part toward the pressed surface, and to press more strongly both one-side regions of the pressed surface corresponding to portions off the center of the wound body in the winding axis direction, and to press less strongly a central region between the one-side regions.

LEAD-ACID BATTERY

A lead-acid battery improving the charge acceptance in an initial stage, suppressing the decrease of the charge acceptance for a long time use of the battery and having a long life is provided. In a lead-acid battery using a paste type negative plate prepared by filling a past form negative active material using a lead powder as a starting material in a collector made of a lead alloy, a flake graphite and a condensate of bisphenols and aminobenzene sulfonic acid are contained in the negative active material. The average primary particle diameter of the flake graphite is 10 μm or more and 220 μm or less, preferably, 100 μm or more and 220 μm or less. The content of the flake graphite is preferably from 0.5 mass parts to 2.7 mass parts and, more preferably, from 1.1 mass parts to 2.2 mass parts based on 100 mass parts of the negative active material (spongy metallic lead) in a fully charged state. 1. A lead-acid battery having a configuration in which a group of plates formed by stacking negative plates where a negative active material is filled in a negative collector and positive plates where a positive active material is filled in a positive collector by way of a separator is contained together with an electrolyte in a container , whereinthe negative active material contains a flake graphite and a condensate of bisphenols and aminobenzene sulfonic acid in the negative active material, and the average primary particle diameter of the flake graphite is 100 μM or more and 220 μm or less.2. (canceled)3. The lead-acid battery according to claim 1 , wherein the content of the flake graphite in the negative active material is from 0.5 mass % to 2.7 mass % of the flake graphite based on 100 mass parts of the negative active material (spongy metallic lead) in a fully charged state.4. The lead-acid battery according to claim 1 , wherein the content of the flake graphite in the negative active material is from 1.1 mass % to 2.2 mass % of the flake graphite based on 100 mass ...

Electrochemical cells, and related energy storage devices

An electrochemical cell is presented. The cell includes a housing having an interior surface defining a volume, and an elongated, ion-conducting separator disposed in the volume. The separator usually extends in a vertical direction relative to a base of the housing, so as to define a height dimension of the cell. The separator has a first circumferential surface defining a portion of a first compartment. The cell further includes a shim structure disposed generally parallel to the first circumferential surface of the separator between the interior surface and the first circumferential surface of the separator. The structure includes at least two shims, a first shim and a second shim, that substantially overlap each other. An energy storage device including such an electrochemical cell is also provided.

LEAD-ACID BATTERY WITH HIGH SPECIFIC POWER AND SPECIFIC ENERGY

The present disclosure includes a lead-acid battery having higher specific power and specific energy than prior known lead-acid batteries. A lead-acid electrochemical storage device is provided, comprising a specific power of between about 650 and about 3,050 Watts/kilogram; and a specific energy of between about 10 and about 80 Watt-hours/kilogram. In some embodiments, the device has a cycle life of greater than 150 cycles and is adapted for use in a vehicle application. The application comprises stop/start or the partial or complete electrification of the vehicle propulsion system. The device may have a bipolar or pseudo-bipolar design, multiple cells disposed within a common casing, and the cells are connected ionically within each cell and electronically between cells. 1. An electrochemical storage device , comprising:an electrochemical cell, wherein the electrochemical cell comprises lead in the active material;said device having specific energy greater than or equal to about 10 Watt-hours/kilogram; andspecific power greater than or equal to about 650 W/kg.2. The device of claim 1 , further comprising: {'br': None, 'i': P>', 'E, '1540−24'}, 'the device having specific energy greater than or equal to a value determined by the expressionWhere:P=specific power (W/kg); andE=specific energy (Wh/kg).3. The device of claim 1 , further comprising cycle life greater than or equal to about 150 cycles.4. The device of claim 2 , further comprising cycle life greater than or equal to about 150 cycles.5. The device of claim 1 , further comprising said energy and power determined for a pulse characterized by a duration selected from the group consisting of 2 sec and 10 sec in duration claim 1 , and a state-of-charge selected from the group consisting of 100% claim 1 , 80% claim 1 , and 50%.6. The device of claim 2 , further comprising said energy and power determined for a pulse characterized by a duration selected from the group consisting of 2 sec and 10 sec in duration ...

Electrode assembly having stepped portion, as well as battery cell, battery pack, and device including the electrode assembly

There is provided an electrode assembly comprising at least one stacked and folded type electrode stack in which a plurality of electrode units having electrode tabs are stacked in a state that the electrode units are separated by a sheet of separating film. The stacked and folded type electrode stack includes at least one stepped portion formed of electrode units having different areas and stacked on one another.

LAMINATION DEVICE AND METHOD AND SECONDARY BATTERY MANUFACTURING EQUIPMENT COMPRISING LAMINATION DEVICE

Discussed is a lamination device for bonding an electrode and a separator of an electrode assembly to each other. The lamination device includes: a transfer part configured to transfer the electrode assembly; a heating roller part configured to heat the electrode assembly transferred by the transfer part; and a rolling roller configured to roll the electrode assembly heated by the heating roller part so that the electrode and the separator are bonded to each other, wherein the heating roller part comprises a plurality of heating rollers configured to press and heat a surface of the electrode assembly at the same time, and the plurality of heating rollers sequentially press the surface of the electrode assembly and simultaneously heat the surface of the electrode assembly so that the electrode assembly gradually increases in temperature. 1. A lamination device for bonding an electrode and a separator of an electrode assembly to each other , the lamination device comprising:a transfer part configured to transfer the electrode assembly;a heating roller part configured to heat the electrode assembly transferred by the transfer part; anda rolling roller configured to roll the electrode assembly heated by the heating roller part so that the electrode and the separator are bonded to each other,wherein the heating roller part comprises a plurality of heating rollers configured to press and heat a surface of the electrode assembly at the same time, andwherein the plurality of heating rollers sequentially press the surface of the electrode assembly and simultaneously heat the surface of the electrode assembly so that the electrode assembly gradually increases in temperature.2. The lamination device of claim 1 , wherein the plurality of heating rollers have the same size or different sizes.3. The lamination device of claim 2 , wherein claim 2 , when the plurality of heating rollers have the different sizes claim 2 , the plurality of heating rollers have sizes that gradually ...

Lithium reservoir system and method for rechargeable lithium ion batteries

A lithium-ion battery cell includes at least two working electrodes, each including an active material, an inert material, an electrolyte and a current collector, a first separator region arranged between the at least two working electrodes to separate the at least two working electrodes so that none of the working electrodes are electronically connected within the cell, an auxiliary electrode including a lithium reservoir, and a second separator region arranged between the auxiliary electrode and the at least two working electrodes to separate the auxiliary electrode from the working electrodes so that none of the working electrodes is electronically connected to the auxiliary electrode within the cell.

STATIONARY LEAD BATTERY PERFORMANCE IMPROVEMENT METHOD

The present invention improves the performance of each lead battery, and simultaneously to establish overall balance, by inspecting the degradation state of each lead battery and performing the most suitable treatment while maintaining a state in which lead batteries are energized. This performance improvement method is for stationary lead batteries configuring a battery assembly which connects the terminals of the multiple lead batteries by means of a conducting plate, and involves a step for performing checks for inspection operations of the lead batteries, a step for measuring the internal electrical conductivity of each lead battery with the lead batteries still being in a normal use state, and a step for adding an electrolyte and purified water according to the state of each of the lead battery. 1. A method for improving performance of a stationary lead storage battery , comprising an assembly of a plurality of lead storage batteries whose terminals are connected via conductive plates , the method comprising performing preliminary checks for inspection operations of the lead storage batteries , measuring an internal electrical conductivity of each lead storage batteries during normal use of the battery , and adding an electrolyte and purified water in a form of mist based on a state of each lead storage batteries.2. A method for improving performance of a stationary lead storage battery , comprising an assembly of a plurality of lead storage batteries whose terminals are connected via conductive plates , the method comprising the steps of performing checks for preliminary inspection operations of the lead storage batteries , measuring an internal electrical conductivity of each lead storage batteries during normal use of the battery , adding an electrolyte and purified water in a form of mist based on a state of each lead storage batteries , and further adding an electrolyte and purified water in a form of liquid based on a state of each lead storage battery. ...

METHOD FOR PRODUCING A CATHODE APPARATUS, METHOD FOR PRODUCING AN ELECTRODE ASSEMBLY, AND BATTERY

The invention relates to a method for producing a cathode apparatus () for a battery (), especially of a motor vehicle (), whereby a cathode strip () is provided, whereby a cathode () is cut out of the cathode strip (), whereby the cathode () is placed between two strip-shaped separator foils (), and whereby, in a joint step, the two separator foils () are cut to size in an area that protrudes beyond the cathode (), thereby forming appropriate separator foil cutouts (), and these two separator foil cutouts () are also joined to each other in this area, especially fused together. Furthermore, the invention relates to a method for producing a cathode apparatus (), whereby a single strip-shaped separator foil () is folded and arranged on the cathode () in such a way that the folded edge of the separator foil () adjoins a contact face () of the cathode () and so that the cathode () is covered on both sides by a separator foil section () of the separator foil (). Furthermore, the invention relates to a method for producing an electrode assembly () having such a cathode apparatus (), to a battery () having such an electrode assembly (), as well as to a motor vehicle () having such a battery (). 1. A method for producing a cathode apparatus for a battery , especially of a motor vehicle , comprising:providing a cathode strip,cutting a cathode out of the cathode strip,placing the cathode between two strip-shaped separator foils, andin a joint step, cutting the two separator foils to size in an area that protrudes beyond the cathode, thereby forming appropriate separator foil cutouts, and joining the resulting two separator foil cutouts to each other in this area by fusing them together.2. A method for producing a cathode apparatus for a battery , especially of a motor vehicle , comprising:providing a cathode strip,cutting a cathode out of the cathode strip,folding and arranging a single strip-shaped separator foil on the cathode in such a way that a folded edge of the ...

Fuel cell separator with gasket for improved sealing

A fuel cell separator with a gasket for improved sealing is provided. The fuel cell separator with a gasket is capable of improving the contact pressure of a cooling surface-side airtight line by additionally forming a sub-airtight line in a region in which a gas aperture is not formed at a cooling surface-side position that corresponds to the cooling surface-side airtight line of the separator.

Molten-salt battery

There is provided with a molten-salt battery which can prevent relative positional displacement between a positive electrode or a negative electrode and a separator. Both faces of the negative electrodes are covered with the separators which are formed to bend along a lower end part of the respective positive electrodes. The separators respectively have a V-shaped or U-shaped cross section, a bent part is formed to have a valley-like (groove-like) shape, and the respective bent parts are disposed along a lower side of the positive electrodes. The positive electrodes having both faces covered with the respective separators as described above and the negative electrodes are laminated alternately. The dimension of the separators after being bent is made larger than that of the positive electrodes and the negative electrodes by 1 to 10%.

SEPARATORS FOR ENHANCED FLOODED BATTERIES, BATTERIES, AND RELATED METHODS

A battery separator has performance enhancing additives or coatings, fillers with increased friability, increased ionic diffusion, decreased tortuosity, increased wettability, reduced oil content, reduced thickness, decreased electrical resistance, and/or increased porosity. The separator in a battery reduces the water loss, lowers acid stratification, lowers the voltage drop, and/or increases the CCA. The separators include or exhibit performance enhancing additives or coatings, increased porosity, increased void volume, amorphous silica, higher oil absorption silica, higher silanol group silica, reduced electrical resistance, a shish-kebab structure or morphology, a polyolefin microporous membrane containing particle-like filler in an amount of 40% or more by weight of the membrane and ultrahigh molecular weight polyethylene having shish-kebab formations and the average repetition periodicity of the kebab formation from 1 nm to 150 nm, decreased sheet thickness, decreased tortuosity, separators especially well-suited for enhanced flooded batteries. 124-. (canceled)25. Silica for use in a battery separator , having an oil absorption from 175 ml/100 g to 350 ml/100 g.26. The silica of claim 25 , wherein the oil absorption is from 175 ml/100 g to 320 ml/100 g.27. The silica of claim 25 , wherein the oil absorption is from 175 ml/100 g to 260 ml/100 g.28. The silica of claim 25 , wherein the oil absorption is from 175 ml/100 g to 250 ml/100 g.29. The silica of claim 25 , wherein the oil absorption is from 175 ml/100 g to 250 ml/100 g.30. The silica of claim 25 , wherein the oil absorption is from 200 ml/100 g to 250 ml/100 g.31. The silica of claim 25 , wherein the average particle size of the silica is no greater than 25 microns claim 25 , no greater than 22 microns claim 25 , no greater than 20 microns claim 25 , no greater than 18 microns claim 25 , no greater than 15 microns claim 25 , or no greater than 10 microns.32. The silica of claim 31 , having an average ...

LEAD-ACID BATTERY SEPARATORS WITH ULTRA LOW RESISTIVITY AND SUSTAINED WETTABILITY

A lead-acid battery separator with ultralow resistivity results from high porosity, controlled pore () size distribution, and an ionic surfactant () with a long alkyl side chain () that is anchored to the polymer matrix () of a silica-filled polyethylene separator. The surfactant cannot be easily removed or washed away and thereby imparts sustained wettability to the separator. Controlling the number of, and volume occupied by, the pores (i.e., porosity) and pore size distribution of the separator contributes to a reduction in electrical (ionic) resistivity. 1. In a microporous polymer web configured for use as a battery separator , the microporous polymer web having a thickness and including a three-dimensional matrix of polyolefin , a wettability component , and available interconnecting pores that have surfaces and communicate through the thickness of the microporous polymer web , the available interconnecting pores included in a first number of pores having electrolyte-wettable surfaces resulting from a presence of the wettability component in sufficiently high concentrations and a second number of pores having electrolyte-nonwettable surfaces resulting from an absence of the wettability component in sufficiently high concentrations , and the battery separator formed from the microporous polymer web characterized by a porosity and an electrical resistivity when an electrolyte penetrates the first number of pores , the improvement comprising:a surface active molecule containing a hydrophobic tail component and distributed throughout the microporous polymer web, the hydrophobic tail component of the surface active molecule anchored to the three-dimensional matrix of polyolefin to make at least some of the available interconnecting pores of the second number of pores accessible to the electrolyte and thereby provide a reduction in the electrical resistivity of the battery separator.2. The microporous polymer web of claim 1 , in which the surface active molecule ...

MULTI-REGION BATTERY SEPARATORS

Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries. 1. A battery separator , comprising:a middle fiber region;a first peripheral fiber region; anda second peripheral fiber region;wherein the middle fiber region comprises fibers having an average diameter of greater than or equal to about 2 μm; andwherein each of the first and second peripheral fiber regions independently comprises glass fibers having an average diameter from about 0.1 to about 2 μm;provided that the average diameter of the fibers of the middle fiber region is larger than the average diameter of the fibers of each of the first and second peripheral fiber regions;wherein the middle fiber region is disposed between the first peripheral fiber region and the second peripheral fiber region;wherein the thickness of the middle fiber region constitutes 1-49% of the total fiber region thickness; andwherein the thickness of the first peripheral fiber region is different from the thickness of the second peripheral fiber region.2. A lead-acid battery comprising a negative plate claim 1 , a positive plate claim 1 , and a battery separator according to claim 1 , wherein the battery separator is disposed between the negative and positive plates.3. The battery separator according to claim 1 , wherein the middle fiber region comprises glass fibers having an average diameter from 2 to about 50 μm.4. The battery separator according to claim 1 , wherein the middle fiber region comprises fibers having an average ...

Method for producing an electrode unit for a battery cell and electrode unit

The invention relates to a method for producing an electrode unit for a battery cell comprising the following steps: substance-to-substance bonding of contact lugs ( 35, 36 ) of a plurality of plate-shaped segments of a first electrode ( 21, 22 ) to a strip-shaped first separator layer ( 18 ), substance-to-substance bonding of a strip-shaped second separator layer ( 19 ) to the contact lugs ( 35, 36 ) of the segments of the first electrode ( 21, 22 ) or to the first separator layer ( 18 ) such that a strip-shaped composite element ( 50 ) is produced, wherein an active material ( 41, 42 ) of the segments of the first electrode ( 21, 22 ) is surrounded by the first separator layer ( 18 ) and by the second separator layer ( 19 ), and arranging a plurality of plate-shaped segments of a second electrode ( 21, 22 ) on the composite element ( 50 ). The invention further relates to an electrode unit for a battery cell, produced by the method according to the invention.

BATTERY WITH INTERNAL MONITORING SYSTEM

A battery monitor circuit, systems and methods are disclosed. The battery monitor circuit may comprise a voltage sensor, a temperature sensor, a processor for receiving a monitored voltage signal from the voltage sensor, for receiving a monitored temperature signal from the temperature sensor, and for generating voltage data and temperature data based on the monitored voltage signal and the monitored temperature signal, an antenna, and a transmitter. The battery monitor circuit may be configured for wirelessly communicating the voltage data and the temperature data to a remote device, via the antenna. In an exemplary embodiment, the battery monitor circuit is located internal to the battery and wired electrically to the battery. 1. A battery monitor circuit for monitoring a battery , the battery monitor circuit embedded within the battery and wired electrically to the battery , the battery monitor circuit comprising:a voltage sensor for connecting electrically to the battery for monitoring a voltage between a positive terminal and a negative terminal of the battery, wherein the battery comprises at least one electrochemical cell;a temperature sensor for monitoring a temperature of the battery;a processor for receiving a monitored voltage signal from the voltage sensor, for receiving a monitored temperature signal from the temperature sensor, for processing the monitored voltage signal and the monitored temperature signal, and for generating voltage data and temperature data based on the monitored voltage signal and the monitored temperature signal;a memory for storing the voltage data and the temperature data, wherein the voltage data represents the voltage between the positive terminal and the negative terminal of the battery, and wherein the temperature data represents the temperature of the battery;an antenna; anda transmitter for wirelessly communicating the voltage data and the temperature data to a remote device via the antenna.2. The battery monitor circuit ...

Laminated cell and method for manufacturing same

A laminated cell ( 100 ) of the present invention includes a laminated body ( 120 ) formed by sequential stacking a negative electrode ( 130 ), a separator ( 170, 180 ), a positive electrode ( 150 ), and a separator ( 170, 180 ). At least one of surfaces of the positive electrode ( 150 ) or the negative electrode ( 130 ) in a stacking direction (S) has a portion to which a resin member ( 190 ) is bonded. The separators each have a portion bonded to the resin member ( 190 ) on a side facing the at least one of surfaces. In the present invention, since the separators and at least one of the positive electrode and the negative electrode are integrated together, misalignment in a stacking work can be easily suppressed and the laminated cell has excellent productivity.

SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Discussed is a separator for a lithium secondary battery and a lithium secondary battery including the same, more specifically, a separator for a lithium secondary battery including a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a defect-containing molybdenum disulfide. The separator for lithium secondary battery adsorbs lithium polysulfide through the coating layer comprising the defect-containing molybdenum disulfide and suppresses the growth of a lithium dendrite, thereby improving the capacity and lifetime characteristics of the lithium secondary battery. 1. A separator for a lithium secondary battery comprising:a porous substrate; anda coating layer on at least one surface of the porous substrate,wherein the coating layer comprises defect-containing molybdenum disulfide.2. The separator for the lithium secondary battery according to claim 1 , wherein the defect-containing molybdenum disulfide is in a shape of a nanosheet.3. The separator for the lithium secondary battery according to claim 2 , wherein the nanosheet has a thickness of from 1 nm to 20 nm.4. The separator for the lithium secondary battery according to claim 1 , wherein the defect-containing molybdenum disulfide is crystalline.5. The separator for the lithium secondary battery according to claim 4 , wherein the defect-containing molybdenum disulfide has diffraction peaks that appear in a range of diffraction angles (2θ) of 14.0±0.2° claim 4 , 33.1±0.2° claim 4 , 39.4±0.2° and 58.7±0.2° claim 4 , respectively claim 4 , as measured by X-ray diffraction (XRD).6. The separator for the lithium secondary battery according to claim 1 , wherein the defect of the defect-containing molybdenum disulfide is at least one selected from the group consisting of a point defect claim 1 , a line defect and a plane defect.7. The separator for the lithium secondary battery according to claim 1 , wherein the coating layer has a thickness of from ...

TEMPERATURE AND VOLTAGE CONTROLLED MULTI-LEVEL BATTERY ELECTROLYTE LEVEL MONITOR

A battery monitoring device includes a controller connected to terminals of a battery for monitoring the charging of the battery. A flow sensor is connected to a watering conduit to monitor a watering condition of the battery. A probe may be provided in communication with the electrolyte within each cell of the battery for monitoring electrolyte levels. A fan is operated by the controller if a temperature sensor senses the temperature of the battery is above a prescribed temperature threshold or if the voltage monitored across the terminals is indicative of completion of a charging cycle of the battery. An indicator coupled to the controller serves to indicate when watering of the battery is needed according to watering criteria, or to indicate when a watering of the battery has been completed. 1. A device for monitoring a battery having multiple cells and a varying electrolyte level , the device comprising:a water conduit connectable to a water source;a plurality of nozzles adapted to be mounted on the battery in communication with the multiple cells respectively;the plurality of nozzles being connected to the water conduit so as to receive a flow of water from the water conduit through the nozzles for distribution to the multiple cells of the battery;a flow sensor operatively connected to the water conduit so as to be arranged to detect a flow of water through the water conduit;a positive indicator which is indicative that the battery has been watered;and a controller operatively connected to the flow sensor and the indicator so as to be arranged to operate the positive indicator in response to detection of the flow of water through the water conduit so as to indicate that the battery has been watered.2. The device according to further comprising a solenoid-controlled valve operatively connected between the water conduit and the plurality of nozzles so as to be operable between an open condition permitting a flow of water from the water conduit through the nozzles ...

Method of producing laminate for secondary battery

Provided is a method that enables efficient production of a laminate for a secondary battery including an electrode and a separator that are affixed to each other while also ensuring adhesive strength between the electrode and the separator. The method of producing a laminate for a secondary battery includes: a step (A) of forming an adhesive material on an affixing surface of at least one of an electrode and a separator; a step (B) of, after step (A), conveying the electrode and the separator to an affixing start position without bringing another member into contact with the affixing surface on which the adhesive material has been formed; and a step (C) of, after step (B), affixing the electrode and the separator to each other via the affixing surface. The formed amount of the adhesive material in step (A) is not less than 0.1 g/m 2 and not more than 100 g/m 2 .

ELECTRODE ASSEMBLY UNIT, MANUFACTURING METHOD AND BATTERY CELL

The embodiment claims an electrode assembly, its manufacturing method and battery cell made of such. The assembly unit from the top to bottom integrates first electrode plate, first separator plate, second electrode plate, second separator plate and another first electrode plate. The polarity of the first and second electrode plate is opposite to each other. The edges of the first and second separator plates join on one side forming U shape structure. The electrode assembly in this embodiment is a unit for multiple stacking of such to form the internal structure of a battery cell. Such design offers improved efficiency in cell manufacturing and achieves accurate alignments between positive and negative electrodes. The assembly unit upon numerous stacking would ensure overall alignments of positive and negative electrodes for cell quality improvement. 1. An electrode assembly unit comprises an integration of a first electrode plate , a first separator plate , a second electrode plate , a second separator plate and another first electrode plate wherein the polarity of the first and second electrode plate are opposite to each other and the edges of the first and second separator plates join on one side forming a U-shape structure.21. As claimed in , such electrode assembly unit further comprises the plates of the first separator and second separator having an adhesive layer on both sides for attachment of the electrode plates.32. As claimed in , such electrode assembly unit further comprising a layer of ceramic particles between the surfaces of separator plate and adhesive layer for increased safety of the separator.4. An electrode assembly unit comprising a top-to-bottom assembly of top separator plate , electrode plate and bottom separator plate.54. As claimed in , the electrode assembly unit wherein the top and bottom separator plates are joined on one side forming U shape structure.6. A manufacturing method for the electrode assembly unit comprising combining a ...

LEAD ACID BATTERY

On each negative plate (), a non-woven fabric () composed of fibers of at least one material selected from a group of materials comprising glass, pulp and polyolefins comes into contact with the entire surface of the plate without being integrated with the plate. Each negative plate (), which is in contact with the non-woven fabric (), is contained in an envelope separator () comprising a microporous synthetic resin sheet, and is laminated with a positive plate (). The non-woven fabric is manufactured through papermaking process in which glass fibers, pulp and silica powder are preferably used and dispersed in water as the main components. 2. The lead acid battery according to claim 1 , wherein the nonwoven fabric is a mixed nonwoven fabric including glass fiber claim 1 , pulp claim 1 , and inorganic oxide powder as a principal component.3. The lead acid battery according to claim 2 , wherein the inorganic oxide powder is silica powder.4. The lead acid battery according to claim 1 ,wherein the nonwoven fabric is bent so that surfaces are opposite to each other, andthe negative plate is disposed between the surfaces opposite to each other.6. The lead acid battery according to claim 5 , wherein the negative active material includes a flake graphite having an average primary particle size of 100 μm or more for the carbon conductive material.7. The lead acid battery according to claim 5 , wherein a positive active material utilization ratio ranges from 50 to 65%.8. The lead acid battery according to claim 2 ,wherein the nonwoven fabric is bent so that surfaces are opposite to each other, andthe negative plate is disposed between the surfaces opposite to each other.9. The lead acid battery according to claim 3 ,wherein the nonwoven fabric is bent so that surfaces are opposite to each other, andthe negative plate is disposed between the surfaces opposite to each other. The present invention relates to a flooded-type lead acid battery including electrolyte free from a ...

SEPARATORS FOR FLAT PLATE BATTERIES, IMPROVED BATTERIES, AND RELATED METHODS

An exemplary hybrid battery separator is provided with a porous sheet with a folded bottom edge and joined lateral edges that form a pocket. The folded bottom edge may have one or more openings or slits. The hybrid separators of the present disclosure are particularly useful for flat-plate cycling batteries. The separators of the present disclosure may effectively enhance the battery re-chargeability and the backup time. In addition, the separators of the present disclosure may contribute to the reduction of water loss in the battery, lowering the maintenance needs in service. It is expected that batteries having the separators of the present disclosure may be useful in various applications, such as in inverters, golf carts, as well as solar and traction applications. 1. A battery separator for a lead acid battery such as a flat-plate battery comprising:a porous sheet comprising a folded bottom edge and joined lateral edges that form a pocket or envelope having an outer surface and an inner surface;wherein the folded bottom edge has one or more openings or slits;wherein both the outer and inner surfaces of the sheet comprises ribs; andwherein the outer ribs run parallel to the lateral edges and the inner ribs run parallel to or perpendicular to the lateral edges, and the outer ribs are larger than the inner ribs.2. The battery separator according to claim 1 , wherein the separator contains at least one surfactant.3. The battery separator according to claim 2 , wherein the surfactant is a non-ionic surfactant.4. The battery separator according to claim 3 , wherein the non-ionic surfactant comprises one or more polyol fatty acid esters claim 3 , polyethoxylated esters claim 3 , polyethoxylated alcohols claim 3 , alkyl polysaccharides such as alkyl polyglycosides and blends thereof claim 3 , amine ethoxylates claim 3 , sorbitan fatty acid ester ethoxylates claim 3 , organosilicone based surfactants claim 3 , ethylene vinyl acetate terpolymers claim 3 , ethoxylated ...

Metal-air battery having folded structure and method of manufacturing the same

A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer comprising a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.

SYSTEMS AND METHODS FOR A FLEXIBLE BATTERY HANDLE ASSEMBLY FOR LEAD-ACID BATTERIES

A lead-acid battery includes a handle assembly coupled to a polymer packaging of the battery. The handle assembly includes a woven fabric strap capable of laying substantially flat over a cover of the battery when the handle assembly is not in use. The handle assembly includes a first tab overmolded about a first end of the woven fabric strap, wherein the first tab is loaded into a first slot inset into a first end portion of the polymer packaging of the battery. The handle assembly also includes a second tab overmolded about a second end of the woven fabric strap, wherein the second tab is loaded into a second slot inset into a second end portion of the polymer packaging of the battery, and wherein a length of the first and second tabs is at least twice a width of the woven fabric strap. 1. A lead-acid battery , comprising: a woven fabric strap capable of laying substantially flat over a cover of the battery when the handle assembly is not in use;', 'a first tab overmolded about a first end of the woven fabric strap, wherein the first tab is loaded into a first slot inset into a first end portion of the polymer packaging of the battery; and', 'a second tab overmolded about a second end of the woven fabric strap, wherein the second tab is loaded into a second slot inset into a second end portion of the polymer packaging of the battery, wherein a length of the first and second tabs is at least twice a width of the woven fabric strap., 'a handle assembly coupled to a polymer packaging of the battery, wherein the handle assembly comprises2. The battery of claim 1 , wherein the polymer packaging and the handle assembly comprise polypropylene.3. The battery of claim 1 , wherein the first and second tabs of the handle assembly are loaded into the first and second slots claim 1 , respectively claim 1 , such that a side of the first and second tabs from which the woven fabric strap extends faces the cover of the battery packaging.4. The battery of claim 1 , wherein the ...

BATTERY SEPARATORS COMPRISING CHEMICAL ADDITIVES AND/OR OTHER COMPONENTS

Non-woven webs that can be used as battery separators for batteries, such as lead acid batteries, are generally provided. In some embodiments, battery separators comprising a non-woven web including one or more chemical additives are provided. The chemical additives may impart beneficial properties, such as enhanced separator stability and/or battery performance. In some embodiments, the chemical additive(s) may confer resistance to oxidation, heavy metal deposition, and/or formation of short circuits during cycling of a battery including the battery separator. The respective characteristics and/or amounts of the chemical additive(s) may be selected to impart desirable properties while having relatively minimal or no adverse effects on another property of the battery separator and/or the battery. 1. A battery separator , comprising:a non-woven web comprising:a plurality of glass fibers having an average diameter of greater than or equal to about 0.1 microns and less than or equal to about 15 microns, wherein the glass fibers are present in an amount of greater than or equal to about 2 wt. % and less than or equal to about 95 wt. % of the non-woven web; andone or more sulfate salts, wherein the one or more sulfate salts are present in an amount of greater than or equal to about 0.1 wt. % and less than or equal to 30 wt. % of the battery separator prior to contact with a battery electrolyte.2. A battery separator , comprising:a non-woven web comprising:a plurality of glass fibers having an average diameter of greater than or equal to about 0.1 microns and less than or equal to about 15 microns, wherein the glass fibers are present in an amount of greater than or equal to about 2 wt. % and less than or equal to about 95 wt. % of the non-woven web; andone or more antioxidants, wherein the antioxidants are present in an amount of greater than or equal to about 0.05 wt. % and less than or equal to about 5 wt. % of the battery separator.3. A battery separator , comprising: ...

SOLID COMPOSITION OF CARBON NANOFILLERS FOR FORMULATIONS USED IN LEAD BATTERIES

The invention relates to the field of lead batteries. More particularly, it relates to a solid composition comprising between 5 and 60 wt. % of carbon nanofillers, preferably carbon nanotubes, dispersed homogeneously in a hydrosoluble polymer in the presence of at least one cationic component selected from alkali or alkaline-earth metal cations and ammonium ions. The invention also relates to the use of said composition for producing lead battery electrode formulations. 110-. (canceled)12. The composition of claim 11 , wherein the composition is in an agglomerated physical form and wherein the composition comprises from 18% to 50% by weight of the carbon-based nanofillers claim 11 , with respect to the total weight of the composition.13. The composition of claim 11 , further comprising water claim 11 , wherein the composition is in a wet solid form comprising from 10% to 30% by weight of the carbon-based nanofillers claim 11 , with respect to the total weight of the composition.14. The composition of claim 11 , wherein the carbon-based nanofillers comprise crude carbon nanotubes that have not been subjected to any chemical claim 11 , thermal and/or mechanical treatment.15. The composition of claim 11 , wherein the water-soluble polymer is selected from the group consisting of modified celluloses claim 11 , lignosulfonates claim 11 , polyether polycarboxylates or their copolymers claim 11 , naphthalenesulfonates and their derivatives claim 11 , and their corresponding aqueous solutions.16. The composition of claim 11 , wherein the composition comprises from 0.05% to 10% by weight of the cationic component claim 11 , with respect to the total weight of the composition.17. The composition of claim 11 , wherein the cationic component is a Na cation.18. A lead battery electrode obtained from the composition of .19. A lead battery comprising the at least one electrode of .20. The electrode of claim 18 , wherein the electrode is an anode.21. The electrode of claim 18 , ...

BATTERY CELL, VEHICLE BATTERY, MOTOR VEHICLE AND METHOD FOR PRODUCING A CARRIER ELEMENT FOR AN ELECTRODE OF A BATTERY CELL

A battery cell with at least one electrode which has a carrier element and an active layer abutting the carrier element and with an electrode material for the alternating uptake and release of ions, the carrier element electrically connecting the active layer with an electric connecting pole of the battery cell, and having an electrically conductive surface for said exchanging of electrons with the electrode material of the active layer. The electrically conductive surface of the respective carrier element is provided by electrical conducting elements, the conducting elements being provided by fibers and/or granules and/or a slotted and/or perforated film and/or film strip and/or a wad. 1. A battery cell comprising: at least one electrode which has a carrier element and an active layer abutting the carrier element and with an electrode material for the alternating uptake and release of ions , the carrier element electrically connecting the active layer with an electric connecting pole of the battery cell , and having an electrically conductive surface for exchanging electrons with the electrode material of the active layer , wherein the electrically conductive surface of the respective carrier element is provided by electrical conducting elements , the conducting elements being provided by fibers and/or granules and/or a slotted and/or perforated film and/or film strip and/or a wad.2. The battery cell according to claim 1 , wherein the fibers and/or film strips are provided as a felt or nonwoven fabric or woven fabric.3. The battery cell according to claim 1 , wherein at least some or most or all of the fibers or film strips are oriented towards the electrode terminal.4. The battery cell according to claim 1 , wherein some or all conducting elements are made of an electrically conductive material.5. The battery cell according to claim 1 , wherein some or all conducting elements are each formed by a basic element having an electrically conductive coating and/or ...

BATTERY SEPARATORS WITH CROSS RIBS AND RELATED METHODS

A separator for a lead acid battery is a porous membrane having a positive electrode face and a negative electrode face. A plurality of longitudinally extending ribs, a plurality of protrusions or a nonwoven material may be disposed upon the positive electrode face. A plurality of transversely extending ribs are disposed upon the negative electrode face. The transverse ribs disposed upon the negative electrode face are preferably juxtaposed to a negative electrode of the lead acid battery, when the separator is placed within that battery. 1. A separator for a lead acid battery comprising:a porous membrane having a positive electrode face and a negative electrode face;a plurality of longitudinally extending ribs being disposed upon said positive electrode face; anda plurality of substantially transversely extending ribs being disposed upon said negative electrode face,wherein said transverse ribs disposed upon said negative electrode face being adapted to be juxtaposed to a negative electrode, when the separator is placed within the lead acid battery, wherein the transversely extending ribs are discontinuous and include a plurality of longitudinally extending fissures, channels, recesses, or openings.2. The separator of claim 1 , wherein the transversely extending ribs are shorter and more closely spaced than the longitudinally extending ribs.3. (canceled)4. The separator of claim 1 , wherein the transversely extending ribs and the longitudinally extending ribs are formed by calender roll molding.5. The separator of claim 1 , wherein the separator is one of a macroporous membrane and a microporous membrane.6. The separator of claim 5 , wherein the separator is a polyethylene microporous membrane.7. In a separator for a lead acid battery having a porous backweb with a first surface and a second surface claim 5 , the improvement comprising: a plurality of transverse ribs being disposed upon the second surface of the backweb claim 5 , wherein the transversely extending ...

SEPARATORS FOR ENHANCED FLOODED BATTERIES, BATTERIES, AND RELATED METHODS

A battery separator has performance enhancing additives or coatings, fillers with increased friability, increased ionic diffusion, decreased tortuosity, increased wettability, reduced oil content, reduced thickness, decreased electrical resistance, and/or increased porosity. The separator in a battery reduces the water loss, lowers acid stratification, lowers the voltage drop, and/or increases the CCA. The separators include or exhibit performance enhancing additives or coatings, increased porosity, increased void volume, amorphous silica, higher oil absorption silica, higher silanol group silica, reduced electrical resistance, a shish-kebab structure or morphology, a polyolefin microporous membrane containing particle-like filler in an amount of 40% or more by weight of the membrane and ultrahigh molecular weight polyethylene having shish-kebab formations and the average repetition periodicity of the kebab formation from 1 nm to 150 nm, decreased sheet thickness, decreased tortuosity, separators especially well-suited for enhanced flooded batteries. 124-. (canceled)25. A polyolefinic battery separator having an electrical resistance no greater than about 160 mΩ·cm , no greater than about 140 mΩ·cm , or no greater than about 120 mΩcm.26. The polyolefinic battery separator of claim 25 , wherein the electrical resistance is no greater than about 100 mΩ·cm claim 25 , no greater than about 80 mΩ·cm claim 25 , or no greater than about 60 mΩ·cm.27. The polyolefinic battery separator of claim 25 , wherein the electrical resistance is no greater than about 50 mΩ·cm claim 25 , no greater than about 40 mΩ·cm claim 25 , no greater than about 30 mΩ·cm claim 25 , or no greater than about 20 mΩ·cm.28. The polyolefinic battery separator of claim 25 , wherein the separator has a backweb thickness from 40 microns to 500 microns.29. The polyolefinic battery separator of claim 28 , wherein the backweb thickness is from 40 microns to 400 microns.30. The polyolefinic battery separator ...

METHOD OF CHARGING BATTERY AND SYSTEM USING THE SAME

A method of charging a battery and a system using the same are provided. The method includes: detecting a terminal voltage of a battery; When the terminal voltage is less than a voltage threshold, performing quick charging which includes: calculating a rising rate of the terminal voltage, comparing the rising rate with a rising rate reference value, and controlling the terminal voltage according to the comparison result; and when the terminal voltage is not less than the voltage threshold, performing low current floating charging which includes: intermittently charging the battery by a predetermined floating charging period, calculating a falling rate of the terminal voltage, comparing the falling rate with a falling rate reference value, controlling the terminal voltage according to the comparison result, in a first time duration of the floating charging period, and suspending charging in a second time duration of the floating charging period. 1. A method of charging a battery , comprising:detecting a terminal voltage of a battery;when the terminal voltage is less than a voltage threshold, performing a step of quick charging, wherein the step of quick charging includes: calculating a rising rate of the terminal voltage, comparing the rising rate with a rising rate reference value and producing a comparison result, and controlling the terminal voltage according to the comparison result; andwhen the terminal voltage is not less than the voltage threshold, performing a step of low current floating charging, wherein the step of low current floating charging comprises: intermittently charging the battery by a predetermined floating charging period, calculating a falling rate of the terminal voltage, comparing the falling rate with a falling rate reference value and producing a comparison result, controlling the terminal voltage according to the comparison result, in a first time duration of the floating charging period, and suspending charging in a second time duration ...

Accumulator device

An electricity storage device includes a first electrode sheet, separators, and a second electrode sheet. The separators each include primary protrusions, which are located on the opposite sides of the first electrode sheet and protrude from the first electrode sheet, and secondary protrusions, which are located on the opposite sides of the first electrode sheet and protrude from the first electrode sheet in a direction different from the protrusion direction of the primary protrusions. The primary protrusions are welded to each other in a first weld region, and the secondary protrusions are welded to each other in a second weld region. The region width of the first weld region in the protrusion direction of the primary protrusions is greater than the region width of the second weld region in the protrusion direction of the secondary protrusions.

Core and separator roll

A core prevents or reduces misalignment of a battery separator wound around the core. The core has one or more grooves in the outer peripheral surface thereof. The grooves extend substantially in the width direction of the core. The grooves have a depth of 30 μm or greater, and the following condition (1) is satisfied: N/D >0.0025   (1) where D is the outer circumference in mm of the core and N is the number of the grooves in the outer peripheral surface.

Battery, battery manufacturing method, and packaged electrode

The present invention provides a battery capable of suppressing or avoiding degradation of a positive electrode due to heat applied in thermal welding of separators, and of preventing short circuit through the welded portions. A battery ( 10 ) of the present invention includes a packaged positive electrode ( 40 ) made by placing a positive electrode ( 50 ) in a package formed by joining at least part of end portions of a separator ( 60 ) together by thermal welding; and a negative electrode ( 30 ) being larger than the positive electrode ( 50 ) and stacked on the packaged positive electrode ( 40 ). Welded portions of the separator ( 60 ) formed by the thermal welding are provided outside an outer periphery of the negative electrode ( 30 ), when seen in a stacking direction.

BATTERY MODULE

A battery module includes: a positive electrode member having a positive electrode current collector, a first positive electrode active material layer, and a second positive electrode active material layer; a negative electrode member having a negative electrode current collector, a first negative electrode active material layer, and a second negative electrode active material layer; and a separator. The positive electrode current collector has a positive electrode folded-back portion. The negative electrode current collector has a negative electrode folded-back portion. The first negative electrode active material layer constitutes a first electrode together with the first positive electrode active material layer. The second negative electrode active material layer constitutes a second electrode connected in parallel with the first electrode together with the second positive electrode active material layer. 1. A battery module with a plurality of electrodes connected in parallel with each other , the battery module comprising:a positive electrode member having a positive electrode current collector, a first positive electrode active material layer provided on the positive electrode current collector, and a second positive electrode active material layer provided on the positive electrode current collector;a negative electrode member having a negative electrode current collector, a first negative electrode active material layer provided on the negative electrode current collector, and a second negative electrode active material layer provided on the negative electrode current collector; anda separator arranged between the positive electrode member and the negative electrode member,the positive electrode current collector having a positive electrode folded-back portion in which the positive electrode current collector is folded back so that the first positive electrode active material layer and the second positive electrode active material layer are aligned in a ...

Electrode body for lithium battery, and lithium battery

An electrode body for a lithium battery includes a collector electrode, a negative electrode active material layer which is provided to come into contact with one surface of the collector electrode and contains a Li metal or a Li alloy, a soggy sand electrolyte layer that is provided on a side of the negative electrode active material layer which is opposite to a collector electrode side, and an inorganic solid electrolyte layer that is provided on a side of the soggy sand electrolyte layer which is opposite to a negative electrode active material layer side. In the soggy sand electrolyte layer, a plurality of particles is impregnated with an ordinary temperature molten salt electrolyte.

Method for Producing Mono-Cell

In producing a mono-cell, the mono-cell is formed from separator, positive electrode, separator and negative electrode which are joined to each other. Negative electrode is joined, one by one, to one surface of strip of continuously conveyed separator. Positive electrode having different size from negative electrode is joined, one by one, to the other surface of separator. Strip of continuously conveyed second separator is joined to one of negative and positive electrodes. Position of negative electrode joined to separator is detected by negative electrode joining position detection cameras, and joining position of positive electrode is corrected by positive electrode alignment mechanism with this detected position of negative electrode being a reference during conveyance of positive electrode along positive electrode conveyance direction.

Energy storage device

An energy storage device in which a micro-short circuit at the time of heat generation is suppressed is provided. The energy storage device includes: a positive electrode; a negative electrode containing a negative composite layer; and a separator disposed between the positive electrode and the negative electrode. The separator contains a base material layer containing a thermoplastic resin and an inorganic layer formed on the base material layer, the inorganic layer opposes to the positive electrode, the base material layer opposes to the negative electrode, and a ratio of a mass of the base material layer per unit area to a spatial volume of the negative composite layer is 0.26 or more.

Reinforced bipolar battery assembly

An article having (a) one or more stacks of a plurality of electrode plates include: (i) one or more bipolar plates having a substrate having an anode on one surface and a cathode on an opposing surface; (ii) a separator and a liquid electrolyte located between each of the electrode plates; (b) a first end plate having a first end plate internal reinforcement structure, attached at an end of the one or more stacks; (c) a second end plate having a second end plate internal reinforcement structure, attached at an opposing end of the one or more stacks as the first end plate; wherein the first end plate and the second end plate reinforce the plurality of electrode plates during a charge cycle, a discharge cycle, or both the charge cycle and the discharge cycle.

SECONDARY BATTERY

A secondary battery that includes an electrode assembly having a plurality of electrode configuration layers, each electrode configuration layer including a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode; and an exterior body enclosing the electrode assembly. The electrode assembly has a substantially circular plan view shape with a single partial notch. 1. A secondary battery comprising:an electrode assembly having a plurality of electrode configuration layers, each electrode configuration layer including a positive electrode having a positive electrode tab, a negative electrode having a negative electrode tab, and a separator between the positive electrode and the negative electrode, wherein the electrode assembly has a substantially circular plan view shape with a single partial notch, the positive electrode tab and the negative electrode tab are located adjacent to each other in a region defined by the single partial notch, and the region defined by the single partial notch is shaped such that the positive electrode tab is surrounded on at least two sides thereof by the positive electrode and the negative electrode tab is surrounded on at least two sides thereof by the negative electrode; andan exterior body enclosing the electrode assembly.2. The secondary battery according to claim 1 , wherein the secondary battery has a substantially circular plan view shape.3. The secondary battery according to claim 1 , wherein the exterior body comprises a first part and a second part claim 1 , the first part forming a positive electrode terminal claim 1 , and the second part forming a negative electrode terminal.4. The secondary battery according to claim 3 , wherein the positive electrode includes a positive current collector and a positive electrode material layer only on one surface of the positive current collector claim 3 , and the positive electrode is located on an outermost portion of the ...

Separator for rechargeable lithium battery and rechargeable lithium battery including the same

A separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator, the separator including a porous substrate; and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes organic filler particles, fluorine organic binder particles, and (meth)acryl organic binder particles, an average particle diameter of the organic filler particles is equal to or greater than an average particle diameter of the fluorine organic binder particles, and the fluorine organic binder particles are coated on the porous substrate as a part of the coating layer in an amount of less than about 0.1 g/m 2 per surface.

Electric storage device

An electrical storage device includes a case having first and second opposed main walls which face one another and at least one side wall coupled the first and second main walls. The case having a generally rectangular shape with outer corners and includes a cutout part having inner corners. An integrated electrode body is located in the case and is joined to the first main wall. The integrated body includes a first electrode, a second electrode, and a separator disposed between the first and second electrodes. The electrode body has a bending strength which is higher than a bending strength of the first main wall. An electrolyte fills the case.

Bag-shaped separator for electric storage device, thermal bonding method and thermal bonding device therefor, and electric storage device

The present invention provides a bag-shaped separator made of a separator material containing a material having the softening or melting point with a thermally bonded portion less susceptible to breakage, a thermal bonding method and a thermal bonding device therefor, and an electric storage device. The bag-shaped separator is formed with two sheets of a separator material with piled or a one sheet of the separator material with folded and piled. The separator material includes a polymer material having a melting or softening point and has one or more thermal bonding regions 30 at the edge of piled separator materials. The thermal bonding region 30 includes a fused region 31 where the separator material solidifies again after melting or softening, and a region 32 where the fusion rate of the polymer material decreases continuously from the fused region 31 toward a region 34 adjacent to the thermal bonding region 30.

ELECTROCHEMICAL ELEMENT FOR INDUCING INTERNAL SHORT CIRCUIT, AND METHOD FOR EVALUATING SAFETY USING SAME

The present technology relates to: an electrochemical element which comprises a separator having through-holes formed therein, a through-hole cover material, and a spacer; and a method for using the electrochemical element to evaluate the safety of an energy storage device by means of an internal short circuit. An energy storage device including the electrochemical element according to the present invention is characterized in that: the energy storage device can be restored, after an internal short circuit evaluation test, to a state in which a short circuit has not occurred; and a repeat test and evaluation can be carried out without disassembly and reassembly.

Air electrode/separator assembly and zinc-air secondary battery

Provided is an air electrode/LDH separator assembly including: a rigid porous layer having rigidity and air permeability, wherein the rigidity is defined as a proportion of displacement in a compression direction of less than 3% when pressurized at 0.1 MPa; an air electrode layer that covers both sides of the rigid porous layer, or both sides and end faces of the rigid porous layer provided that at least one end face is excluded; and a layered double hydroxide (LDH) separator that covers an outside of the air electrode layer; wherein i) the rigid porous layer is made of a metal or an electrically conductive ceramic, whereby the rigid porous layer itself functions as a positive electrode current collector, or ii) the rigid porous layer is made of an insulating material and is covered with a porous metal layer, whereby the porous metal layer functions as a positive electrode current collector.

MULTI-REGION BATTERY SEPARATORS

Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries. 1. A battery separator , comprising:a middle fiber region;a first peripheral fiber region; anda second peripheral fiber region;wherein the middle fiber region comprises fibers having an average diameter from 2 to about 50 μm; andwherein each of the first and second peripheral fiber regions independently comprises glass fibers having an average diameter from about 0.1 to about 2 μm;provided that the average diameter of the fibers of the middle fiber region is larger than the average diameter of the fibers of each of the first and second peripheral fiber regions;wherein the middle fiber region is disposed between the first peripheral fiber region and the second peripheral fiber region;wherein the thickness of the middle fiber region constitutes 1-49% of the total fiber region thickness; andwherein the separator exhibits an acid filling time of about 17 to about 155 seconds.2. The battery separator according to claim 1 , wherein the middle fiber region comprises glass fibers having an average diameter from 2 to about 50 μm.3. The battery separator according to claim 1 , wherein the middle fiber region comprises fibers having an average diameter from about 3 to about 15 μm.4. The battery separator according to claim 1 , wherein the middle fiber region comprises glass fibers having an average diameter from about 3 to about 15 μm.5. The battery separator according to claim 1 , wherein each of the first and second ...

Battery Separator With Improved Oxidation Stability

The invention relates to a thermoplastic polymer-based battery separator, which contains a compound of formula R (OR)(COOM). In said formula, R represents a non-aromatic hydrocarbon group comprising between 10 and 4,200 carbon atoms, which can be interrupted by oxygen atoms, Rrepresents H, —(CH)COOMor —(CH)—SOM, whereby k stands for 1 or 2, M represents an alkali or earth alkaline metal ion, H or NH, whereby not all variables of M are defined simultaneously as H, n stands for 0 or 1, m stands for 0 or a whole number from 10 to 1,400 and x stands for 1 or 2. The ratio of oxygen atoms to carbon atoms in the compound according to the aforementioned formula ranges between 1:1.5 and 1:30 and n and m cannot simultaneously represent zero. 3. The process of claim 1 , wherein said battery separator is formed by mixing said polyolefin and oil claim 1 , and wherein said process further comprises extruding said polyolefin and oil into a sheet and subsequently extracting at least a portion of the oil from the sheet.4. The process of claim 2 , wherein said at least one further additive comprises oil claim 2 , and wherein said process further comprises extruding said oil and said polyolefin into a sheet and subsequently extracting at least a portion of the oil from the sheet.5. The process of claim 1 , wherein in said Formula (I) claim 1 , R is a hydrocarbon radical with 10 to 180 carbon atoms claim 1 , which can be interrupted by 1 to 60 oxygen atoms.6. The process of claim 2 , wherein in said Formula (I) claim 2 , R is a hydrocarbon radical with 10 to 180 carbon atoms claim 2 , which can be interrupted by 1 to 60 oxygen atoms.7. The process of claim 1 , wherein R is a hydrocarbon radical of the formula R—[(OCH)](OCH)]— claim 1 , in which{'sup': '2', 'Ris an alkyl radical with 10 to 30 carbon atoms,'}p is an integer from 0 to 30, and/orq is an integer from 0 to 30.8. The process of claim 2 , wherein R is a hydrocarbon radical of the formula R—[(OCH)](OCH)]— claim 2 , in which{' ...

LEAD-ACID BATTERY SEPARATORS WITH IMPROVED PERFORMANCE AND BATTERIES AND VEHICLES WITH THE SAME AND RELATED METHODS

Improved battery separators are disclosed herein for use in flooded lead-acid batteries, and in particular enhanced flooded lead-acid batteries. The improved separators disclosed herein provide for enhanced electrolyte mixing and substantially reduced acid stratification. The improved flooded lead-acid batteries may be advantageously employed in applications in which the battery remains in a partial state of charge, for instance in start/stop vehicle systems. Also, improved lead-acid batteries, such as flooded lead-acid batteries, improved systems that include a lead-acid battery and a battery separator, improved battery separators, improved vehicles including such systems, and/or methods of manufacture and/or use may be provided. 1. A battery separator for enhancing acid mixing in a flooded lead acid battery comprising:a porous backweb and a plurality of broken ribs extending from at least one side of the backweb; andat least a portion of said plurality of broken ribs being defined by an angular orientation to enhance acid mixing especially during battery movement with the separator positioned parallel to start and stop motion of the battery.2. The battery separator of claim 1 , said angular orientation is relative to a machine direction of the separator and said angular orientation is an angle chosen from the group consisting of between greater than zero degrees (0°) and less than 180 degrees (180°) claim 1 , and greater than 180 degrees (180°) and less than 360 degrees (360°).3. The battery separator of further comprising:one or more sets of ribs within said plurality of broken ribs; anda first set of ribs within said one or more sets of ribs having a first angular orientation;at least a second set of ribs within said one or more sets of ribs having a second angular orientation.4. The battery separator of claim 1 , wherein said plurality of broken ribs are arranged in an array of columns and rows.5. The battery separator of claim 4 , wherein said columns being ...

SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

One of the objects of the present invention is to provide a secondary battery and a method for manufacturing the same capable of maintaining high insulation between electrodes and more effectively suppressing internal short circuit. The secondary battery has a positive electrode and a negative electrode disposed to face the positive electrode. Each of the positive electrode and the negative electrode comprises a current collector and an active material layer formed on at least one surface of the current collector, and at least one of the positive electrode and the negative electrode further comprises an insulating layer formed on a surface of the active material layer. The insulating layer is a porous insulating layer containing a plurality of nonconductive particles, and when the average particle diameter of the particles is represented by μm, a porosity index represented by an average particle diameter of the particles×porosity is 0.4 or less. 1. A secondary battery comprising:a positive electrode, anda negative electrode disposed to face to the positive electrode,wherein each of the positive electrode and the negative electrode comprises a current collector and an active material layer formed on at least one surface of the current collector, and at least one of the positive electrode and the negative electrode further comprises an insulating layer formed on a surface of the active material layer, andthe insulating layer is a porous insulating layer containing a plurality of nonconductive particles, and when the average particle diameter of the particles is represented by μm, a porosity index represented by an average particle diameter of the particles×porosity is 0.4 or less.2. The secondary battery according to claim 1 , wherein the average particle diameter of the nonconductive particles is 0.4-5 μm.3. The secondary battery according to claim 1 , wherein further comprises a separator disposed between the positive electrode and the negative electrode claim 1 , ...

Secondary battery comprising insulator

Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, a plurality of fine pores having a size that allows permeation of an electrolyte solution, but does not allow permeation of foreign materials, and a plurality of strip or bead shaped protrusions disposed in transverse and/or longitudinal directions on one or both surfaces of the insulator.

Laminated electrode assembly manufacturing device and method

This layered electrode body production device is provided with: a first layering drum for layering, on a first layering stage, a layered body obtained by layering a separator single sheet and an electrode and then cutting the separator single sheet of the resulting layered body to a specific width; and a second layering drum, which is different from the first layering drum, that is for layering the cut layered body on a second layering stage, which is different from the first layering stage.

Positive electrode for nonaqeous electrolyte secondary battery and a nonaqueous electrolyte secondary battery

There is provided a positive electrode for nonaqueous electrolyte secondary batteries having a high-density and a high folding strength. There is also provided a nonaqueous electrolyte secondary battery including such a positive electrode. The positive electrode has a high folding strength when it is used in a battery with a high current density, and a nonaqueous electrolyte secondary battery having such a positive electrode. The positive electrode has an electrode body having formed a folded portion at least at one part of the positive electrode. With respect to a cross-section of the positive electrode composition layer, a domain A extends from a central part to a surface side of a thickness direction, and a domain B extends from the central part to the current collector. The distribution of the binder in domain A and domain B are specified.

Electrochemical cell

The present invention discloses an electrochemical cell, comprising a negative electrode, a positive electrode, an absorption layer, and an electrolyte. The absorption layer is positioned between the negative electrode and the positive electrode and releases hydrogen ions by means of having metal ions be redox absorbed to active C—H bonds of the absorption layer. The electrolyte is positioned between the negative electrode and the positive electrode.

Secondary battery

A secondary battery is provided, which includes a laminated electrode body and which has a current-collecting structure with favorable structural stability even when mounted to a vehicle and with superior high-rate charge-discharge characteristics. In a laminated electrode body included in a secondary battery provided by the present invention, a laminated positive electrode current collector-exposed portion and a laminated negative electrode current collector-exposed portion respectively constitute a plurality of current collector bundles which are bundled while being divided into two or more in a direction of lamination, each of the plurality of current collector bundles is individually and separately joined to the current collector portion on the same electrode side, and any of separators between positive and negative electrodes is enveloped in any of the plurality of current collector bundles on the side of the positive electrode current collector-exposed portion and/or any of the plurality of current collector bundles on the side of the negative electrode current collector-exposed portion.

SEALED BATTERY WITH LIQUID CRYSTAL DISPLAY

A battery is disclosed that includes a sealed case. A plurality of cells are positioned in the sealed case. A controller is connected with and powered by the cells. A display is connected with the controller and mounted on the case. The controller is configured to monitor at least one state of the battery, wherein the at least one state comprises a voltage level state of the battery. The controller is configured to display the voltage level state on the display. 1. A battery , comprising:a sealed case;a plurality of cells positioned in said sealed case;a controller connected with and powered by said cells;a display connected with said controller and mounted on said case; wherein said controller is configured to monitor at least one state of said battery, wherein said at least one state comprises a voltage level state of said battery; andwherein said controller is configured to display said voltage level state on said display.2. The battery of claim 1 , wherein said display comprises a liquid crystal display.3. The battery of claim 1 , wherein said controller is configured to display a charge level state on said display.4. The battery of claim 1 , wherein said cells include a gelified electrolyte.5. The battery of claim 1 , wherein said case includes at least one vent associated with each said cell.6. The battery of claim 1 , wherein said controller is configured to display a number of days installed indication on said display.7. The battery of claim 1 , wherein said controller is connected with a sound emitting device claim 1 , wherein said controller is configured to generate an alarm on said sound emitting device if the controller detects an error condition associated with said battery.8. The battery of claim 7 , wherein said error condition comprises an abnormal voltage level.9. The battery of claim 7 , wherein said error condition comprises a low voltage level capacity.10. A battery claim 7 , comprising:a sealed case;a plurality of cells positioned in said ...

Film electrode, resin layer forming ink, inorganic layer forming ink, and electrode printing apparatus

A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

In a non-aqueous electrolyte secondary battery according to one exemplary embodiment, a separator includes a substrate, a first filler layer containing phosphate particles and formed on at least one surface of the substrate, and a second filler layer containing inorganic particles and formed on a surface of the first filler layer on the side of the at least one surface of the substrate. The phosphate particles have a BET specific surface area of 5 m/g or more and 100 m/g or less. 1. A non-aqueous electrolyte secondary battery comprising: a positive electrode ,a negative electrode, and a separator,wherein the separator includes:a substrate;a first filler layer containing phosphate particles and formed on at least one surface of the substrate; anda second filler layer containing inorganic particles having a higher melting point than the phosphate particles and formed on a surface of the first filler layer on a side of the at least one surface of the substrate, and{'sup': 2', '2, 'wherein the phosphate particles have a BET specific surface area of 5 m/g or more and 100 m/g or less.'}2. The non-aqueous electrolyte secondary battery according to claim 1 ,wherein the first filler layer and the second filler layer are formed on only one surface of the substrate, andwherein the separator is disposed between the positive electrode and the negative electrode with the one surface of the substrate facing the positive electrode.3. The non-aqueous electrolyte secondary battery according to claim 1 , claim 1 , wherein the phosphate particles have a BET specific surface area of 20 m/g or more and 100 m/g or less.4. The non-aqueous electrolyte secondary battery according to claim 1 , wherein the phosphate particles comprise at least one selected from lithium phosphate claim 1 , dilithium hydrogen phosphate claim 1 , and lithium dihydrogen phosphate.5. The non-aqueous electrolyte secondary battery according to claim 1 , wherein an average particle size of the phosphate particles is ...

Power storage unit and electronic device including the same

A short-circuit between a positive electrode and a negative electrode due to a deposit on an electrode plate is prevented in a power storage unit such as a lithium-ion secondary battery. An electrode plate is covered by a folded insulating sheet. Bonding is performed on facing edges of the sheet which overlap with each other in a portion outer than the electrode plate. One or more openings are formed in the electrode plate, and the facing edges of the folded sheet are bonded to each other also in the opening. Such a bonding portion enables the sheet to be in closer contact with the electrode plate and prevents the displacement between the sheet and the electrode plate. When the electrode plate is deformed or vibrated, the sheet can be rubbed against a surface of the electrode plate, thereby removing a deposit from the surface of the electrode plate.

SEPARATOR MATERIAL FOR FORMING A SEPARATOR FOR A LEAD-ACID ACCUMULATOR

The invention relates to a separator material () for forming a separator for a lead-acid accumulator, especially in the form of unfinished rolled product, and a method for the production thereof. The inventive separator material () comprises a first layer in the form of a microporous film () and at least one second layer in the form of a planar fleece material (). At least one face of the microporous film (), which is made of a thermoplastic material, is provided with a number of protrusions (′) defining an area with an increased film thickness on a basic film sheet. The fleece material () is welded to the film () by means of ultrasonic welding in such a way that the planar fleece material () is located at least at the level of the surface of the basic film sheet without invading the same in the area of the welded joints (). 122-. (canceled)23. A separator for a lead-acid accumulator , comprisinga first layer in the form of a microporous film, and at least one second layer in the form of a planar fleece material,wherein said microporous film comprises polyethylene and silica,wherein said microporous film comprises integral protrusions, said protrusions comprising side edge ribs on each side edge area of the microporous film, and central ribs on the central area of the microporous film;wherein said planar fleece material comprises glass fibers; andwherein said planar fleece material is welded to at least some of the central ribs.24. The separator according to claim 23 , wherein the side edge ribs are more densely spaced than the central ribs.25. The separator according to claim 23 , wherein the side edge ribs are continuous.26. The separator according to claim 23 , wherein the side edge ribs are discontinuous.27. The separator according to claim 23 , wherein the central ribs are continuous.28. The separator according to claim 23 , wherein the central ribs are discontinuous.29. The separator according to claim 23 , wherein the fleece material has a thickness from 0.1 ...

ELECTRODE WITH INTEGRATED CERAMIC SEPARATOR

An electrode including an integrated separator for use in an electrochemical device may include one or more active material layers, and a separator layer comprising inorganic particles. An interlocking region may couple the separator layer to an adjacent active material layer. In some examples, the interlocking region may include interlocking fingers formed by an interpenetration of active material particles of the active material layers with ceramic particles of the separator. 1. A method of manufacturing an electrode including an integrated separator layer , the method comprising:causing relative motion between an active material composite dispenser and a current collector substrate on which is disposed a first layer of active material composite, wherein the first layer includes a plurality of first active material particles and a first binder, the first active material particles having a first average particle size and a first viscosity; andapplying a separator layer to the first layer of active material composite, using an orifice of the dispenser, the separator layer including a separator composite slurry having a plurality of ceramic particles and a second binder, the ceramic particles having a second average particle size;wherein applying the separator layer forms an interphase layer adhering the separator layer to the first layer of active material composite, the interphase layer including an interpenetration of the first layer and the separator layer in which first fingers of the first layer interlock with second fingers of the separator layer.2. The method of claim 1 , wherein the interphase layer has a third average particle size between the first average particle size and the second average particle size.3. The method of claim 1 , wherein causing the relative motion comprises moving the current collector substrate using a backing roll.4. The method of claim 1 , wherein the dispenser comprises a slot die coating head claim 1 , and the orifice is a slot of ...

Ultrasonic separation mechanism for storage batteries

An ultrasonic separation mechanism for storage batteries, having a separation workpiece and at least one ultrasonic vibrating element; the separation workpiece is provided with at least one interior chamber for the sealed installation of the at least one ultrasonic vibration element. The at least one ultrasonic vibrating element is installed in the at least one interior chamber, and a power supply wire extends through the at least one interior chamber and out of the separation workpiece. When the ultrasonic separation mechanism is applied between the positive and negative electrodes, the at least one ultrasonic vibrating element produces high frequency ultrasonic vibration which directly acts on the separation workpiece, creating an ultrasonic cavitation effect. 11213223431. An ultrasonic separation mechanism for storage batteries , comprising a separation workpiece () and at least one ultrasonic vibrating element (); the separation workpiece () is provided with at least one interior chamber () in which the at least one ultrasonic vibration element () is installed and sealed inside; said at least one ultrasonic vibrating element () is installed in the at least one interior chamber () , and a power supply wire () of the ultrasonic separation mechanism extends through the at least one interior chamber () and out of the separation workpiece ().211112111213131112131112313. The ultrasonic separation mechanism for storage batteries as in claim 1 , wherein the separation workpiece () is a plate-shaped separator formed by lamination claim 1 , adherence and sealing of a left separator plate () and a right separator plate (); opposing sides of the left separator plate () and the right separator plate () are each provided with at least one recessed slot (); each pair of corresponding recessed slots () on the left separator plate () and the right separator plate () are joined together wherein openings of the corresponding recessed slots () on the left separator plate () and the ...

Separator for lead acid storage battery

The separator includes: a microporous film having a thickness of from 0.1 to 0.3 mm as a base portion 3; plural main ribs 2a that are provided on one surface 3a of the base portion 3; and plural miniature ribs 2b that have a lower height than a height of the main ribs 2a and are provided on the other surface 3b of the base portion 3, and the plural miniature ribs 2b are provided in a linear form with an inter-rib distance P, which is a distance between facing surfaces of the adjacent miniature ribs 2b, of less than 1.9 mm.

Secondary battery and method for restoring capacity of secondary battery

An exterior body of a secondary battery includes an insertion portion for insertion of a third electrode including metal lithium. An injection and expelling portion through which an electrolyte solution can be replaced is further provided. Specifically, a nonaqueous secondary battery includes a positive electrode, a negative electrode, an electrolyte solution, a separator, and an exterior body covering the positive electrode, the negative electrode, and the electrolyte solution. The exterior body includes a positive electrode terminal to which the positive electrode is electrically connected, a negative electrode terminal to which the negative electrode is electrically connected, and an insertion portion for insertion of a third electrode including metal lithium.

Electrode Assembly and Method for Manufacturing the Same

An electrode assembly includes a separator, which is doubly sealed in a radical unit and a unit stack part to prevent short circuit occurring by contact between a positive electrode and a negative electrode due to contraction of the separator. The electrode assembly includes a unit stack part having a stacked structure including a plurality of radical units and an outer sealing part formed outside the unit stack part. Each of the radical unit is formed by alternately stacking electrodes and separators and includes a first inner sealing part in which a plurality of separators vertically stacked on the electrodes are sealed to each other on a side surface of each of the electrodes, and the outer sealing part is formed by sealing the separators of the plurality of radical units to each other outside the first inner sealing part. 1. An electrode assembly comprising:a unit stack part having a stacked structure comprising a plurality of radical units; andan outer sealing part formed outside the unit stack part,wherein each of the radical unit is formed by alternately stacking electrodes and separators and comprises a first inner sealing part in which a plurality of separators vertically stacked on the electrodes are sealed to each other on a side surface of each of the electrodes, andthe outer sealing part is formed by sealing the separators of the plurality of radical units to each other outside the first inner sealing part.2. The electrode assembly of claim 1 , wherein the first inner sealing part is sealed so that the separator remains outside the first inner sealing part claim 1 , andthe outer sealing part is formed by sealing the separator remaining outside the first inner sealing part.3. The electrode assembly of claim 1 , wherein the radical unit is a mono-cell in which a separator claim 1 , a first electrode claim 1 , a separator claim 1 , and a second electrode are stacked.4. The electrode assembly of claim 3 , wherein the first inner sealing part is formed by ...

Separator

A separator for an electrode plate of a plate-shaped electrode of a battery, particularly a lead-acid battery, comprising a separator pocket providing a receiving space for said electrode plate and including two separator sheets bearing on each other, which are welded to each other along their respective longitudinal sides and upper front sides, the welding seam interconnecting said upper front sides presenting an interruption, which forms a recess for a current-collecting lug disposed on the upper outer edge of the electrode plate to pass through, said welding seam, for forming a degasification opening, being interrupted in a rim portion adjacent to a longitudinal side, a second welding seam spaced from said welding seam being provided which is positioned directly vis-à-vis the degasification opening of the first welding seam. 1. A separator for an electrode plate of a plate-shaped electrode of a battery , particularly a lead-acid battery , comprising:a separator pocket providing a receiving space for said electrode plate and having two separator sheets bearing on each other, which are welded to each other along their respective longitudinal sides and upper front sides, the welding seam interconnecting the upper front sides presenting an interruption forming a recess for a current-collecting lug disposed on the upper outer edge of the electrode plate to pass through, wherein, the welding seam, for forming a degasification opening, is interrupted in a rim portion adjacent to one longitudinal side, a second welding seam spaced from said welding seam being provided and positioned directly vis-à-vis the degasification opening of the first welding seam.2. The separator according to claim 1 , wherein the first welding seam claim 1 , for forming an additional degasification opening claim 1 , is interrupted in a rim portion adjacent to the other longitudinal side.3. The separator according to claim 2 , wherein a third welding seam spaced from the first welding seam is ...

BATTERY AND BATTERY PACK

According to one embodiment, a battery includes an external container, an electrode group, and a sealing plate. The electrode group includes a positive electrode and a negative electrode wound in a flat shape with an insulating layer interposed therebetween. Thicknesses Tof the positive and negative electrodes are each from 0.03 mm to 0.08 mm. A first direction is orthogonal to a winding axis direction of the electrode group. A second direction is parallel to the winding axis direction. The thicknesses Tof each electrode, a thickness Tof the electrode group in the third direction orthogonal to the first and second directions, and an innermost circumferential height Hof the electrode group in the first direction satisfy 0.02≤(T×T)/H≤0.04. 1. A battery comprising:an external container comprising a bottom wall and a lateral wall extending from the bottom wall in a first direction, the external container being provided with an opening portion opposing the bottom wall;an electrode group comprising a positive electrode, a negative electrode, and an insulating layer, the positive electrode and the negative electrode being wound in a flat shape with the insulating layer interposed therebetween, and the electrode group being housed within the external container such that a winding axis direction is orthogonal to the first direction; anda sealing plate attached to the opening portion of the external container,{'sub': 'E', 'a thickness of the positive electrode and a thickness of the negative electrode being equal to or different from each other, and a thickness Tof each electrode being from 0.03 mm to 0.08 mm, and'}{'sub': E', 'W', 'IC, 'claim-text': {'br': None, 'i': T', '×T', 'H, 'sub': E', 'W', 'IC, '0.02≤()/≤0.04\u2003\u2003(1).'}, 'taking a direction parallel to the winding axis direction as a second direction and taking a direction orthogonal to the first direction and the second direction as a third direction, the thickness T(mm) of the electrode, a thickness T(mm) of ...

Water addition plug for storage battery

Provided is a water addition plug for a storage battery, which is for carrying out water addition into a container of the storage battery. The water addition plug comprising a water addition plug main body having a water supply port through which the water is supplied, a water addition port through which the supplied water is discharged into the container, and a valve chest disposed between the water supply port and the water addition port and provided with a first valve and a second valve and a float that moves up and down following an electrolyte level in the container. The first valve comprises a first drain port, which is open to the valve chest and communicates with the water addition port, and a first valve element for closing the first drain port in synchronization with a vertical movement of the float. The second valve comprises a second drain port, which is open to the valve chest and communicates with the water addition port, and a second valve element for closing the second drain port.

MULTI-REGION BATTERY SEPARATORS

Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries. 1. A battery separator , comprising:a middle fiber region;a first peripheral fiber region; anda second peripheral fiber region; (a) from about 1 to 50% by weight fibers having an average diameter from about 0.1 to less than 2 μm, or', '(b) from about 1 to about 40% by weight silica, or', '(c) from about 1 to about 40% by weight fibers having an average diameter from about 0.1 to less than 2 μm, and from about 1 to about 20% by weight silica;, 'fibers having an average diameter from 2 to about 50 μm; and'}, 'wherein the middle fiber region compriseswherein each of the first and second peripheral fiber regions independently comprises glass fibers having an average diameter from about 0.1 to about 2 μm;provided that the average diameter of the fibers of the middle fiber region is larger than the average diameter of the fibers of each of the first and second peripheral fiber regions;wherein the middle fiber region is disposed between the first peripheral fiber region and the second peripheral fiber region; andwherein the thickness of the middle fiber region constitutes 1-49% of the total fiber region thickness.2. The battery separator according to claim 1 , wherein the middle fiber region comprises glass fibers having an average diameter from 2 to about 50 μm.3. The battery separator according to claim 1 , wherein the middle fiber region comprises fibers having an average diameter from about 3 to about 15 μm.4. ...

Pressure sensitive adhesive composition, pressure sensitive adhesive sheet for batteries, and lithium-ion battery

[Problems] An object is to provide a pressure sensitive adhesive composition, a pressure sensitive adhesive sheet for batteries, and a lithium-ion battery in which the pressure sensitive adhesive is less likely to dissolve into an electrolyte solution even when the pressure sensitive adhesive sheet is in contact with the electrolyte solution. [Solution] A battery ( 2 ) comprising a pressure sensitive adhesive sheet ( 1 ), wherein: the pressure sensitive adhesive sheet is used at a site in the battery at which there is a possibility of contact with an electrolyte solution; the pressure sensitive adhesive sheet comprises a base material ( 11 ) and a pressure sensitive adhesive layer ( 13 ) laminated at one side of the base material; and the pressure sensitive adhesive layer is formed of a pressure sensitive adhesive composition comprising: a (meth)acrylic ester polymer containing a monomer having a carboxy group in a molecule as a monomer unit that constitutes the polymer; and a metal chelate-based crosslinker.

ELECTRODE ASSEMBLY PREVENTING INTERNAL SHORT, SECONDARY BATTERY COMPRISING THE SAME, BATTERY MODULE AND BATTERY PACK

An exemplary embodiment in the present disclosure relates to an electrode assembly capable of suppressing the occurrence of a short of a battery including an insulation film, a secondary battery including the electrode assembly, a battery module, and a battery pack. The electrode assembly includes an electrode laminate in which a cathode and an anode are alternately stacked with a separator as a boundary, a porous insulation film surrounding four or more sides of the electrode laminate, in which two of both ends of the insulation film are adhered on a side surface of the electrode laminate. 1. An electrode assembly , comprising:an electrode laminate in which a cathode and an anode are alternately stacked with a separator as a boundary; and a porous insulation film surrounding four or more sides of the electrode laminate,wherein both ends of the insulation film are adhered on a side surface of the electrode laminate.2. The electrode assembly of claim 1 , wherein the insulation film is adhered by contacting an outer surface of one end with an inner surface of the other end on one side of the electrode laminate.3. The electrode assembly of claim 1 , wherein the insulation film surrounds four or more sides including two electrode active surfaces and two side surfaces of the electrode laminate.4. The electrode assembly of claim 1 , wherein the adhesion is adhesion by an adhesive or adhesion by heat.5. The electrode assembly of claim 1 , wherein the insulation film includes a binder layer in which an adhesive binder is deposited on an inner surface claim 1 , and is attached to a surface of the electrode assembly.6. The electrode assembly of claim 1 , wherein the insulation film surrounds six sides of the electrode laminate claim 1 , and has a rectangular body portion surrounding two electrode active surfaces and two side surfaces and a side cover part extending from a side surface of the body portion to surround the remaining two side surfaces.7. The electrode assembly of ...

Lithium ion secondary battery

A lithium ion secondary battery including a plurality of electrode laminates, each electrode laminate including a positive electrode, a separator, and a negative electrode being alternatively laminated, each positive electrode and negative electrode having respective positive and negative electrode tabs protruding from a respective line segment, the positive electrode tabs of adjacent electrode laminates face each other and are connected to each other to provide a positive electrode tab bundle and the negative electrode tabs of the adjacent electrode laminates face each other and are connected to each other to provide a negative electrode tab bundle.

Cathode sheet and lithium ion electric roll using the same

The present application relates to the filed of energy storage devices, and in particular, relates to a cathode sheet and a lithium ion electric roll using the cathode sheet. The cathode sheet comprises a cathode current collector, an active substance layer, a cathode tab, a head protective adhesive, a tail protective adhesive, an ending adhesive, and an anti-puncture cushion. The cathode current collector comprises a head exposed zone, a head adhesive application zone, a coating zone, a tail adhesive application zone, and a tail exposed zone. The active substance layer covers the coating zone, the head protective adhesive covers the head adhesive application zone, the tail protective adhesive covers the tail adhesive application zone, the ending adhesive is bonded to a tail of the tail exposed zone, and the anti-puncture cushion is connected to the tail exposed zone.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY COMPRISING SAME

The present invention relates to an electrode assembly and a secondary battery comprising same, wherein an insulator formed on a separator can prevent burrs, which may occur on a positive or negative electrode tab formed by blanking, from penetrating the separator, thereby improving electric stability, and a longitudinal end and a corner portion have increased insulation thicknesses such that, by enhancing cushion functions, same may be advantageous in terms of short-circuiting protection. As an example, the present invention provides an electrode assembly and a secondary battery comprising same, the electrode assembly comprising: a positive-electrode collector; a positive-electrode plate having a positive-electrode active material and a positive-electrode tab protruding from a longitudinal end thereof, the positive-electrode active material being formed to cover a part of the positive-electrode collector, and the positive-electrode tab being a positive-electrode uncoated portion having no positive-electrode active material formed thereon; a negative-electrode collector; a negative-electrode plate having a negative-electrode active material and a negative-electrode tab protruding from a longitudinal end thereof, the negative-electrode active material being formed to cover a part of the negative-electrode collector, and the negative-electrode tab being a negative-electrode uncoated portion having no negative-electrode active material formed thereon; and a negative-electrode plate. The separator has an insulator provided on a longitudinal end thereof so as to have a larger thickness than other areas thereof. 1. An electrode assembly comprising:a positive-electrode collector;a positive-electrode plate which has a positive-electrode active material and a positive-electrode tab protruding from a longitudinal end thereof, the positive-electrode active material being formed to cover a part of the positive-electrode collector, and the positive-electrode tab being a positive ...

LEAD-ACID BATTERY SEPARATORS WITH IMPROVED PERFORMANCE AND BATTERIES AND VEHICLES WITH THE SAME AND RELATED METHODS

Improved battery separators are disclosed herein for use in flooded lead-acid batteries, and in particular enhanced flooded lead-acid batteries. The improved separators disclosed herein provide for enhanced electrolyte mixing and substantially reduced acid stratification. The improved flooded lead-acid batteries may be advantageously employed in applications in which the battery remains in a partial state of charge, for instance in start/stop vehicle systems. Also, improved lead-acid batteries, such as flooded lead-acid batteries, improved systems that include a lead-acid battery and a battery separator, improved battery separators, improved vehicles including such systems, and/or methods of manufacture and/or use may be provided. 141-. (canceled)42. A battery separator comprising multiple zones of varying serrated , dimpled , and/or broken rib patterns on at least one side thereof.43. The battery separator of claim 42 , comprising three zones of varying serrated claim 42 , dimpled claim 42 , and/or broken rib patterns.44. The battery separator of claim 42 , comprising more than three zones of varying serrated claim 42 , dimpled claim 42 , and/or broken rib patterns.45. The battery separator of claim 42 , wherein each zone comprises two or more rows of serrated claim 42 , dimpled claim 42 , and/or broken ribs claim 42 , wherein the rows are machine-direction rows or cross-machine direction rows.46. The battery separator of claim 42 , wherein the zones change in a lateral direction along a cross-machine direction of the separator or change in a machine direction of the separator.47. The battery separator of claim 46 , wherein the zones change in the lateral direction along a cross-machine direction of the separator.48. The battery separator of claim 46 , wherein the zones change in a machine direction of the separator.49. The battery separator of claim 42 , comprising zones of varying broken ribs.50. The battery separator of wherein one or more of the ribs are ...

Flexible electrode assembly and electrochemical device including the same

An electrode assembly includes at least one first electrode plate; at least one second electrode plate facing the at least one first electrode plate; a first separation film of which a surface thereof is bonded to the at least one first electrode plate which faces the at least one second electrode plate; and a second separation film of which a surface thereof is bonded to the at least one second electrode plate which faces the at least one first electrode plate. The first separation film and the second separation film of which surfaces thereof are bonded to the first electrode plate and the second electrode plate, are disposed between the first and second electrode plates facing each other.

BATTERY STATE ESTIMATION DEVICE AND METHOD OF ESTIMATING BATTERY STATE

A battery state estimation device includes a detecting part, a state of charge (SOC) estimating part, an open circuit voltage (OCV) estimating part, a terminal voltage estimating part, and a correcting part. The detecting part detects a charge-discharge current and a terminal voltage of a battery. The SOC estimating part estimates an SOC of the battery, based on the charge-discharge current detected by the detecting part. The OCV estimating part estimates an OCV of the battery, based on the SOC estimated by the SOC estimating part and a relationship between an OCV and the SOC of the battery. The terminal voltage estimating part calculates an estimated terminal voltage, based on the charge-discharge current and the terminal voltage detected by the detecting part and on an equivalent circuit model constructed using an inversely proportional curve. The correcting part corrects the SOC estimated by the SOC estimating part, based on the estimated terminal voltage calculated by the terminal voltage estimating part and the terminal voltage detected by the detecting part. 1. A battery state estimation device comprising:a detecting part for detecting a charge-discharge current and a terminal voltage of a battery;a state-of-charge (SOC) estimating part for estimating a SOC of the battery, based on the charge-discharge current detected by the detecting part;an open-circuit voltage (OCV) estimating part for estimating an OCV of the battery, based on the SOC estimated by the SOC estimating part and on a relationship between an OCV and the SOC of the battery;a terminal voltage estimating part for calculating an estimated terminal voltage, based on the charge-discharge current and the terminal voltage detected by the detecting part and on an equivalent circuit model constructed using an inversely proportional curve; anda correcting part for correcting the SOC estimated by the SOC estimating part, based on the estimated terminal voltage calculated by the terminal voltage estimating ...

BATTERY SEPARATORS WITH CROSS RIBS AND RELATED METHODS

A separator for a lead acid battery is a porous membrane having a positive electrode face and a negative electrode face. A plurality of longitudinally extending ribs, a plurality of protrusions or a nonwoven material may be disposed upon the positive electrode face. A plurality of transversely extending ribs are disposed upon the negative electrode face. The transverse ribs disposed upon the negative electrode face are preferably juxtaposed to a negative electrode of the lead acid battery, when the separator is placed within that battery. 119-. (canceled)20. A separator for a lead acid battery comprising:a porous membrane having a positive electrode face and a negative electrode face;a plurality of longitudinally extending ribs being disposed upon said positive electrode face; anda plurality of substantially transversely extending ribs being disposed upon said negative electrode face,wherein said transverse ribs disposed upon said negative electrode face being adapted to be juxtaposed to a negative electrode, when the separator is placed within the lead acid battery, wherein the transversely extending ribs are discontinuous and include a plurality of longitudinally extending fissures, channels, recesses, or openings.21. The separator of wherein the transversely extending ribs are shorter and more closely spaced than the longitudinally extending ribs.22. The separator of wherein the transversely extending ribs and the longitudinally extending ribs are formed by calender roll molding.23. The separator of wherein the separator is one of a macroporous membrane and a microporous membrane.24. The separator of wherein the separator is a polyethylene microporous membrane.25. In a separator for a lead acid battery having a porous backweb with a first surface and a second surface claim 23 , the improvement comprising: a plurality of transverse ribs being disposed upon the second surface of the backweb claim 23 , wherein the transversely extending ribs are discontinuous and ...

Surface activation in electrode stack production and electrode-preparation systems and methods

Methods, stacks and electrochemical cells are provided, in which the cell separator is surface-treated prior to attachment to the electrode(s) to form binding sites on the cell separator and enhance binding thereof to the electrode(s), e.g., electrostatically. The cell separator(s) may be attached to the electrode(s) by cold press lamination, wherein the created binding sites are configured to stabilize the cold press lamination electrostatically—forming flexible and durable electrode stacks. Electrode slurry may be deposited on a sacrificial film and then attached to current collector films, avoiding unwanted interactions between materials and in particular solvents involved in the respective slurries. Dried electrode slurry layers may be pressed or calendared against each other to yield thinner, smother and more controllably porous electrodes, as well as higher throughput. The produced stacks may be used in electrochemical cells and in any other type of energy storage device.

BATTERY COMPONENTS COMPRISING FIBERS

Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength. 1. A battery component , comprising:a plurality of fine glass fibers having an average fiber diameter of less than 2 microns, wherein the plurality of fine glass fibers are present in an amount greater than or equal to 30 wt % and less than or equal to 60 wt % versus the total weight of the battery component;a plurality of coarse glass fibers having an average fiber diameter of greater than or equal to 2 microns, wherein the plurality of coarse glass fibers are present in an amount greater than or equal to 30 wt % and less than or equal to 60 wt % versus the total weight of the battery component;a plurality of fibrillated fibers present in an amount greater than or equal to 1 wt % and less than or equal to 15 wt % versus the total weight of the battery component;a resin present in an amount greater than or equal to 1 wt % and less than or equal to 10 wt % versus the total weight of the battery component; anda plurality of bicomponent fibers present in an amount of greater than 0 wt % and less than or equal to 8 wt % versus the total weight of the battery component.2. A battery component , comprising:a plurality ...

BATTERY SEPARATORS HAVING A LOW APPARENT DENSITY

In some embodiments, a battery separator described herein may comprise a layer having a relatively low apparent density; for example, the density that includes any unoccupied space within the outermost boundaries of the layer may be relatively low. The low apparent density may be attributed to, at least in part, the geometry of the layer. For instance, in some embodiments, the layer may include undulations and/or have at least one non-planar surface (e.g., a corrugated layer; an embossed layer). In some embodiments, a battery comprising a layer having a relatively low apparent density may have desirable properties, including relatively low electrical resistance and/or relatively high capacity. The battery separators described herein may be well suited for a variety of battery types, including lead acid batteries. 1. A battery separator , comprising:a non-woven web comprising:a plurality of glass fibers having an average diameter of greater than or equal to about 0.1 microns and less than or equal to about 15 microns, wherein the glass fibers are present in an amount of greater than or equal to about 2 wt. % and less than or equal to about 95 wt. % of the non-woven web;a plurality of synthetic fibers, wherein the synthetic fibers are present in the non-woven web in an amount of greater than or equal to about 1 wt. % and less than or equal to about 80 wt. % of the non-woven web; anda plurality of inorganic particles, wherein the inorganic particles are present in an amount of greater than or equal to about 10 wt. % and less than or equal to about 80 wt. % of the non-woven web,{'sup': 2', '2, 'wherein the apparent density of the battery separator is greater than or equal to about 40 g/m/mm and less than or equal to about 300 g/m/mm.'}2. A battery separator , comprising: a plurality of glass fibers having an average diameter of greater than or equal to about 0.1 microns;', 'a plurality of synthetic fibers, wherein the synthetic fibers are present in an amount of greater ...

Lithium ion secondary battery

A lithium ion secondary battery includes: a positive electrode mixture layer provided on a main plane of a positive electrode current collector; and an insulator covering a part of a surface of a gradually-decreasing portion included in the positive electrode mixture layer. A first region is smaller than a second region on a cross-section of the lithium ion secondary battery that is orthogonal to the main plane, the first region being defined by a perpendicular line to the main plane passing a contact point between the surface of the gradually-decreasing portion and an end of the insulator, the main plane, and the surface of the gradually-decreasing portion, and the second region being defined by an orthogonal line orthogonal to the perpendicular line and in contact with an upper surface of the positive electrode mixture layer on a plane including the cross-section, the perpendicular line, and the surface of the gradually-decreasing portion.

Flexible and Shape-Conformal Rope-Shape Alkali Metal Batteries

Provided is a rope-shaped alkali metal battery comprising: (a) a first electrode comprising a first conductive porous rod having pores and a first mixture of a first electrode active material and a first electrolyte residing in the pores of the first porous rod; (b) a porous separator wrapping around or encasing the first electrode to form a separator-protected first electrode; (c) a second electrode comprising a second conductive porous rod having pores and a second mixture of a second electrode active material and a second electrolyte residing in the pores of the second porous rod; wherein the separator-protected first electrode and second electrode are combined to form a braid or a yarn having a twist or spiral electrode; and (d) a protective casing or sheath wrapping around or encasing the braid or yarn.

BATTERY CELL AND ELECTRONIC DEVICE

The present application relates to a battery cell and an electronic device. The battery cell according to an embodiment comprises: an electrode assembly, including an electrode plate; and a shell, receiving the electrode assembly and including a first edge seal, a second edge seal and a circular edge seal connecting the first edge seal and the second edge seal, wherein the circular edge seal defines a virtual circular arc region with a radius R and a radian angle Ø, wherein the electrode plate has a first edge, a second edge, and a third edge connecting the first edge and the second edge, and a virtual extension line of the first edge and a virtual extension line of the second edge intersect to form a virtual intersection point A; a point on the third edge has a minimum distance L relative to the virtual intersection point A; and the virtual extension lines of the first edge and the second edge form a corner at the virtual intersection point A toward the third edge, and an angle of the corner is greater than 0 degrees and less than 180 degrees. The battery cell and the electronic device provided by the present application have higher safety performance, a higher space utilization ratio and a higher energy density. 1. A battery cell , comprising:an electrode assembly, including an electrode plate; anda shell, receiving the electrode assembly and including a first edge seal, a second edge seal and a circular edge seal connecting the first edge seal and the second edge seal, wherein the circular edge seal defines a virtual circular arc region with a radius R and a radian angle Ø, wherein,the electrode plate has a first edge, a second edge and a third edge connecting the first edge and the second edge, and a virtual extension line of the first edge and a virtual extension line of the second edge intersect to form a virtual intersection point A;a point on the third edge has a minimum distance L relative to the virtual intersection point A; andthe virtual extension line ...

BATTERY SEPARATORS FOR E-RICKSHAW AND SIMILAR VEHICLE LEAD ACID BATTERIES

Disclosed herein are novel or improved separators, battery separators, lead battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, lead battery separators, cells, and/or batteries. In accordance with at least certain embodiments, the present disclosure or invention is directed to novel or improved battery separators for lead acid batteries. In addition, disclosed herein are methods, systems and battery separators for enhancing battery life, reducing active material shedding, reducing grid and spine corrosion, reducing failure rate reducing acid stratification and/or improving uniformity in at least lead acid batteries, in particular batteries for electric rickshaws. In accordance with at least particular embodiments, the present disclosure or invention is directed to an improved separator for lead acid batteries wherein the separator includes improved membrane profiles, improved coatings, improved configurations, and/or the like. 1. An improved separator for use in a battery for an electric rickshaw comprising: [{'sup': '2', 'an additive at a density from about 4.0-10.0 g/m;'}, 'cross ribs having a height from about 0.075-0.15 mm;', 'longitudinal ribs having a height from about 0.075-0.15 mm;', 'a backweb thickness of about 0.20-0.35 mm; and optionally', 'a fibrous layer on at least one face of the porous membrane, the separator having a total thickness of about 0.425-3.0 mm, the separator or membrane being a piece, sleeve, wrap, pocket, or envelope, and/or the separator or membrane having one or more slits or openings., 'a porous membrane comprising'}2. The separator according to claim 1 , wherein the porous membrane is a microporous membrane.3. The separator according to claim 1 , wherein the membrane comprises polyethylene.4. The separator according to claim 3 , wherein the membrane comprises ultrahigh molecular weight polyethylene.5. The separator according to claim 1 , wherein the additive is a ...

Secondary battery, apparatus for manufacturing the same, and method of manufacturing the same

A secondary battery includes a first electrode assembly comprising a first separator in a serpentine form and first and second electrode plates that are respectively located on two surfaces of the first separator at different positions; and a second electrode assembly comprising a second separator in a serpentine form and third and fourth electrode plates that are respectively located on the second separator at different positions, wherein the first separator, to which the first and second electrode plates are combined, is bent with respect to ends of the first and second electrode plates so that the portion of the first separator is located on the second separator, and the second separator, on which the third and fourth electrode plates are combined, is bent with respect to ends of the third and fourth electrode plates so that the portion of the second separator is located on the first separator.

Lithium Secondary Battery

Embodiments of the present invention provide a lithium secondary battery including anode active material layers which have a multi-layered structure and include carbon-based active materials having different contents from each other, thereby improving mechanical stability and battery performance. 1. A lithium secondary battery comprising:a cathode;a separation membrane; andan anode which faces the cathode with the separation membrane interposed therebetween, and comprises an anode current collector, a first anode active material layer and a second anode active material layer which are sequentially stacked from the anode current collector,wherein the first anode active material layer includes a silicon-based active material and a carbon-based active material, and the second anode active material layer includes a carbon-based active material or a mixture of the carbon-based active material and the silicon-based active material, andwhen the second anode active material layer includes the mixture, a content of the silicon-based active material in the second anode active material layer is lower than a content of the silicon-based active material in the first anode active material layer.2. The lithium secondary battery according to claim 1 , wherein a content of the silicon-based active material in the first anode active material layer is 2 to 15% by weight based on a weight of the carbon-based active material included in the first anode active material layer.3. The lithium secondary battery according to claim 1 , wherein a content of the silicon-based active material in the second anode active material layer is 0.1 to 5% by weight based on a weight of the carbon-based active material included in the second anode active material layer.4. The lithium secondary battery according to claim 1 , wherein the carbon-based active material includes artificial graphite or natural graphite.5. The lithium secondary battery according to claim 1 , wherein the carbon-based active ...

IMPROVED FLOODED LEAD ACID BATTERIES UTILIZING AN IMPROVED SEPARATOR WITH A FIBROUS MAT, AND METHODS AND SYSTEMS USING THE SAME

A flooded lead acid battery and a vehicle comprising the same are described herein. The flooded lead acid battery comprises an electrode array, comprising one or more negative plates and one or more positive plates alternately arranged and interleafed with one another. In some embodiments, a negative plate is wrapped or enveloped with a fibrous mat, and a porous membrane is wrapped or enveloped about an adjacent positive electrode. In some embodiments, a fibrous mat is at least partially integrated into a negative plate, and a porous membrane is enveloped about either the negative plate with the fibrous mat partially integrated therein or around an adjacent positive plate. In other embodiments, a negative plate is enveloped with a porous membrane having ribs, and a fibrous mat is present between the wrapped negative plate and the porous membrane enveloping the negative plate. Methods, systems, and vehicles utilizing the disclosed batteries are also provided. 20. The lead acid battery of claim , wherein said fibrous mat envelope:is one of the list consisting of a nonwoven, mesh, fleece, and combinations thereof;is formed from a polymer and additionally with one or more of the group consisting of glass fibers, pulp, and combinations thereof;is formed from a polymer and additionally with one or more of the group consisting of glass fibers, pulp, and combinations thereof, said polymer comprising one or more material selected from the group consisting of a polyolefin, a polyester, a polyamide, a polyimide, and combinations thereof;comprises an inorganic material;comprises an inorganic material, wherein said inorganic material comprises silica;comprises a spun-bond melt-nonwoven composite material;comprises a carbon fiber nonwoven material;comprises a carbon fiber nonwoven material, wherein said carbon fiber nonwoven material comprises conductive carbon, graphite, artificial graphite, activated carbon, acetylene black, carbon black, high surface area carbon black, ...

ELECTROCHEMICAL DEVICE

The present application relates to an electrochemical device. The electrochemical device includes: at least one electrode, the at least one electrode having a first surface; and a fiber coating layer, the fiber coating layer including a fiber and being disposed on the first surface. The electrochemical device has the advantages of high energy density, strong liquid retention ability, good drop resistance, good chemical stability and the like since its fiber coating layer has small thickness, high porosity and stronger interfacial adhesion to the electrode. 1. An electrochemical device , comprising:at least one electrode having a first surface; anda fiber coating layer, the fiber coating layer comprising fibers and being disposed on the first surface.2. The electrochemical device according to claim 1 , wherein the adhesion of the fiber coating layer to the first surface is 2 N/m to 100 N/m.3. The electrochemical device according to claim 1 , wherein the fibers comprise a first fiber and a second fiber claim 1 , a diameter of the first fiber being less than a diameter of the second fiber claim 1 , and the first fiber being adjacent to the first surface.4. The electrochemical device according to claim 3 , wherein the first fiber has the diameter of 10 nm to 2 μm claim 3 , and the second fiber has the diameter of 20 nm to 5 μm.5. The electrochemical device according to claim 1 , wherein the fiber coating layer comprises a first porous layer and a second porous layer; an average pore diameter of the first porous layer being less than an average pore diameter of the second porous layer; and the first porous layer being adjacent to the first surface.6. The electrochemical device according to claim 5 , wherein the first porous layer has the average pore diameter of 20 nm to 5 μm; and the second porous layer has the average pore diameter of greater than 20 nm and less than or equal to 10 μm.7. The electrochemical device according to claim 5 , further comprising a third ...

ELECTRODE ASSEMBLY AND BATTERY

An electrode assembly including a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate. The separator includes an extension portion extending to the outside of the first electrode plate and the second electrode plate in a length direction of the electrode assembly. The extension portion is provided with a glue layer including a first bonding portion extending in a width direction of the electrode assembly. The first bonding portion is parallel to the width direction. 1. An electrode assembly , comprising: a first electrode plate , a second electrode plate , and a separator disposed therebetween;wherein the separator comprises an extension portion extending beyond the first electrode plate and the second electrode plate in a length direction of the electrode assembly; and the extension portion is provided with a glue layer, and the glue layer is configured in a wave structure in a width direction of the electrode assembly.2. The electrode assembly according to claim 1 , wherein the glue layer comprises a first bonding portion extending in the width direction of the electrode assembly claim 1 , and bonded to the extension portion.3. The electrode assembly according to claim 2 , wherein in a thickness direction of the electrode assembly claim 2 , the extension portion comprises a first layer and a second layer; the first layer and the second layer are disposed on the outermost sides of the separator respectively claim 2 , and the first bonding portion is disposed on the first layer.4. The electrode assembly according to claim 3 , wherein the glue layer further comprises a second bonding portion extending in the width direction of the electrode assembly claim 3 , and the second bonding portion is disposed on the second layer and bonded to the extension portion.5. The electrode assembly according to claim 3 , wherein in the thickness direction of the electrode assembly claim 3 , the extension ...

BATTERY TERMINAL

Disclosed is a lead acid battery including a housing having an exterior. The battery also includes a lead terminal extending through the housing to the exterior of the housing. A coating covers the lead terminal such that there is no exposed lead exterior to the housing. 1. A lead acid battery comprising:a housing having an exterior;a lead terminal extending through the housing to the exterior of the housing; anda coating covering the lead terminal such that there is no exposed lead exterior to the housing.2. The lead acid battery of claim 1 , wherein the coating is selected from the group consisting of tin claim 1 , zinc claim 1 , brass claim 1 , copper claim 1 , stainless steel claim 1 , nickel claim 1 , and alloys thereof3. The lead acid battery of claim 1 , wherein the coating includes an arc-sprayed conductive coating comprising zinc or tin.4. The lead acid battery of claim 1 , wherein the lead terminal comprises a concave depression on a top surface thereof5. The lead acid battery of claim 4 , wherein the coating comprises a conductive coating portion and a non-conductive coating portion claim 4 , wherein the non-conductive coating portion is provided in the concave depression.6. The lead acid battery of claim 5 , wherein the non-conductive coating portion includes a coating selected from the group consisting of epoxy resin and polymer.7. The lead acid battery of claim 5 , wherein the non-conductive coating portion is provided on the sides of the lead terminal.8. The lead acid battery of claim 1 , wherein the lead terminal is a positive terminal claim 1 , wherein the lead acid battery further comprises a negative terminal.9. The lead acid battery of claim 8 , wherein the positive terminal includes a first coating claim 8 , and the negative terminal includes a second coating.10. The lead acid battery of claim 9 , wherein the first and second coatings are different materials.11. The lead acid battery of claim 1 , further comprising a battery element and a strap ...

Wrapping electrode assembly and method for manufacturing the same

A wrapping electrode assembly for use in a secondary battery manufactured by an electrode-stacking method includes: an electrode plate which has a coating layer of an electrode active material and a non-coated protruding portion, the electrode active material being capable of reversibly inserting and extracting lithium ions; first and second separator films which cover both surfaces of the electrode plate while exposing only the non-coated protruding portion; and an insulating polymer film which is positioned between the first separator film and the second separator film at least on a portion of a circumference of the electrode plate to be bonded to the first separator film and the second separator film, wherein the insulating polymer film is formed as being divided into at least two parts.

Electronic device with secondary battery

In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery that is durable even when force is externally applied thereto is provided. A region that is easily partly bent and a region that is not easily partly bent owing to a protective material provided in the region are intentionally formed to obtain the durable secondary battery.

Electrolyte batteries

The invention relates to an electrolyte battery electrode component having a layer having a surface adjoined by electrolyte in the battery and provided with a fluid-conducting channel structure. In this context, it is envisaged that through the fluid-conducting structure has channels having channel depths in the range from 10 to 200 μm and/or at least 50% of the thickness of the active layer.

SPILL RESISTANT BATTERY COVER AND VENT COVER

A vented battery cover with a vent cover is disclosed. The vent cover may be capable of attachment to the battery at a first position and a second position using one or more first snap features and one or more second snap features. The vent cover may also provide a fluid path from a fill tube hole in the battery cover to a vent wherein the path is a labyrinth. 1. A battery , comprising:one or more fill tube holes defined by a battery cover;a vent cover aligned adapted to align with the one or more fill tube holes;one or more first snap features;one or more second snap features; andone or more recesses;wherein each one or more first snap features is adapted to mate with a recess when the vent cover is installed on the battery to a first position; andwherein each one or more second snap features is adapted to mate with a recess when the vent cover is installed on the battery to a second position.2. The battery of wherein the one or more first snap features are located on the vent cover and the one or more recesses are located on the battery cover.3. The battery of wherein the one or more second snap features are provided on the vent cover and the one or more recesses are provided on the battery cover.4. The battery of wherein claim 3 , when the vent cover is in the second position claim 3 , the one or more first snaps extend beyond the one or more recesses mated by the one or more first snaps when the vent cover is in the first position.5. The battery of wherein a top surface of the vent cover is substantially flush with at least a portion of a top surface of the battery cover when the vent cover is in the second position.6. The battery of wherein the one or more first snap features and one or more second snap features mate to the one or more recesses to allow the vent cover to be installed onto and removed from the battery cover.7. The battery of claim 1 , further comprising a leak resistant seal between an inner volume of the battery and the environment.8. The ...

BATTERY ELECTROLYTE LEVEL DEVICE

An electrolyte level measuring device for a vented lead acid battery and a method of monitoring an electrolyte level is provided. The measuring device includes an elongated body. A stop member extends outwardly from the elongated body, the stop member being sized larger than an opening in the vented lead acid battery. At least one projection extends orthogonally from the elongated body. 1. An electrolyte level measuring device for a vented lead acid battery , the device comprising:an elongated body;a stop member extending outwardly from the elongated body, the stop member being sized larger than an opening in the vented lead acid battery; andat least one projection extending orthogonally from the elongated body.2. The device of claim 1 , wherein the stop member is offset from a first end of the elongated body.3. The device of claim 2 , wherein the at least one projection is positioned adjacent a second end of the elongated body claim 2 , the second end being opposite the first end.4. The device of claim 3 , wherein the at least one projection includes a first projection and a second projection claim 3 , the first projection being disposed at the second end claim 3 , the second projection being positioned between the first projection and the stop member.5. The device of claim 3 , wherein the at least one projection includes a first projection and a second projection disposed on opposite sides of the elongated body at the second end.6. The device of claim 5 , wherein the at least one projection includes a third projection and a fourth projection disposed on opposite sides of the elongated body claim 5 , the third projection and the fourth projection being positioned between the second end and the stop member.7. The device of claim 1 , wherein the stop member has a cylindrical shape.8. The device of claim 7 , wherein the elongated body has a rectangular cross-section in a plane parallel with a surface of the stop member.9. The device of claim 1 , wherein the at least ...

BATTERY PARTS HAVING RETAINING AND SEALING FEATURES AND ASSOCIATED METHODS OF MANUFACTURE AND USE

Battery parts having retaining and sealing features and associated assemblies and methods are disclosed herein. In one embodiment, a battery part includes a base portion that is configured to be embedded in battery container material of a corresponding battery container. The battery part and base portion include several torque resisting features and gripping features that resist torsional or twist loads that are applied to the battery part after it has been joined to the battery container. For example, the base portion can include several internal and external torque resisting features and gripping features that are configured to resist twisting or loosening of the battery part with reference to the battery container material, as well as prevent or inhibit fluid leakage from the battery container. 121-. (canceled)21. A battery terminal bushing , comprising:a base portion configured to be at least partially embedded in battery container material;a lug portion extending from the base portion;a through-hole extending through the base portion and the lug portion; anda torque resisting flange extending outwardly from the base portion, wherein the torque resisting flange comprises a plurality of recesses extending radially inward, and wherein at least one of the recesses includes a U-shaped configuration having a first beveled sidewall opposite a second beveled sidewall.22. The battery terminal bushing of wherein the U-shaped configuration of the at least one recess opens in a direction away from the lug portion.23. The battery terminal bushing of wherein the first beveled sidewall and the second beveled sidewall converge in a direction away from the lug portion.24. The battery terminal bushing of wherein the plurality of recesses includes:a plurality of first recesses having a first shape; anda plurality of second recesses having a second shape different than the first shape.25. The battery terminal bushing of wherein each of the first recesses has an upside down U- ...