УСОВЕРШЕНСТВОВАННЫЕ МЕМБРАНЫ, КАЛАНДРИРОВАННЫЕ МИКРОПОРИСТЫЕ МЕМБРАНЫ, АККУМУЛЯТОРНЫЕ СЕПАРАТОРЫ И СООТВЕТСТВУЮЩИЕ СПОСОБЫ

Изобретение относится к новым или усовершенствованным микропористым одно- или многослойным аккумуляторным разделительным мембранам, сепараторам, батареям, включающим такие мембраны или сепараторы, способам изготовления таких мембран, сепараторов и/или батарей и/или способам применения таких мембран, сепараторов и/или батарей. Согласно изобретению способ изготовления многослойного полиэтилен/полипропилен/полиэтиленового микропористого сепаратора включает растяжение в продольном направлении с последующим растяжением в поперечном направлении и последующую стадию каландрирования как средство сокращения толщины многослойной микропористой мембраны для снижения относительной пористости многослойной микропористой мембраны в контролируемом режиме и/или для повышения прочности при растяжении в поперечном направлении. Техническим результатом являются превосходные характеристики механической прочности. 3 н. и 17 з.п. ф-лы, 4 табл., 42 ил.

АККУМУЛЯТОРНАЯ ЛИТИЕВАЯ БАТАРЕЯ, ИСПОЛЬЗУЮЩАЯ СЕПАРАТОР, ЧАСТИЧНО ПОКРЫТЫЙ ГЕЛЕОБРАЗНЫМ ПОЛИМЕРОМ

Изобретение относится к аккумуляторной литиевой батарее, использующей сепаратор, частично покрытый гелеобразным полимером, и сборке электрода, и к аккумуляторной литиевой батарее, содержащей их. Согласно изобретению сепаратор для батареи покрыт гелеобразным полимером на 40-60% от общей площади сепаратора. Техническим результатом является уменьшение сопротивления батареи, так что мощность батареи может быть улучшена. В дополнение к этому, сепаратор увеличивает скорость пропитки электролитом и обеспечивает однородную пропитку электролитом, тем самым улучшая время действия, емкость и свойства батареи при больших токах разряда. Кроме того, сепаратор делает возможным однородное осуществление электродных реакций, тем самым предотвращая осаждение лития и улучшая безопасность батареи. 3 н. и 3 з.п. ф-лы, 7 ил.

УСОВЕРШЕНСТВОВАННЫЕ МЕМБРАНЫ, КАЛАНДРИРОВАННЫЕ МИКРОПОРИСТЫЕ МЕМБРАНЫ, АККУМУЛЯТОРНЫЕ СЕПАРАТОРЫ И СООТВЕТСТВУЮЩИЕ СПОСОБЫ

Изобретение относится к усовершенствованным микропористым одно- или многослойным аккумуляторным разделительным мембранам, способам их изготовления. Техническим результатом является механическая прочность, повышенная производительность. Способ изготовления многослойной полиэтилен/полипропилен/полиэтиленовой микропористой мембраны включает растяжение в продольном направлении с последующим растяжением в поперечном направлении и последующую стадию каландрирования, как средство сокращения толщины многослойной микропористой мембраны, для снижения относительной пористости мембраны в контролируемом режиме и для повышения прочности при растяжении в поперечном направлении. Таким образом, получается тонкая многослойная микропористая мембрана, на которую легко наносятся полимер-керамические покрытия, которая имеет превосходные характеристики механической прочности благодаря ее внутреннему полипропиленовому слою и функцию термического отключения благодаря ее полиэтиленовым слоям. 6 н. и 9 з.п. ф-лы, ...

КОМПОЗИЦИОННОЕ ИЗДЕЛИЕ

Изобретение относится к композиционному изделию, способу его получения и применения, в частности для разделения газов. Композиционное изделие, содержащее на пористой подложке и в пустотах подложки, которая включает волокна, предпочтительно из неэлектропроводного материала, пористый слой 1, состоящий из частиц оксида, связанных между собой и частично с подложкой, которые включают по меньшей мере один оксид, выбранный из оксидов элементов Al, Zr, Ti и Si, предпочтительно выбранный из Al2O3, ZrO2, TiO2 и SiO2, и содержащее, по меньшей мере с одной стороны, дополнительный пористый слой 2, включающий частицы оксида, связанные между собой и частично со слоем 1, которые включают по меньшей мере один оксид, выбранный из оксидов элементов Al, Zr, Ti и Si, предпочтительно выбранный из Al2O3, ZrO2, TiO2 и SiO2, где частицы оксида, присутствующие в слое 1, имеют медианный размер частиц d50 от 0,5 до 4 мкм, а медианный размер частиц d50 частиц оксида в слое 2, составляет от 0,015 до 0,15 мкм, предпочтительно ...

ОРГАНИЧЕСКИЙ/НЕОРГАНИЧЕСКИЙ КОМПОЗИТНЫЙ РАЗДЕЛИТЕЛЬ, ИМЕЮЩИЙ ПОРИСТЫЙ АКТИВНЫЙ ПОКРЫВАЮЩИЙ СЛОЙ, И СОДЕРЖАЩЕЕ ЕГО ЭЛЕКТРОХИМИЧЕСКОЕ УСТРОЙСТВО

Изобретение относится к разделителю электрохимического устройства. Техническим результатом изобретения является предотвращение электрического короткого замыкания между электродами. Согласно изобретению органический/неорганический композитный разделитель включает (а) полиолефиновую пористую подложку, имеющую поры; и (b) пористый активный слой, содержащий смесь неорганических частиц и связующего полимера, которым покрыта, по меньшей мере, одна поверхность полиолефиновой пористой подложки, где данный пористый активный слой имеет силу отслаивания 5 гс/см или выше, и термическая усадка разделителя после его выдерживания при 150°С в течение 1 часа составляет 50% или меньше в машинном направлении (МН) или в поперечном направлении (ПН). 2 н. и 19 з.п. ф-лы, 2 ил., 1 табл, 4 пр.

ТЕРМОСТОЙКИЙ СЛОЙ ДЛЯ НЕВОДНОЙ И ТВЕРДОТЕЛЬНОЙ БАТАРЕИ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

... 1. Электрохимический элемент, содержащийанод, содержащий:проводящий слой; иактивный слой, нанесенный на проводящий слой;катод, содержащий:проводящий слой; иактивный слой, нанесенный на проводящий слой; итермостойкое покрытие на по меньшей мере одном из активного слоя анода и активного слоя катода, содержащее керамический материал, причем термостойкое покрытие присоединено к по меньшей мере одному из анода и катода благодаря пластической деформации частиц, которые образуют термостойкое покрытие, которая происходит во время сухого осаждения.2. Электрохимический элемент по п.1, при этом частицы в термостойком покрытии доставляются при высокой скорости к по меньшей мере одному из активного слоя анода и активного слоя катода для увеличения кинетической энергии частиц, частицы подвергаются пластической деформации и присоединяются к по меньшей мере одному из активного слоя анода и активного слоя катода при столкновении с по меньшей мере одним из активного слоя анода и активного слоя катода.3.

ТЕРМОСТОЙКАЯ МИКРОПОРИСТАЯ ПЛЕНКА ИЗ СИНТЕТИЧЕСКОЙ СМОЛЫ, СЕПАРАТОР ДЛЯ ВТОРИЧНОЙ БАТАРЕИ С НЕВОДНЫМ ЖИДКИМ ЭЛЕКТРОЛИТОМ, ВТОРИЧНАЯ БАТАРЕЯ С НЕВОДНЫМ ЖИДКИМ ЭЛЕКТРОЛИТОМ И СПОСОБ ПОЛУЧЕНИЯ ТЕРМОСТОЙКОЙ МИКРОПОРИСТОЙ ПЛЕНКИ ИЗ СИНТЕТИЧЕСКОЙ СМОЛЫ

Dreilagiger, mikroporöser Batterieseparator

Zweilagiger Batterieseparator mit Shutdown-Charakteristik

Galvanische Zelle mit verbesserter Lebensdauer

POLYMER FOLIE

Separator mit kraftschlüssig eingespannten Partikeln

Die vorliegende Erfindung betrifft einen Separator (10) für eine elektrochemische Zelle, insbesondere eine Lithium-Zelle, sowie ein entsprechendes Herstellungsverfahren. Um einen Separator mit einer erhöhten Dendriten-Resistenz zur Verfügung zu stellen, werden, insbesondere ionenleitende, Partikel (14) in Poren (12) einer Polymerschicht (11, 12) eingebracht und kraftschlüssig zwischen Poren (12) begrenzenden Polymerwänden (13) eingespannt. Darüber hinaus betrifft die Erfindung eine damit ausgestattete elektrochemische Zelle.

Separatormaterial für Speicherbatterien und Verfahren zu dessen Herstellung.

Separatormaterial für Speicherbatterien und Verfahren zu dessen Herstellung.

Elektrochemische Zelle

SEPARATOR FÜR ZYLINDRISCHE ZELLEN

Ionenleitender Batterieseparator für Lithiumbatterien, Verfahren zu deren Herstellung und die Verwendung derselben

Die Erfindung betrifft Separatoren für Lithiumbatterien sowie ein Verfahren zu deren Herstellung und deren Verwendung. DOLLAR A Die erfindungsgemäßen Separatoren für Lithiumbatterien auf Basis eines flächigen, mit einer Vielzahl von Öffnungen versehenen, flexiblen Subtrates mit einer auf und in diesem Substrat befindlichen porösen, anorganischen, elektrisch isolierenden Beschichtung, die die Öffnungen des Substrates verschließt, wobei das Material des Substrates ausgewählt ist aus gewebten oder ungewebten, nicht elektrisch leitfähigen Polymerfasern und die anorganische elektrisch leitfähige Beschichtung Metalloxidpartikel aufweist, zeichnen sich dadurch aus, dass die Separatoren ohne das Vorhandensein eines Elektrolyten Lithium-Ionen leitende Eigenschaften aufweisen. Nach dem Beladen mit einem zusätzlichen Lithium-Ionen leitenden Elektrolyten ergibt sich eine deutlich höhere Ionenleitung als bei herkömmlichen Kombinationen von nicht Lithium-Ionen leitenden Separatoren und Elektrolyt. DOLLAR ...

ALKALISCHE PRIMAER-ZELLE

Komponente für eine Batteriezelle und Batteriezelle

Die Erfindung betrifft eine Komponente (18, 21, 22) für eine Batteriezelle (2), wobei zumindest ein Teil der Komponente (18, 21, 22) mit einer Beschichtung (52) versehen ist, welche einen viskoelastischen Gelbildner aufweist. Die Erfindung betrifft auch eine Batteriezelle (2), welche mindestens eine erfindungsgemäße Komponente (18, 21, 22) umfasst.

Abscheider für eine Lithium-Schwefel-Sekundärbatterie

Eine Lithium-Schwefel-Sekundärbatterie umfasst eine Schwefel-Kathode, eine Lithium-Anode, eine Ionomermembran und einen Zusatz-Flüssigkeitsabscheider. Die Lithium-Schwefel-Batterie weist zweifach Abscheider auf, wobei ein Abscheider geeignet ist zum ausreichenden Bereitstellen eines Elektrolyten an die Schwefel-Leiter-Kathode der Lithium-Schwefel-Batterie, und die Ionomermembran an der Lithium-Anode verwendet wird.

Alkalische Speicherbatterie mit zwei Separatoren

SEPARATOR FÜR BATTERIE

Batterieseparator

Separator für eine elektrochemische Zelle und elektrochemische Zelle mit einem solchen Separator

Separator für eine elektrochemische Zelle (10) in der Form einer elektronisch isolierenden Trennschicht (1) mit mindestens einer schichtförmigen Einzellage (2, 11, 12, 12', 13), wobei die Trennschicht (1) eine Vielzahl von Poren (8) zur Aufnahme eines Elektrolyts (9) aufweist, dadurch gekennzeichnet, dass zusätzlich zu den Poren (8) der Trennschicht (1) auf mindestens einer Seite (17, 17') der mindestens einen Einzellage (2, 11, 12, 12', 13) ein regelmäßiges oder regelloses aus einer Vielzahl von Erhebungen (3, 4, 5) und/oder Vertiefungen (3', 4') bestehendes Muster aufgebracht ist, wobei die Erhebungen (3, 4, 5) eine Höhe (d3) in einem Bereich zwischen 0,01 m und 100 m aufweisen und/oder dass die Vertiefungen (3', 4') eine Tiefe (d3) in einem Bereich von 0,01 m bis 100 m aufweisen, wobei außerdem ein mittlerer Abstand (d2) zwischen den Erhebungen (3, 4, 5) und/oder den Vertiefungen (3', 4') in einem Bereich zwischen 0,01 m und 100 m liegt.

Separator for enclosed cell

A separator for an enclosed cell having a strong adhesion to an electrode plate, contributing to the low internal resistance of the cell, hardly causing puncture due to repeated charging/discharging, and prolonging the life of the cell. Rubber small particles are made to adhere to the surface of the fibers of a nonwoven fabric constituting the separator, thereby allowing the particles to be present between the fibers. The rubber particles serve as elastic bodies, absorb relative displacements of the fibers, and improve the compression repulsion of the separator.

Method of making cathodes

An improved battery separator and method of forming the same

A battery separator, and a method of forming the same, which exhibits good electrical conductivity and a high degree of inhibition to dendrite formation, is in the form of a thin sheet formed from a substantially uniform mixture of a thermoplastic rubber and a filler in a volume ratio of from about 1:0.15 to 1:0.6. The thermoplastic rubber is preferably a styrene/elastomer/styrene block copolymer.

GAMMA RADIATION GRAFTING PROCESS FOR PREPARING SEPARATOR MEMBRANES FOR ELECTROCHEMICAL CELLS

Battery separators

HYDROPHILIC POLYMER COATED MICROPOROUS MEMBRANES CAPABLE OF USE AS A BATTERY SEPARATOR

ELECTRIC BATTERIES

... 1456100 Separators ESB Inc 14 Feb 1974 [23 March 1973] 6792/74 Heading H1B A separator enabling an alkaline cell to have both high rate capability and long shelf-life comprises an organic substrate, e.g. " Cellophane " (Registered Trade Mark) to at least one side of which adheres a layer of a paste-like mixture consisting of a binder material, e.g. magnesium hydroxide and an inorganic material selected from titanium dioxide, zirconium dioxide, aluminium sulphate, aluminium chloride, aluminium oxide, barium chloride and chromium chloride dispersed in an inorganic medium, e.g. a solution of potassium hydroxide. The separator may be used in a button-type silveroxide, zinc cell (Figs. 1, 2, not shown), the paste layer being in direct contact with the silver oxide. In another embodiment, the paste mixture is sandwiched between two organic substrates (Fig. 4, not shown) and, in addition, a further layer of paste mixture may be provided on the other surface of one of the substrates so as to be ...

Materials for fire protection

ELECTROLYTIC SOLUTION OF CARRYING POLYMER FILM AND SECONDARY BATTERY

SEPARATOR FOR CYLINDRICAL CELLS

STRUCTURE AND PROCEDURE FOR THE PRODUCTION OF CONNECTION LAYERS FOR A LEFT ION POLYMER BATTERY

SEPARATOR WITH COATING, PROCEDURE FOR ITS PRODUCTION AND WITH THE SEPARATOR MISTAKE ELECTRICAL AND ELECTRONIC PARTS

INTERLACING POLYMER-SUPPORTED POROUS FILM FOR A BATTERY SEPARATOR AND MANUFACTURING METHOD FOR A BATTERY THESE CONTAIN

POROUS REACTIVE POLYMER RETAINING FILM FOR A BATTERY SEPARATION MEMBER AND A USE OF IT

SEPARATOR FOR ARRANGEMENT IN BATTERIES AND BATTERY

POLYOLEFIN-MICRO-POROUS DIAPHRAGM

COMPOUND THIN FILM ELECTROLYTE

SEPARATOR FOR ALKALINE ACCUMULATORS.

PROCEDURE FOR THE PRODUCTION OF A SEPARATOR MATERIAL FOR ALKALINE ACCUMULATORS

FILM FOR SEPARATOR OF AN ELECTRO-CHEMICAL APPARATUS, PROCEDURE FOR THE PRODUCTION AND ITS USE

ELECTRICAL SEPARATOR, PROCEDURE FOR ITS PRODUCTION AND USE

RE+RECHARGEABLE ZINC MANGANESE DIOXIDE CELLS

SEPARATOR FOR MULTI-LAYER BATTERY AND MANUFACTURING PROCESS

Battery separators that include a microporous membrane and a coating.

Disclosed herein are battery separators that include a microporous membrane and a coating. The coating may comprise, consist, or consist essentially of polymeric components, inorganic components, or combinations thereof. The battery separators described herein are, among other things, thinner, stronger, and more wettable with electrolyte than some prior battery separators. The battery separators may be used in secondary or rechargeable batteries, including lithium ion batteries. The batteries may be used in vehicles or devices such as cell phones, tablets, laptops, and e-vehicles.

Asymmetric supercapacitor device with extended capability

Laminated multilayer separator for lead-acid batteries

Electric separator comprising a shut-down mechanism, method for the production thereof and its use in lithium batteries

Electrode separator

A multi-functional battery separator comprises two or more active separator layers deposited from different polymer solutions to form a multilayered unitary structure comprising a free-standing film, a multiplex film on one side of a porous substrate, or separate films or multiplex films on opposite sides of a porous substrate. In a preferred embodiment, the cascade coating method is used to simultaneously deposit the active separator layers wet so that the physical, electrical and morphological changes associated with the polymer drying out process are avoided or minimized. The multi-functional separator is inexpensive to fabricate, exhibits enhanced ionic conductivity and ionic barrier properties, and eliminates gaps between individual layers in a separator stack that can contribute to battery failure.

Method of preparing electrode assemblies

Provided herein a method of preparing electrode assemblies for lithium-ion batteries. The method disclosed herein comprises a step of pre-drying separator in the battery manufacturing process before the stacking step, thereby significantly lowering the water content of the separator. Therefore, separators can be used to prepare electrode assemblies regardless of conditions under which they are stored or transported. In addition, the peeling strength between the porous base material and protective porous layer is largely unaffected by the drying process disclosed herein.

Multi-ply battery separator and process of forming

Cylindrical electrochemical cell with cup seal for separator

BONDED COMPONENT ASSEMBLY FOR FLAT CELLS AND METHOD THEREFOR

A bonded component assembly and method for producing it, comprising an anode, a cathode and a plasticizable screen disposed between and adhesively securing said anode to said cathode in a fixed spaced-apart relationship with a separator, if needed, between and in contact with said anode and said cathode through the openings in the plasticizable screen.

FLEXIBLE ELECTRODE-SEPARATOR ELEMENTS, AND METHOD FOR MANUFACTURING SAME

Ce document décrit un procédé pour la préparation d'éléments ou assemblages électrode-séparateur flexibles, qui inclus l'application d'un matériau d'électrode sur le séparateur. Le matériau d'électrode comprend du graphène, par exemple produit par exfoliation de graphite. Les éléments électrode-séparateur obtenus par le procédé de même que leur utilisation dans des cellules électrochimiques sont aussi décrits.

PROCESS FOR PRODUCING MULTILAYERED MICROPOROUS POLYOLEFIN FILM

FABRICATING METHOD OF ELECTRODE ADHESIVE BICELL

A method for manufacturing an electrode adhesive bicell comprises steps of forming a solid state positive electrode film; forming a solid state negative electrode film; mixing polymer adhesive, a filler and two solvents of different boiling points as a mixing material; the mixing material being coated upon two opposite surfaces of a porous membrane as a coated object; the coated object being then dried as a separator membrane; the two solvents of differe nt boiling points serving to solving the polymer adhesive; after the solvent of lower boiling point is evaporated, the other solvent of high boiling point i s retained as a gel with good adhesive and plasticity for the combination of solid state positive electrode film and solid state negative electrode film.

SEPARATOR, BATTERY, BATTERY PACK, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, POWER STORAGE DEVICE, AND ELECTRIC POWER SYSTEM

The present invention comprises a layer which is disposed between a positive electrode and a negative electrode, contains particles and a resin material, and has a porous structure that has a heat capacity per unit area of 0.0001 J/Kcm2 or more, and a heat capacity per unit volume of 3.0 J/Kcm3 or less.

A PROTECTIVE FILM, AND A SEPARATOR AND A SECONDARY BATTERY USING THE SAME

An object of the present invention is to provide an anode protective film that is more certainly able to inhibit the growth of dendrites that can be formed on an anode, and a separator and a secondary battery using the same. A protective film for protecting an anode including lithium, including a polymeric porous film and a polymeric material having lithium-ion conductivity per se, wherein at least one surface of the polymeric porous film is covered with the polymeric material having lithium-ion conductivity.

LEAD-ACID BATTERY SYSTEMS AND METHODS

A lead-acid battery includes a first electrode with a first grid, and a first mixture pasted onto the first grid. The first mixture includes a first plate material with acid resistant glass fibers that resist shedding of the first plate material during operation of the lead-acid battery.

FIBER MAT FOR BATTERY PLATE REINFORCEMENT

Embodiments of the invention provide batteries, electrodes, and methods of making the same. According to one embodiment, a battery may include a positive plate having a grid pasted with a lead oxide material, a negative plate having a grid pasted with a lead based material, a separator separating the positive plate and the negative plate, and an electrolyte. A nonwoven glass mat may be in contact with a surface of either or both the positive plate or the negative plate to reinforce the plate. The nonwoven glass mat may include a plurality of first coarse fibers having fiber diameters between about 6 µm and 11 µm and a plurality of second coarse fibers having fiber diameters between about 10 µm and 20 µm.

LITHIUM ION BATTERY

A multi-core lithium ion battery includes a sealed enclosure and a support member disposed within the sealed enclosure. The support member includes a plurality of cavities and a plurality of lithium ion core members which are disposed the plurality of cavities. The battery further includes a plurality of cavity liners, each of which is positioned between a corresponding one of the lithium ion core members and a surface of a corresponding one of the cavities.

FILM FOR SEPARATOR OF ELECTROCHEMICAL APPARATUS, AND PRODUCTION METHOD AND USE THEREOF

This invention provides a film comprising a cross-linked polymer having an oxyalkylene group or a cross-linked polymer having an oxyalkylene group through a urethane bond, as a constituent component, a production method of the film, and an electrochemical apparatus using the film as a separator. The film for separator of an electrochemical apparatus can be easily and uniformly processed, can include an electrolytic solution, exhibits good film thickness and ensures excellent safety and reliability. The electrochemical apparatus is free of leakage of the solution.

THIN FILM COMPOSITE MEMBRANE AS BATTERY SEPARATOR

The present invention relates to film composite membranes for use as battery separators or coatings on electrodes.

STRUCTURALLY STABLE, FUSIBLE BATTERY SEPARATORS AND METHOD OF MAKING SAME

A fusible, structurally stabilized battery separator is disclosed. The separator is formed by extruding a cylindrical parison of a polymer film and quenching the film on both sides with a low temperature fluid stream prior to processing the film to impart microporosity. Most preferably, the film includes at least a polyethylene layer and polypropylene layer.

BATTERY WITH ENCAPSULATED ELECTRODE PLATES

A starved electrolyte battery utilizes resilient fibrous mat electrode plate separators. The resilient electrode plate separators extend beyond the peripheral edges of the electrode plates in the plate stack(s) of the battery and a) encapsulate, at least the major surfaces and certain portions, preferably all, of the electrode plate edges, and b) form electrolyte reservoirs within the battery external of the plate stack(s). Preferably, the resilient fibrous mat separators are made of microfibers and may be essentially uniform in density throughout their thicknesses or may include one or two relatively high density, high tensile strength fibrous surface layer(s) and a relatively low density, more resilient fibrous layer integral with and, in one embodiment, intermediate the two surface layers.

Elektrische Speicherzelle

Einrichtung zum Auftragen einer Schicht sehr feinen Pulvers

Accumulateur électrique.

Separator für elektrische Sammlerbatterien

Separator für elektrische Sammlerbatterien und Verfahren zur Herstellung eines solchen

Elektrisches Element und Verfahren zu dessen Herstellung

Séparateur d'électrodes d'éléments générateurs d'énergie électrique.

Verfahren zum Herstellen eines Diaphragmas, insbesondere eines Separators für elektrische Akkumulatoren

Bleiakkumulator

Elektrischer Akkumulator

Elektrische Trockenzelle

Verfahren zur Herstellung einer wiederaufladbaren, stromerzeugenden Zelle

Battery diaphragm with organic substrate

Battery diaphragm with organic substrate coated with binder, inorg. material and dispersion medium ...

BATTERY SEPARATOR WITH HIGH ELECTRICAL CONDUCTIVITY AND HIGH INHIBITION DENDRITE FORMATION.

ALKALINE PRIMARY CELL.

Silver oxide battery.

Die erfindungsgemässe Silberoxid-Batterie umfasst eine Positivelektrode (1), welche als das Aktivmaterial Silberoxid enthält, eine Negativelektrode (3), welche als das Aktivmaterial partikelartiges Zink oder partikelartige Zinklegierung enthält, und einen Separator (2), und ist dadurch gekennzeichnet, dass die Spannung des geschlossenen Kreises nach 1 Min. vom Entladeanfang unter Bedingungen einer Temperatur von 20 Grad C und einer Stromdichte von 50 mA/cm2 mehr als 1,35 V und vorzugsweise nach 10 Min. vom Entladeanfang mehr als 1,25 V beträgt. Dadurch kann eine Batterie bereitgestellt werden, die ein extrem ausgezeichnetes Leistungsverhalten bei schwerer Belastung aufweist.

코어-쉘 구조의 무기물을 포함하는 분리막 및 이의 제조방법

... 본원발명은 다공성 구조로 이루어진 분리막 기재, 및 상기 분리막 기재의 적어도 일면에 형성된 코팅층을 포함하고, 상기 코팅층은 무기물 입자 표면에 고분자가 결합된 코어-쉘(core-shell) 구조로 이루어진 표면 개질된 무기물을 포함하는 분리막에 대한 것이다.

Separadores de fibra de vidro e baterias que incluem tais separadores

Microporous polyolefin composite film having excellent heat resistance and thermal stability and method for manufacturing the same

Provided are a microporous polyolefin composite film having excellent heat resistance and thermal stability, and a method for manufacturing the same. More particularly, the present invention relates to a microporous polyolefin composite film capable of improving stability and reliability of a battery by heat sealing an edge of a microporous film provided with a coating layer that includes a polymer binder and inorganic particles, and a method for manufacturing the same.

Separator for lead acid storage batteries, and lead acid storage battery

According to the present invention, a separator 100 is arranged between a positive electrode and a negative electrode in a lead acid storage battery that is provided with the positive electrode and the negative electrode. The separator 100 contains glass fibers and an organic binder; and the separator 100 has a first layer 110a that is in contact with the positive electrode and a second layer 110b that is in contact with the negative electrode. The average pore diameter of the first layer 110a is larger than the average pore diameter of the second layer 110b; and the thickness of the first layer 110a is not more than a half of the total thickness of the separator 100.

Porous polyimide membrane and process for production thereof

A three-layered porous polyimide membrane which comprises two surface layers (a) and (b) and a macrovoid layer sandwiched therebetween. The macrovoid layer has: partition walls that are bonded to the surface layers (a) and (b); and multiple macrovoids that are surrounded by the partition walls and the surface layers (a) and (b) and that have a mean pore diameter of 10 to 500 m in the plane direction of the membrane. The partition walls of the macrovoid layer are 0.1 to 50 m in thickness, and have multiple pores having a mean pore diameter of 0.01 to 50 m. The surface layers (a) and (b) are 0.1 to 50 m in thickness, and at least one of the surface layers (a) and (b) has multiple pores having a mean pore diameter of more than 5 to 200 m, while the other surface layer has multiple pores having a mean pore diameter of 0.01 to 200 m. The pores in the partition walls of the macrovoid layer and in the surface layers (a) and (b) interconnect with each other and further with the macrovoids. The ...

Laminated microporous film and method for manufacturing the same, and separator for battery

The present invention provides a laminated microporous film with good balance between gas permeability and film-breaking temperature, the laminated microporous film being formed by laminating a first microporous layer composed of a first resin composition, and a second microporous layer composed of a second resin composition having a melt point lower than the first resin composition, wherein the melting viscosity A of the first microporous layer is 10000 Pa.S or more, and a ratio A/ B of the melting viscosity A to the melting viscosity B of the second microporous layer is 0.01 to 10.

Method for producing 2-cyanoethyl group-containing organic compound

Provided is a method for producing a 2-cyanoethyl group-containing organic compound having a high ratio of replacement by cyanoethyl groups and a high dielectric constant. More specifically, provided is a method for producing a 2-cyanoethyl group-containing organic compound comprising a step of reacting acrylonitrile with a hydroxyl group-containing organic compound in the presence of a quaternary ammonium salt as a catalyst through a Michael addition.

Biaxially oriented microporous membrane

A microporous membrane is made by a dry-stretch process and has substantially round shaped pores and a ratio of machine direction tensile strength to transverse direction tensile strength in the range of 0.5 to 5.0. The method of making the foregoing microporous membrane includes the steps of: extruding a polymer into a nonporous precursor, and biaxially stretching the nonporous precursor, the biaxial stretching including a machine direction stretching and a transverse direction stretching, the transverse direction including a simultaneous controlled machine direction relax.

Housing of electricity storage device and electricity storage device including a metal layer that is formed by a metal foil and a thermoplastic resin layer laminated on one side of the metal layer

A housing of this invention includes a metal layer 2, and a thermoplastic resin layer 4 laminated onto one side of the metal layer 2. A part of one side of the metal layer 2 is provided with a conductive section 56 that is not covered by the thermoplastic resin layer. The metal layer 2 utilizes (A) a metal foil with at least one surface processed by plating treatment; (B) a metal foil made of cladding materials; (C) a metal foil with at least one surface laminated with conductive metal oxide; or (D) a metal foil with at least one surface laminated with conductive coating layer. The conductive coating layer includes conductive additives and adhesives.

Composite film and manufacturing method for the same and battery comprising composite film

A composite film and a manufacturing method for the same and a battery comprising the composite film are provided. The composite film includes a first layer and a second layer on a side of the first layer. The first layer includes a first polyolefin. The first polyolefin has an orientation function being at least 0.6. The first polyolefin has a repeating unit of, wherein R is an alkyl group having 2, 3, 4, or 5 carbon atoms. The second layer includes a second polyolefin. The second polyolefin has an orientation function being at least 0.5. The second polyolefin has a repeating unit of, wherein A is a hydrogen or a methyl group.

MANGANESE DIOXIDE-ZINC ALKALINE SECONDARY CELL

Battery separator with antistatic properties.

Cable-Type Secondary Battery

Provided is a cable-type secondary battery including at least one anode extending longitudinally and having a horizontal cross section of a predetermined shape, a first electrolyte layer surrounding the anode and serving as an ion channel, at least one cathode extending longitudinally and having a horizontal cross section of a predetermined shape, the anode and the cathode arranged in parallel, a second electrolyte layer serving as an ion channel commonly surrounding the anode and the cathode, and a protection coating surrounding the second electrolyte layer. The cable-type secondary battery has free shape adaptation due to its linearity and flexibility. Introduction of the electrolyte layer on the electrode prevents a short circuit. The presence of a plurality of electrodes leads to an increased contact area therebetween and consequently a high battery rate. By adjusting the number of the anodes and the cathodes, it is easy to control the capacity balance therebetween.

Method For Manufacturing Separator Including Porous Coating Layers, Separator Manufactured By The Method And Electrochemical Device Including The Separator

Disclosed is a method for manufacturing a separator. The method includes (S1) preparing a slurry containing inorganic particles dispersed therein and a solution of a binder polymer in a solvent, and coating the slurry on at least one surface of a porous substrate to form a first porous coating layer, and (S2) electroprocessing a polymer solution on the outer surface of the first porous coating layer to form a second porous coating layer. The first porous coating layer formed on at least one surface of the porous substrate is composed of a highly thermally stable inorganic material to suppress short-circuiting between an anode and a cathode even when an electrochemical device is overheated. The second porous coating layer formed by electroprocessing improves the bindability of the separator to other base materials of the electrodes.

Sodium ion battery

Disclosed is a sodium ion battery comprising a positive electrode, a negative electrode, and a sodium ion nonaqueous electrolyte, wherein the negative electrode comprises a negative electrode active material and a negative electrode current collector made of aluminum or aluminum alloy. Also disclosed is use of the negative electrode current collector made of aluminum or aluminum alloy as a negative electrode current collector of a sodium ion secondary battery.

Secondary battery

Disclosed are a secondary battery including an electrode assembly which includes a first electrode plate and a second electrode plate arranged as a stack, and a separator interposed between the first electrode plate and the second electrode plate, the first electrode plate including a first active material coating part formed by coating a base with a first active material and a first non-coating part, the second electrode plate including the second active material coating part formed by coating a base with a second active material and a second non-coating part, and the first non-coating part including an insulating member in a portion corresponding to the second electrode plate.

Microporous membranes, methods for making such membranes, and the use of such membranes as battery separator film

The invention relates to microporous membranes having one or more layers comprising polymer and inorganic molecules. The invention also relates to methods for producing these membranes, and the use of these membranes as battery separator film.

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

The present disclosure relates to a separator and a lithium secondary battery including the same. The separator comprises a polyethylene-based powder or a polypropylene-based powder provided on or in the base film, wherein the polyethylene-based powder or the polypropylene-based powder is different from the base film.

Electrolytic solution for secondary battery, secondary battery, electronic appliance, power tool, electric vehicle, and electric power storage system

A secondary battery includes: a positive electrode, a negative electrode, and an electrolytic solution containing a nitrogen-containing aromatic compound, wherein the nitrogen-containing compound contains an aromatic skeleton containing one or two or more aromatic rings and one or two or more nitrogen-containing functional groups bonded to the one or two or more aromatic rings and represented by the following formula (1) (YX═N—  (1) wherein X represents C or P; Y represents a group constituted of one kind or two or more kinds of elements selected from the group consisting of H, C, N, O, S, F, Cl, Br, and I, provided that arbitrary two or more of X and Y may be bonded to each other to form a ring structure; and z is 2 or 3.

Lithium ion battery

The present disclosure relates to a lithium ion battery. The lithium ion battery cathode includes a cathode, a separator, an anode, and a nonaqueous electrolyte solution. The cathode includes a cathode current collector and a cathode material layer disposed on a surface of the cathode current collector. The cathode material layer comprises cathode active material, conductive agent, and adhesive uniformly mixed together. The cathode active material comprises cathode active material particles and AlPO 4 layers coated on surfaces of the cathode active material particles. The separator includes a porous membrane and a protective layer coated on a surface of the porous membrane. The protective layer prevents the separator from being melted during charging or discharging of the lithium ion battery.

Protected lithium electrodes having a polymer electrolyte interlayer and battery cells thereof

Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.

Battery components with leachable metal ions and uses thereof

The disclosure describes compositions and methods for producing a change in the voltage at which hydrogen gas is produced in a lead acid battery. The compositions and methods relate to producing a concentration of one or more metal ions in the lead acid battery electrolyte.

Composite porous membrane, method for producing composite porous membrane and battery separator using same

A composite porous membrane including a porous membrane A formed of a polyolefin-based resin; and a porous membrane B containing a heat-resistant resin and laminated on the porous membrane A, wherein the porous membrane A satisfies formulas (A) to (C), the composite porous membrane satisfies formula (D), and the composite porous membrane satisfies formulas (F) and (F) wherein thickness of porous membrane A<10 μm formula (A); 0.01 μm≦average pore diameter of porous membrane A≦1.0 μm formula (B); 30% porosity of porous membrane A≦70% formula (C); thickness of entire composite porous membrane≦13 μm formula (a); peel strength at interface between porous membrane A and porous membrane B≧1.0 N/25 mm formula (E); 20≦Y−X≦100 formula CO and wherein X is a gas permeation resistance (seconds/100 ccAir) of porous membrane A, and Y is a gas permeation resistance (seconds/100 ccAir) of the composite porous membrane.

Porous membrane for secondary battery, production method therefor, and use thereof

A porous membrane for a secondary battery including non-electroconductive particles and a binder for a porous membrane, wherein the non-electroconductive particles are particles of a polymer, an arithmetic mean value of a shape factor of the non-electroconductive particles is 1.05 to 1.60, a variation coefficient of the shape factor is 16% or less, and a variation coefficient of a particle diameter of the non-electroconductive particles is 26% or less; manufacturing method thereof; and an electrode, a separator and a battery having the same.

Separator and nonaqueous electrolytic secondary battery including the same

A separator for a battery according to the present disclosure (present separator) is held between a positive electrode and a negative electrode of the battery and includes an inorganic layer formation part and an inorganic layer non-formation part formed at an end. In addition, a nonaqueous electrolytic secondary battery according to the present disclosure includes: an electrode assembly including: a positive electrode having an active material layer including a positive electrode active material and a positive electrode current collector foil exposure part; a negative electrode having an active material layer including a negative electrode active material and a negative electrode current collector foil exposure part; and the present separator held between the positive electrode and the negative electrode; a case for housing the electrode assembly; and an electrolyte held between the positive electrode and the negative electrode.

Nickel-zinc rechargeable pencil battery

A rechargeable pencil battery has a hollow cylindrical positive electrode including nickel hydroxide; a gelled negative electrode comprising at least one of zinc and a zinc compound; a separator interposed between the hollow cylindrical positive electrode and the gelled negative electrode; and a negative electrode current collector inserted into the gelled negative electrode. Rechargeable batteries of the invention are capable of between about 50 and 1000 cycles from a fully charge state to a fully discharged state at a discharge rates of about 0.5 C or greater, in some embodiments about 1 C or greater. Batteries of the invention have a ratio of length to diameter of between about 1.5:1 and about 20:1, and therefore can be longer than typical commercially available batteries but also include batteries of commercial sizes e.g. AAAA, AAA, AA, C, D, sub-C and the like.

Compositions, layerings, electrodes and methods for making

There is a cell comprising an article comprising a hydrocarbon ionomer. The article may be any element in the cell, such as an interior wall, or a modification to an element, such as a film, a membrane, and a coating. The hydrocarbon ionomer is any polymer with ionic functionality, such as a polymeric (methacrylate) neutralized with lithium, and not containing halogen or halogen-containing substituents. The hydrocarbon ionomer may also be included in a composition within an element of the cell, such as a porous separator. The cell also comprises a positive electrode including sulfur compound, a negative electrode, a circuit coupling the positive electrode with the negative electrode, an electrolyte medium and an interior wall of the cell. In addition, there are methods of making the cell and methods of using the cell.

Separator for non-aqueous electrolyte battery, and non-aqueous electrolyte battery

The present invention provides a separator for a non-aqueous electrolyte battery that includes a porous base material including a polyolefin and a heat-resistant porous layer provided on at least one surface of the porous base material and including a heat-resistant resin, in which when a thermomechanical analysis measurement has been performed by applying a constant load, the separator for a non-aqueous electrolyte battery satisfies the following conditions (i) and (ii): (i) at least one shrinkage peak appears in a temperature range of from 130 to 155° C. in a displacement waveform representing shrinkage displacement with respect to temperature; and (ii) an extension rate in a range from a shrinkage peak appearance temperature T 1 to (T 1 +20)° C. is less than 0.5%/° C.

Slurry for secondary battery porous membranes, secondary battery porous membrane, secondary battery electrode, secondary battery separator, secondary battery, and method for producing secondary battery porous membrane

To provide a secondary battery porous membrane which is produced using a slurry for secondary battery porous membranes having excellent coatability and excellent dispersibility of insulating inorganic particles and is capable of improving the cycle characteristics of a secondary battery that is obtained using the secondary battery porous membrane, said secondary battery porous membrane having high flexibility and low water content and being capable of preventing particle fall-off. [Solution] A slurry for secondary battery porous membranes of the present invention is characterized by containing: insulating inorganic particles, each of which has a surface functional group that is selected from the group consisting of an amino group, an epoxy group; a mercapto group and an isocyanate group; a binder which has a reactive group that is crosslinkable with the surface functional group; and a solvent.

Method for manufacturing separator, separator manufactured therefrom, and electrochemical device comprising the same

The present invention provides a method for manufacturing a separator, comprising the steps of (S1) preparing a porous planar substrate having multiple pores; (S2) coating a coating solution obtained by dissolving a binder polymer in a solvent and dispersing inoganic particles therein on the porous substrate to form a porous coating layer and drying the porous coating layer; and (S3) applying a binder solution on the surface of the dried porous coating layer to form an adhesive layer, wherein the binder solution has a surface energy of at least 10 mN/m higher than that of the porous coating layer and a contact angle of the binder solution to the surface of the porous coating layer maintained at 80° or more for 30 seconds. In accordance with the present invention, a separator capable of obtaining sufficient adhesion force with minimizing the amount of an adhesive used for the adhesion with an electrode, and minimizing the deterioration of battery performances can be easily manufactured.

Polyolefin-Based Porous Film and Method for Producing the Same

A method for producing a polyolefin-based porous film includes an (A) step: a raw fabric forming step for forming a non-porous raw fabric from a polyolefin-based resin composition, a (B) step: an MD cold stretching step for cold stretching the non-porous raw fabric obtained in the (A) step at a temperature of −20° C. to (Tm−30)° C. (Tm is a melting point (° C.) of the non-porous raw fabric) in an extruding direction (MD) of the raw fabric to make the raw fabric porous; a (D) step: a TD cold stretching step for cold stretching a film processed in the (B) step in a direction (TD) perpendicular to the MD, and an (H) step: a thermal fixing step, in the above order.

Bipolar ion exchange membranes for batteries and other electrochemical devices

A bipolar ion exchange membrane suitable for use in ZnBr batteries, LiBr batteries, and electrolyzers. The membrane is produced by hot pressing or extruding a mixture of an anion exchange ionomer powder, a cation exchange ionomer powder, and a non-porous polymer powder.

Separator membranes for lithium ion batteries and related methods

A battery separator for a secondary lithium battery includes a microporous/porous membrane with a ceramic coating of one or more layers, a layer may include one or more particles and/or binders.

Lithium secondary battery

The present invention relates to a lithium secondary battery. More specifically, according to embodiments of the present invention the lithium battery, which includes a cathode, an anode, and a separate membrane inserted between the cathode and the anode, is characterized in that the separator membrane is a polyolefin porous membrane which has an aramid coating layer; and the cathode includes a lithium metal oxide cathode active material which has an olivine-type iron phosphate lithium coating layer, or the anode includes a carbon anode active material which has a spinel-type lithium titanium oxide coating layer. The lithium secondary battery in accordance with embodiments of the present invention has excellent basic electric performance and improved stability.

FUNCTIONAL SEPARATOR HAVING CATALYTIC SITES INTRODUCED THEREINTO, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

In order to solve the problems caused by lithium polysulfide leaching from the positive electrode, disclosed is a catalytic site-introduced functional separator, a method of manufacturing the same, and a lithium secondary battery including the same, which can improve the capacity and lifetime of the battery by coating a material, which can act as a reduction catalyst for lithium polysulfide, on the surface of the separator. The catalytic site-introduced functional separator includes a base separator and a catalytic site-containing coating layer located on the surface of the base separator. 1. A catalytic site-introduced functional separator comprising:a base separator; anda coating layer on at least one surface of the base separator, wherein the coating layer comprises a catalytic site.2. The catalytic site-introduced functional separator according to claim 1 , wherein the catalytic site contains a continuous bond of transition metal-nitrogen-carbon.3. The catalytic site-introduced functional separator according to claim 1 , wherein the catalytic site is at least one selected from the group consisting of iron phthalocyanine (FePc) claim 1 , nickel phthalocyanine (NiPc) claim 1 , manganese phthalocyanine (MnPc) claim 1 , copper phthalocyanine (CuPc) claim 1 , and zinc phthalocyanine (ZnPc).4. The catalytic site-introduced functional separator according to claim 1 , wherein the catalytic site has a size of 0.1 nm to 10 nm.5. The catalytic site-introduced functional separator according to claim 1 , wherein the coating layer has a thickness of 0.1 μm to 20 μm.6. The catalytic site-introduced functional separator according to claim 1 , wherein a content of the coating layer is 1 μg/cm200 μg/cmrelative to a surface area of the base separator.7. The catalytic site-introduced functional separator according to claim 1 , wherein the coating layer further comprises conductive carbon.8. The catalytic site-introduced functional separator according to claim 7 , wherein the ...

Methods of making glass constructs

Manufacturing methods for making a substantially rectangular and flat glass preform for manufacturing a Li ion conducting glass separator can involve drawing the preform to a thin sheet and may involve one or more of slumping, rolling or casting the glass within a frame that defines a space filling region and therewith the shape and size of the preform. The thickness of the rectangular flat preform so formed may be about 2 mm or less. The frame may be slotted having a back surface and widthwise wall portion that define the height and width of the space filling region. The flat backing surface and surfaces of the widthwise wall portions are defined may be coated by a material that is inert in direct contact with the heated glass material, such as gold.

Composite separator for secondary battery

Provided are a composite separator and an electrochemical device using the same. More specifically, provided is a composite separator including a coating layer for improving an adhesive property between an electrode and a separator.

Separator for lithium secondary battery and lithium secondary battery comprising same

The present invention relates to a separator for a lithium secondary battery and a lithium secondary battery including same, the separator including: a porous substrate; and a coating layer on at least one surface of the porous substrate. The coating layer includes a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylonitrile, and a third structural unit derived from (meth)acrylamido sulfonic acid, (meth)acrylamido sulfonic acid salt, or a combination thereof. The first structural unit is included in an amount of 55 mol % to 90 mol % based on 100 mol % of the (meth)acrylic copolymer and the second structural unit and third structural unit are each independently included in 5 mol % to 40 mol % based on 100 mol % of the (meth)acrylic copolymer. The (meth)acrylic copolymer has a weight average molecular weight of 200,000 to 700,000.

SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to a separator for a lithium secondary battery and a lithium secondary battery including the separator, the separator for a lithium secondary battery including: a polyolefin-based porous substrate; and a coating layer on at least one surface of the polyolefin-based porous substrate, wherein a coefficient of performance Q1 of the polyolefin-based porous substrate as represented by Equation 1 is greater than or equal to 1.2 (gf/nm·μm), a coefficient of performance Q2 of the polyolefin-based porous substrate as represented by Equation 2 is greater than or equal to 0.25 (gf/nm·%), and the coating layer includes a binder and inorganic particles. 3. The separator of claim 1 , wherein the polyethylene-based porous substrate has a porosity of less than 40%.4. The separator of claim 1 , wherein the polyolefin-based porous substrate has a thickness of 1 μm to 10 μm.5. The separator of claim 1 , wherein a puncture strength standardized by a thickness of the polyolefin-based porous substrate is greater than or equal to 0.4 N/μm.6. The separator of claim 1 , wherein the separator has an air permeability of less than or equal to 250 (sec/100 cc).7. The separator of claim 1 , wherein the separator has a puncture strength of greater than or equal to 350 gf.8. The separator of claim 1 , wherein the inorganic particles include AlO claim 1 , SiO claim 1 , TiO claim 1 , SnO claim 1 , CeO claim 1 , MgO claim 1 , NiO claim 1 , CaO claim 1 , GaO claim 1 , ZnO claim 1 , ZrO claim 1 , YO claim 1 , SrTiO claim 1 , BaTiO claim 1 , Mg(OH) claim 1 , boehmite claim 1 , or a combination thereof.9. The separator of claim 1 , wherein the binder:inorganic particles are included in a weight ratio of 1:1 to 1:7.10. A lithium secondary battery claim 1 , comprisinga positive electrode;a negative electrode; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the separator of between the positive electrode and the negative electrode.'} A separator for a lithium secondary ...

PRINTING NANOPOROUS ULTRATHIN MEMBRANES FOR LITHIUM-SULFUR BATTERIES

A method of making a composite membrane for a lithium-sulfur (Li—S) battery is described. The method includes providing a polymeric separator membrane; synthesizing a graphene oxide (GO) dispersion; and printing the GO dispersion onto at least one surface of the polymeric separator membrane. The GO coating includes a GO layer. 1. A graphene oxide (GO) coating for a separator membrane of a lithium-sulfur (Li—S) battery , the GO coating comprising:{'sub': '3', 'a GO layer comprising a GO dispersion comprising a type of GO, the type of GO selected from the group comprising: Type I GO corresponding to original GO prepared by a modified Hummers method, Type I GO functionalized with a carboxyl group (COOH), Type II GO corresponding to GO with enlarged structural defects etched by a nitric acid (HNO) oxidation, and Type III GO with reduced lateral size synthesized by ultra-sonication.'}2. The GO coating of claim 1 , wherein the Type I GO functionalized with the carboxyl group is synthesized by mixing a 25 mL (milliliters) dispersion of original GO at a concentration of 2 mg/g (milligrams per gram) of deionized water with 5 mL of hydrogen bromide (HBr) at room temperature under vigorous stirring for 12 hours followed by adding 1 g of oxalic acid and stirring for 4 hours followed by washing with deionized water to remove the acid using centrifugation at 10 claim 1 ,000 revolutions per minute (RPM).3. The GO coating of claim 1 , wherein the Type II GO with enlarged structural defects is synthesized by diluting 2 mL of original GO to 1 mg/g with deionized water and mixing with a quantity of 70% concentrated nitric acid (HNO) in a sealed glass vial followed by sonicating in a bath sonicator at room temperature for 1 hour followed by washing with deionized water to remove the acid using centrifugation at 10 claim 1 ,000 revolutions per minute (RPM).4. The GO coating of claim 1 , wherein the Type III GO with reduced lateral size is synthesized by putting a 50 mL dispersion of ...

Heat-resistant synthetic resin microporous film, separator for non-aqueous liquid electrolyte secondary battery, non-aqueous liquid electrolyte secondary battery, and method for producing heat-resistant synthetic resin microporous film

Provided are a heat-resistant synthetic resin microporous film having enhanced heat resistance while having reduced deterioration of mechanical strength, and a method for producing the same. Disclosed is a heat-resistant synthetic resin microporous film which includes a synthetic resin microporous film containing a synthetic resin; and a coating layer formed on at least a portion of the surface of the synthetic resin microporous film and containing a polymer of a polymerizable compound having a bifunctional or higher-functional radical polymerizable functional group, the heat-resistant synthetic resin microporous film having a surface aperture ratio of 30% to 55%, gas permeability of 50 sec/100 mL to 600 sec/100 mL, a maximum thermal shrinkage obtainable when the film is heated from 25° C. to 180° C. at a rate of temperature increase of 5° C./min, of 20% or less, and a piercing strength of 0.7 N or more.

Laminated porous film, separator for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery

An object of the present invention is to provide a laminated porous film excellent in handling ability. A laminated porous film having a layer containing a polymer other than a polyolefin laminated on at least one surface of a polyolefin porous film, wherein the uplift quantity of a side perpendicular to the machine direction, when allowed to stand still for 1 hour under an environment of a temperature of 23° C. and a humidity of 50%, is 15 mm or less.

Separator for secondary battery and lithium secondary battery comprising same

The present invention relates to a separator for a secondary battery and a lithium secondary battery comprising the same, wherein the separator comprises a porous substrate and a heat-resistant porous layer positioned on at least one surface of the porous substrate, the heat-resistant porous layer comprising a first binder, a second binder, and a filler, the first binder comprising a copolymer having: a first structural unit derived from a first fluorine monomer; a second structural unit derived from a second fluorine monomer; and a third structural unit derived from a monomer comprising at least one functional group selected from a hydroxyl group, a carboxyl group, an ester group, an acid anhydride group, and a derivative thereof, the second binder comprising at least one of a vinylidene fluoride homopolymer and a vinylidene fluoride copolymer.

Iron ion trapping van der waals gripper additives for electrolyte systems in lithium-ion batteries

Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing deposition of transition metal ions at negative electrodes are provided. The electrochemical cells include a positive electrode, a negative electrode, a separator disposed therebetween, and an electrolyte system including one or more lithium salts, one or more solvents, and at least one additive complexing compound. The at least one additive complexing compound includes an alkyl group having greater than or equal to 4 carbon atoms and less than or equal to 22 carbon atoms and a transition metal ion trapping group. The at least one additive compound associates with a surface of the separator via van der Waal's interactive forces and is further capable of complexing with transition metal ion within the electrochemical cell to sequester or tether the ions generated by contaminants to minimize or suppress the deposition of transition metal cations on the negative electrode.

Protective layers for electrochemical cells

Articles and methods including layers for protection of electrodes in electrochemical cells are provided. As described herein, a layer, such as a protective layer for an electrode, may comprise a plurality of particles (e.g., crystalline inorganic particles, amorphous inorganic particles). In some embodiments, at least a portion of the plurality of particles (e.g., inorganic particles) are fused to one another. For instance, in some embodiments, the layer may be formed by aerosol deposition or another suitable process that involves subjecting the particles to a relatively high velocity such that fusion of particles occurs during deposition. In some embodiments, the layer (e.g., the layer comprising a plurality of particles) is an ion-conducting layer.

LITHIUM-MANGANESE DIOXIDE PRIMARY BATTARY AND PREPARATION THEREOF

A lithium-manganese dioxide primary battery and preparation thereof. The battery has a discharge capacity greater than 3C at −40° C., and includes multiple positive plates, multiple negative plates, multiple ceramic separators, an electrolyte and a casing. The positive plates, the negative plates and the separators are laminated in a manner of repeated “positive plate-separator-negative plate-separator” to form a dry cell. The lithium-manganese dioxide primary battery is made by placement of the dry cell into the casing, injection of the electrolyte, primary aging, sealing and secondary aging. The positive plate and the negative plate are graphene-based manganese dioxide positive plate and lithium-carbon composite negative plate, respectively. The front and back surfaces of the positive plate are respectively provided with a positive reserved tab, and the front and back surfaces of the negative plate are respectively provided with a negative reserved tab. 1. A lithium-manganese dioxide primary battery , comprising:a dry cell;an electrolyte; anda casing;wherein the dry cell comprises a plurality of positive plates, a plurality of negative plates and a plurality of separators; the plurality of positive plates, the plurality of negative plates and the plurality of separators are laminated in a manner of repeated “positive plate-separator-negative plate-separator”; the lithium-manganese dioxide primary battery is prepared by placement of the dry cell in the casing, injection of the electrolyte, primary aging, sealing and secondary aging; each of the plurality of positive plates is a graphene-based manganese dioxide positive plate; each of the plurality of negative plates is a lithium-carbon composite negative plate; both surfaces of each of the plurality of positive plates are provided with a positive reserved tab, respectively; both surfaces of each of the plurality of negative plates are provided with a negative reserved tab, respectively; and the lithium-manganese ...

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

This non-aqueous electrolyte secondary battery comprises a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The separator includes; a porous base material; a first filler layer which contains phosphate particles as a primary component and is arranged on one surface of the base material; and a second filler layer which is arranged on the other surface of the base material and which contains at least one type of compound selected from the group consisting of an aromatic polyamide, an aromatic polyimide and an aromatic polyamideimide. The BET specific surface area of the phosphate particles is 5-100 m/g. The content of the aforementioned compounds in the second filler layer is 15 mass % or more. 1. A non-aqueous electrolyte secondary battery comprising:a positive electrode;a negative electrode; anda separator interposed between the positive electrode and the negative electrode, wherein the separator comprises:a porous base member;a first filler layer which contains phosphate particles as a primary component, and which is placed over one surface of the base member; anda second filler layer which contains one or more compounds selected from the group consisting of an aromatic polyamide, an aromatic polyimide, and an aromatic polyamideimide, and which is placed over the other surface of the base member,{'sup': 2', '2, 'a BET specific surface area of the phosphate particles is greater than or equal to 5 m/g and less than or equal to 100 m/g, and'}a content of the compound in the second filler layer is greater than or equal to 15 mass %.2. The non-aqueous electrolyte secondary battery according to claim 1 , whereinthe content of the compound in the second filler layer is greater than or equal to 20 mass % and less than or equal to 40 mass %.3. The non-aqueous electrolyte secondary battery according to claim 1 , whereina content of the phosphate particles in the first filler layer is greater than ...

Battery

A battery is provided. The battery includes a positive electrode including a positive electrode active material layer provided on a positive electrode current collector; a negative electrode; and a separator at least including a porous film, wherein the porous film has a porosity ε [%] and an air permeability t [sec/100 cc] which satisfy formulae of: t=a×Ln (ε)− 4.02 a+ 100 and − 1.87×1010× S −4.96 ≦a≦− 40 wherein S is the area density of the positive electrode active material layer [mg/cm2] and Ln is natural logarithm.

Base for lithium ion secondary battery separators, method for producing base for lithium ion secondary battery separators, and lithium ion secondary battery separator

A base material for a lithium ion secondary battery separator provided by the present invention comprises a polyethylene terephthalate fiber, in which an average fiber diameter of the polyethylene terephthalate fiber is 9.0 μm or less, a specific X-ray diffraction intensity derived from the polyethylene terephthalate fiber is 300 cps/(g/m 2 ) or more, and a coefficient of variation of a specific X-ray diffraction intensity is 12.0% or less, and is excellent in the workability during production and excellent in mechanical strength, uniformity and handling in a subsequent treatment step.

Ion exchange membrane and method for manufacturing same

A method for manufacturing an ion exchange membrane is provided. The method for manufacturing an ion exchange membrane, according to one embodiment of the present invention, comprises the step of electrospinning a support fiber producing solution and an ion exchange fiber producing solution respectively to prepare a laminate in which a support fiber mat consisting of a support fiber and an ion exchange fiber mat consisting of an ion exchange fiber are alternatively laminated. According to the present invention, it is possible to simply control factors, such as the thickness, electroconductivity and mechanical strength of the membrane, and the diameter/ratio of a pore, etc. to be suitable for the use of ion exchange membrane during the manufacturing process, to simplify the manufacturing process. As such, the ion exchange membrane manufactured by the method can be utilized as a universal ion exchange membrane which has a large ion exchange capacity, a small electrical resistance, and a small diffusion coefficient as well as excellent mechanical strength and durability.

Fluoropolymer composition stabilized against changes in ph

The present invention relates to a composition comprising particles of at least one 1,1-difluoroethylene (VDF)-based fluoropolymer, in admixture with a stabilizer agent selected from alkaline metal hydrogencarbonates or hydrogenphosphates, and to uses of said composition notably in electrochemical cells.

Protected active metal electrode and battery cell structures with non-aqueous interlayer architecture

Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety of electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.

Method for production of laminated solid electrolyte-based components and electrochemical cells using same

A method for producing a solid electrolyte-based electrochemical cell by dry laminating the solid electrolyte layers to active material layers to form composite components, contacting composite components, and packaging the contacted composite components to form a solid electrolyte-based electrochemical cell.

BATTERY

A battery is provided. The battery includes an electrode body having a winding structure. The electrode body includes a first electrode having a first belt shape, a second electrode having a second belt shape, and a separator having a third belt shape, and an electrolyte. The separator is provided between the first electrode and the second electrode. 1. A battery comprising:an electrode body having a winding structure, the electrode body including:a first electrode having a first belt shape;a second electrode having a second belt shape; anda separator having a third belt shape, the separator being provided between the first electrode and the second electrode; andan electrolyte, whereinan electrode that is located at an innermost periphery from among the first electrode and the second electrode includes:a current collector that includes a first principal face and a second principal face;a first active material layer that is provided on the first principal face in such a way that a first current-collector exposed part is provided at an end on a winding center side of the electrode;a second active material layer that is provided on the second principal face in such a way that a second current-collector exposed part is provided at the end on the winding center side of the electrode;a first insulating member; anda second insulating member, whereinthe first insulating member covers a boundary between the first active material layer and the first current-collector exposed part, and the first current-collector exposed part,the second insulating member covers a boundary between the second active material layer and the second current-collector exposed part, and the second current-collector exposed part,the first insulating member and the second insulating member overlap each other to sandwich the current collector,widths of the first insulating member and the second insulating member in a shorter side direction of the electrode are greater than a width of the electrode in the ...

ENERGY STORAGE DEVICE HAVING A CURRENT COLLECTOR WITH INHERENT CURRENT LIMITATIONS

Improvements in the structural components and physical characteristics of lithium battery articles are provided. Standard lithium ion batteries, for example, are prone to certain phenomena related to short circuiting and have experienced high temperature occurrences and ultimate firing as a result. Structural concerns with battery components have been found to contribute to such problems. Improvements provided herein include the utilization of thin metallized current collectors (aluminum and/or copper, as examples), high shrinkage rate materials, materials that become nonconductive upon exposure to high temperatures, and combinations thereof. Such improvements accord the ability to withstand certain imperfections (dendrites, unexpected electrical surges, etc.) within the target lithium battery through provision of ostensibly an internal fuse within the subject lithium batteries themselves that prevents undesirable high temperature results from short circuits. Battery articles and methods of use thereof including such improvements are also encompassed within this disclosure. 1. An energy storage device comprising an anode , a cathode , at least one separator present interposed between said anode and said cathode , at least one liquid electrolyte , and at least one current collector in contact with at least one of said anode and said cathode , wherein said current collector has a top surface and a bottom surface; wherein said separator is of a polymeric , ceramic , or nonwoven structure; wherein said current collector is a nonconductive material having a conductive coating on both surfaces thereof; wherein said current collector exhibits the capability to carry a useful current density when operating normally along a current pathway horizontally along said current collector; and wherein said current collector , when present as a strip having dimensions of 4 cm by 1 cm and subjected to a current along the length thereof that is increased in 0.2 A increments , is unable ...

AIR ELECTRODE/SEPARATOR ASSEMBLY AND METAL-AIR SECONDARY BATTERY

Provided is an air electrode/separator assembly including a hydroxide ion conductive dense separator and an air electrode layer provided on one side of the hydroxide ion conductive dense separator. The air electrode layer includes: an internal catalyst layer provided closer to the hydroxide ion conductive dense separator and filled with a mixture containing a hydroxide ion conductive material, an electron conductive material, an organic polymer, and an air electrode catalyst (provided that the hydroxide ion conductive material may be the same material as the air electrode catalyst, and provided that the electron conductive material may be the same material as the air electrode catalyst); and an outermost catalyst layer provided away from the hydroxide ion conductive dense separator having a porosity of 60% or more, composed of a porous current collector and a layered double hydroxide (LDH) covering a surface thereof. 1. An air electrode/separator assembly comprising a hydroxide ion conductive dense separator and an air electrode layer provided on one side of the hydroxide ion conductive dense separator , wherein the air electrode layer comprises:an internal catalyst layer provided closer to the hydroxide ion conductive dense separator and filled with a mixture comprising a hydroxide ion conductive material, an electron conductive material, an organic polymer, and an air electrode catalyst, provided that the hydroxide ion conductive material may be the same material as the air electrode catalyst, and provided that the electron conductive material may be the same material as the air electrode catalyst, andan outermost catalyst layer provided away from the hydroxide ion conductive dense separator, composed of a porous current collector and a layered double hydroxide (LDH) covering the surface thereof, and having a porosity of 60% or more.2. The air electrode/separator assembly according to claim 1 , wherein the LDH has a form of a plurality of LDH platy particles in ...

SEPARATOR AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

This separator is provided with a resin substrate, a first heat-resistant layer that covers the entirety of one surface of the resin substrate, a second heat-resistant layer that covers a portion of the other surface of the resin substrate, and an uncovered region that is in the other surface of the resin substrate and that is not covered by the second heat-resistant layer, wherein the first heat-resistant layer and the second heat-resistant layer each include inorganic particles and a binder. In each of the heat-resistant layers, the contained amount of the inorganic particles is 50-90 mass %, the contained amount of the binder is 10-50 mass %, and the uncovered region is connected to the end portion of the resin substrate. 1. A separator , comprising:a resin substrate;a first heat-resistant layer covering the whole of a first surface of the resin substrate;a second heat-resistant layer covering part of a second surface of the resin substrate; anda non-covered region on the second surface of the resin substrate, the non-covered region not being covered with the second heat-resistant layer, whereinthe first heat-resistant layer and the second heat-resistant layer each include inorganic particles and a binder, a content of the inorganic particles in each heat-resistant layer is 50 mass % to 90 mass %, and a content of the binder in each heat-resistant layer is 10 mass % to 50 mass %, andthe non-covered region is in communication with an edge of the resin substrate.2. The separator according to claim 1 , wherein the binder includes polyvinylidene fluoride.3. The separator according to claim 1 , wherein the non-covered region includes a lateral non-covered region extending from one lateral edge to the other lateral edge of the resin substrate.4. The separator according to claim 1 , wherein the form of the non-covered region is linear.5. The separator according to claim 1 , wherein the area of the non-covered region is 5% to 20% based on an area of the second surface of ...

Air electrode/separator assembly and metal-air secondary battery

Provided is an air electrode/separator assembly including: a hydroxide ion conductive dense separator; an interface layer containing a hydroxide ion conductive material and an electron conductive material and covering one side of the hydroxide ion conductive dense separator; and an air electrode layer provided on the interface layer and including an outermost catalyst layer composed of a porous current collector and a layered double hydroxide (LDH) covering a surface thereof. The outermost catalyst layer has a porosity of 60% or more.

Separator for lithium-ion secondary battery

Problem: The invention provides a separator for a lithium-ion secondary battery exhibiting excellent strength, wettability with nonaqueous electrolyte solutions, voltage endurance and cycle characteristics in lithium-ion secondary batteries, and a method of increasing the puncture depth of the separator. Solution: A separator for a lithium-ion secondary battery is formed of a microporous film comprising a polyolefin resin (A) as a major component, and a resin (B), at least portions of the surfaces of the micropores in the microporous film being coated with resin (B).

Membranes, calendered microporous membranes, battery separators, and related methods

Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendering step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength. In a very particular embodiment, the inventive process produces a thin multilayer microporous membrane that is easily coated with polymeric-ceramic coatings, has excellent mechanical strength properties due to its polypropylene layer or layers and a thermal shutdown function due to its polyethylene layer or layers. The ratio of the thickness of the polypropylene and polyethylene layers in the inventive multilayer microporous membrane can be tailored to balance mechanical strength and thermal shutdown properties.

Composite Separator and Electrochemical Device Including the Same

Provided are a composite separator including a coating layer including inorganic particles and a binder formed on a porous substrate, which has improved coatability and improved thermal shrinkage, and a lithium secondary battery using the same. 1. A composite separator comprising:a porous substrate; anda coating layer comprising inorganic particles and a binder formed on one surface or both surfaces of the porous substrate,wherein the binder comprises a copolymer comprising: (a) a unit derived from (meth)acrylamide; (b) a unit derived from any one or more selected from (b-1) (meth)acrylic acid and (b-2) a (meth)acrylic acid salt; and (c) a unit derived from an addition-polymerizable monomer containing a sulfonate.3. The composite separator of claim 2 , wherein R claim 2 , R claim 2 , and Rare hydrogen claim 2 , and Ris methyl.4. The composite separator of claim 1 , wherein the copolymer further comprises a repeating unit derived from N-methylolacrylamide.5. The composite separator of claim 1 ,wherein the copolymer comprises: 49 to 98 mol % of (a), 1 to 50 mol % of (b-1)+(b-2), and 0.0001 to 1 mol % of (c), and(b-1):(b-2) is at a mole ratio of 0:100 to 10:90.6. The composite separator of claim 5 ,wherein the copolymer comprises (b-1) and (b-2) at a mole ratio of 1:99 to 2:98.7. The composite separator of claim 1 , wherein the binder further comprises a crosslinking agent.8. The composite separator of claim 7 , wherein the crosslinking agent is any one or a mixture of two or more selected from glycol-based compounds and polyol compounds.9. The composite separator of claim 1 , wherein the copolymer has a weight average molecular weight of 500 claim 1 ,000 to 2 claim 1 ,000 claim 1 ,000 g/mol.10. The composite separator of claim 1 , wherein a content ratio of the inorganic particles:the binder is 80:20 to 99.9:0.1 by weight.11. The composite separator of claim 1 , wherein the composite separator has a thermal shrinkage rate both in a machine direction (MD) and in a ...

Biaxially oriented film having a particle-containing porous layer

The invention relates to a biaxially oriented single-layer or multilayer porous film which comprises at least one porous layer and said layer comprises at least one propylene polymer, at least one β-nucleating agent and particles, said particles having a melting point of over 200° C. and at most an agglomerate or at most a particle having a particle size of >1 μm being detectable on a REM recording of a film sample of 10mm2.

Separator for a non-aqueous secondary battery, and non-aqueous secondary battery

A separator for a non-aqueous secondary battery, the separator including: a porous substrate; and an adhesive porous layer provided on one or both sides of the porous substrate and including a polyvinylidene fluoride-based resin, the adhesive porous layer would exhibit a ratio of an area intensity of a β-phase-crystal-derived peak of the polyvinylidene fluoride-based resin to a sum of an area intensity of an α-phase-crystal-derived peak of the polyvinylidene fluoride-based resin and the area intensity of the β-phase-crystal-derived peak of the polyvinylidene fluoride-based resin of from 10% to 100% when an x-ray diffraction spectrum is obtained by performing measurement by an x-ray diffraction method.

Power storage device

To provide a highly reliable power storage device, to improve the security of a power storage device, and to suppress deterioration of a power storage device, a power storage device includes, inside an exterior material, a positive electrode, a negative electrode facing the positive electrode, an electrolyte solution between the positive electrode and the negative electrode, and an adsorbent. A separation body which is impermeable to the electrolyte solution and permeable to a gas is provided between the electrolyte solution and the adsorbent.

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, SECONDARY BATTERY, AND MANUFACTURING METHOD OF SECONDARY BATTERY

A separator for a non-aqueous secondary battery includes: a polyimide porous film; and adhesive resin particles that are attached to a surface of the polyimide porous film and have a responsiveness to at least one of pressure and heat. 1. A separator for a non-aqueous secondary battery , comprising:a polyimide porous film; andadhesive resin particles that are attached to a surface of the polyimide porous film and have a responsiveness to at least one of pressure and heat.2. The separator for a non-aqueous secondary battery according to claim 1 ,wherein when an average pore diameter of the polyimide porous film is set to X, and an average particle diameter of the adhesive resin particles is set to Y, a relationship of X Подробнее

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME

A separator for an electrochemical device comprising a porous polymer substrate, and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer comprises inorganic particles and an ion conducting polymer. The ion conducting polymer comprises a fluorine-based copolymer comprising fluoroolefin-based segments with anionic functional groups present in side chains or terminals, and an electrochemical device comprising the same. It is possible to provide a separator with high ionic conductivity and an increased peel strength between the porous polymer substrate and the porous coating layer, and an electrochemical device with improved properties. 1. A separator for an electrochemical device , comprising:a porous polymer substrate; anda porous coating layer on at least one surface of the porous polymer substrate,wherein the porous coating layer comprises inorganic particles and an ion conducting polymer, andwherein the ion conducting polymer comprises a fluorine-based copolymer comprising fluoroolefin-based segments with anionic functional groups present in side chains or terminals of the copolymer.2. The separator for an electrochemical device according to claim 1 , wherein the anionic functional groups comprise at least one of —SOH claim 1 , —COOH claim 1 , -PhOH claim 1 , —ArSOH claim 1 , or —NH.3. The separator for an electrochemical device according to claim 1 , wherein the fluorine-based copolymer has an ionic conductivity of 0.1×10S/cm to 99×10S/cm.4. The separator for an electrochemical device according to claim 1 , wherein the fluorine-based copolymer comprises at least one of an tetrafluoroethylene-based fluorine-based copolymer claim 1 , an ethylene tetrafluoroethylene-based fluorine-based copolymer claim 1 , a vinyl fluoride-based fluorine-based copolymer claim 1 , a vinylidene fluoride-based fluorine-based copolymer claim 1 , a hexafluoropropylene-based fluorine-based copolymer claim 1 , a chlorotrifluoroethylene- ...

POROUS LAYER FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Provided is a nonaqueous electrolyte secondary battery porous layer which has both high-voltage resistance and adhesiveness. The nonaqueous electrolyte secondary battery porous layer contains: a block copolymer; and a filler, the block copolymer having: a block A containing, as a main component, units each represented by “—(NH—Ar—O—NHCO—Ar—CO)—”; and a block B containing, as a main component, units each represented by “—(NH—Ar13 NHCO—Ar—CO—)—”. Not less than 50% of all Areach have a structure in which two aromatic rings are connected by a sulfonyl bond. Not more than 50% of all Areach have a structure in which two aromatic rings are connected by a sulfonyl bond. 30% to 70% of all Arand Areach have a structure in which two aromatic rings are connected by a sulfonyl bond. 1. A nonaqueous electrolyte secondary battery porous layer comprising:a block copolymer; anda filler, [ {'br': None, 'sup': 1', '2, '—(NH—Ar—NHCO—Ar—CO)—\u2003\u2003Formula (1); and'}, 'a block A containing, as a main component, units each represented by the following Formula (1), {'br': None, 'sup': 3', '4, '—(NH—Ar—NHCO—Ar—CO)—\u2003\u2003Formula (2),'}, 'a block B containing, as a main component, units each represented by the following Formula (2)], 'the block copolymer having [{'sup': 1', '2', '3', '4, 'Ar, Ar, Ar, and Armay each vary from unit to unit;'}, {'sup': 1', '2', '3', '4, 'Ar, Ar, Ar, and Arare each independently a divalent group having one or more aromatic rings;'}, {'sup': '1', 'not less than 50% of all Areach have a structure in which two aromatic rings are connected by a sulfonyl bond;'}, {'sup': '3', 'not more than 50% of all Areach have a structure in which two aromatic rings are connected by a sulfonyl bond;'}, {'sup': 1', '3, '30% to 70% of all Arand Areach have a structure in which two aromatic rings are connected by a sulfonyl bond.'}], 'wherein2. The nonaqueous electrolyte secondary battery porous layer as set forth in claim 1 , wherein:not less than 50% of the units which ...

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/cm 3 or 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.

LEAD-ACID BATTERY SEPARATORS, ELECTRODES, BATTERIES, AND METHODS OF MANUFACTURE AND USE THEREOF

New or improved battery separators for lead-acid batteries that include a carbon or mineral additive applied to the separator. In possibly preferred embodiments, the battery separator may include engineered carbon materials applied to the battery separator to modify sulfate crystal formation while decreasing the detrimental consequences of excessive gas evolution into the negative electrode itself. In one embodiment, a method of enhancing the lead-acid energy storage performance of a lead-acid battery may include delivering carbon to the negative active material surface of the battery separator where the carbon may effectively enhance charge acceptance and improve life cycle performance of a lead-acid battery. 124-. (canceled)25. A battery separator for a lead-acid battery comprising , a battery separator made of polyolefin or a battery separator made of polyolefin laminated to a glass layer , a polymer layer , a non-woven layer , or a woven layer whereinan additive having a surface area (BET) of from 10 to 5,000 sqm/g is provided on a surface of the battery separator that faces the positive electrode or on a surface of the battery separator that faces the negative electrode.26. The battery separator of claim 25 , wherein the additive has a surface area (BET) of from 500 to 3 claim 25 ,000 sqm/g.27. The battery separator of claim 25 , wherein the additive has a surface area (BET) of from 1 claim 25 ,500 to 3 claim 25 ,000 sqm/g.28. The battery separator of claim 25 , wherein the battery separator comprises a battery separator made of polyolefin.29. The battery separator of claim 25 , wherein the battery separator comprises a battery separator made of polyolefin laminated to a glass layer.30. The battery separator of claim 25 , wherein the battery separator comprises a battery separator made of polyolefin laminated to a non-woven.31. The battery separator of claim 25 , wherein the battery separator comprises a battery separator made of polyolefin laminated to a ...

alpha-ALUMINA, SLURRY, POROUS MEMBRANE, LAMINATED SEPARATOR, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME

An object of the present invention is to provide an alumina used for a slurry for reducing unevenness in a surface of a porous membrane. The present invention is an α-alumina wherein a crystallite size obtained by a Rietveld analysis is not greater than 95 nm, and a lattice strain obtained by the Rietveld analysis is not greater than 0.0020. A BET specific surface area by a nitrogen adsorption method of the α-alumina is preferably not greater than 10 m/g. A particle diameter D50 equivalent to 50% cumulative percentage by volume of the α-alumina is also preferably not greater than 2 μm. 1. An α-alumina whereina crystallite size obtained by a Rietveld analysis is not greater than 95 nm, anda lattice strain obtained by the Rietveld analysis is not greater than 0.0020.2. The α-alumina according to claim 1 , wherein a BET specific surface area by a nitrogen adsorption method is not greater than 10 m/g.3. The α-alumina according to claim 1 , wherein a particle diameter D50 equivalent to 50% cumulative percentage by volume is not greater than 2 μm.4. The α-alumina according to claim 1 , whereinthe crystallite size is not less than 50 nm and not greater than 95 nm, andthe lattice strain is not less than 0.0001 and not greater than 0.0010.5. A slurry comprising:{'claim-ref': {'@idref': 'CLM-00001', '#text': 'claim 1'}, '#text': 'the α-alumina according to ;'}a binder; anda solvent.6. A porous membrane comprising the α-alumina according to any .7. A laminated separator comprising:a separator; and{'claim-ref': {'@idref': 'CLM-00006', '#text': 'claim 6'}, '#text': 'the porous membrane, according to , laminated on at least one of surfaces of the separator.'}8. A nonaqueous electrolyte secondary battery comprising:a positive electrode;a negative electrode;a nonaqueous electrolyte; anda separator, wherein{'claim-ref': {'@idref': 'CLM-00006', '#text': 'claim 6'}, '#text': 'the porous membrane according to is formed on at least one of surfaces of the positive electrode, the negative ...

Separator for Lithium Secondary Battery, Method of Producing the Same, and Electrochemical Device Including the Same

Provided is a separator for a lithium secondary battery including a porous substrate and a coating layer including a binder and inorganic particles formed on one surface or both surfaces of the porous substrate. The binder is a binder including: (a) a (meth)acrylamide-based monomer polymerization unit, (b) a (meth)acryl-based monomer polymerization unit containing a hydroxyl group, and (c) a polyfunctional (meth)acrylamide-based monomer polymerization unit. The separator according to the present invention provides a separator for a lithium secondary battery having improved adhesive strength between the inorganic particles and the separator, showing a decreased interfacial resistance characteristic, and showing an improved air permeability.

DEVICE FOR ENGINE MONITORING

An air monitoring system measures tan amount of pollutant in the air. The system includes a plurality of air quality sensor devices arranged within a selected area. Each of the air quality sensor devices is configured to measure air pollutant levels in the selected area, and includes at least one sensor operatively coupled to a controller, wherein the controller is configured to receive a measured input from the at least one sensor. A wireless communication device is coupled to the controller, and is configured to communicate with a central server device. 1. A device for monitoring the function of an engine , the device comprising a housing mounted to the engine and further comprising:(a) a first power source;(b) one or more sensors, each of which detects an engine condition;(c) a transmitter for transmitting each of the detected engine conditions, the transmitter powered by the first power source;(d) a processor in communication with each of the one or more sensors, the processor configured to receive data regarding each of the engine conditions detected and converting the data into electronic signals that are transmitted by the transmitter;(e) a heat pipe that is at least partially contained within the housing, wherein the heat pipe has a first end, a second end, and a body portion, and the second end of the heat pipe is positioned adjacent a source of heat, and the heat pipe is configured to transmit heat from the second end through the body portion to the first end;(f) a thermal energy generator adjacent the first end of the heat pipe and being configured to receive heat from the first end of the heat pipe and convert it into electrical energy for recharging the first power source; and(g) thermally-conductive projections to dissipate heat.2. The device of that further includes a database for storing at least some of the detected engine conditions;3. The device of claim 2 , wherein the database is part of the processor.4. The device of claim 1 , wherein the ...

Separators, lead acid batteries, and methods and systems associated therewith

Disclosed herein are novel or improved separators, battery separators, lead acid battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, lead acid 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 water loss, reducing float current, minimizing internal resistance increase, reducing failure rate, reducing acid stratification and/or improving uniformity in at least lead acid batteries. 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 coatings, improved configurations, and/or the like.

ALUMINA, ALUMINA SLURRY, ALUMINA FILM, LAMINATE SEPARATOR, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF

Disclosed is alumina having a water desorption index H (=(V-V)÷V) of 0.15 or less in a water adsorption/desorption isotherm at 25° C., where Vrepresents a water adsorption amount [mg/g] per 1 g of alumina in the desorption isotherm at a relative water vapor pressure of 0.5, Vrepresents a water adsorption amount [mg/g] per 1 g of alumina in the adsorption isotherm at a relative water vapor pressure of 0.5, and Vrepresents a water adsorption amount [mg/g] per 1 g of alumina in the adsorption isotherm at a relative water vapor pressure of 0.9. 2. The alumina according to claim 1 , wherein a maximum value of absorbance at 3000 to 3200 cmis 0.30 or less in a transmission infrared absorption spectrum obtained by measuring a sample claim 1 , prepared using the alumina and having a diameter of 10 mmφ and a mass of 20 mg claim 1 , by Fourier transform infrared spectroscopy.3. The alumina according to claim 1 , containing one or more elements selected from the group consisting of K claim 1 , Mg claim 1 , Ca claim 1 , Sr claim 1 , Ba claim 1 , and La claim 1 , in which a total content of the element is 200 ppm by mass or more and 50000 ppm by mass or less.4. The alumina according to claim 1 , having a 10% particle diameter D10 of 0.25 μm or more in a volume-based cumulative particle size distribution.5. The alumina according to claim 1 , having a 90% particle diameter D90 of 3.0 μm or less in the volume-based cumulative particle size distribution.6. The alumina according to claim 1 , having a BET specific surface area of 1 m/g or more and 10 m/g or less.7. An alumina slurry comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the alumina according to ;'}a binder; anda solvent.8. An alumina film comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the alumina according to ; and'}a binder.9. A laminate separator comprising:a separator; and{'claim-ref': {'@idref': 'CLM-00008', 'claim 8'}, 'the alumina film according to formed on a surface of the separator.'}10. ...

Separator for electrochemical cell and method for its manufacture

An electrode/separator assembly for use in an electrochemical cell includes a current collector; a porous composite electrode layer adhered to the current collector, said electrode layer comprising at least electroactive particles and a binder; and a porous composite separator layer comprising inorganic particles substantially uniformly distributed in a polymer matrix to form nanopores and having a pore volume fraction of at least 25%, wherein the separator layer is secured to the electrode layer by a solvent weld at the interface between the two layers, said weld comprising a mixture of the binder and the polymer. Methods of making and using the assembly are also described.

Conducting polymers

There is described a process for forming a conformal film of conducting polymer onto one or more surfaces of a substrate by polymerising onto the one or more surfaces in a single step one or more conducting polymer precursors including one or more monomers in the presence of conductivity enhancing additives comprising one or more ionic liquids and one or more optional ionic dopants.

Bilayer electrolyte membrane and a redox flow battery comprising a bilayer electrolyte membrane

An electrolyte membrane and method for generating the membrane provide a resistance as low as possible to minimize ohmic losses. The membrane has a low permeability for redox-active species. If redox-active species still cross the membrane, this transport is balanced during charge and discharge preventing a net vanadium flux and associated capacity fading. The membrane is mechanically robust, chemically stable in electrolyte solution, and low cost. A family of ion exchange membranes including a bilayer architecture achieves these requirements. The bilayer membrane includes two polymers, i) a polymer including N-heterocycles with electron lone pairs acting as proton acceptor sites and ii) a mechanically robust polymer acting as a support, which can be a dense cation exchange membrane or porous support layer. This bilayer architecture permits a very thin polymer film on a supporting polymer to minimize ohmic resistance and tune electrolyte transport properties of the membrane.

Laminated oxidation protected separator

A battery separator for a lead acid battery addresses the issues of acid stratification and separator oxidation arising from contaminants. The separator includes a microporous membrane and a diffusive mat affixed thereto. The diffusive mat has a three hour wick of: at least about 2.5 cm. The diffusive mat may be made of synthetic fibers, glass fibers, natural fibers, and combinations thereof. The diffusive mat may include silica. The separator may include a rubber.

LITHIUM SECONDARY BATTERY

A lithium secondary battery includes a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separation layer interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide in which at least one metal forms a concentration gradient. The second cathode active material particle includes primary particles having different shapes or crystalline structures from each other. 1. A cathode active material for a lithium secondary battery , comprising: {'br': None, 'sub': x', 'a', 'b', 'c', 'y, 'LiM1M2M3O\u2003\u2003[Chemical Formula 1]'}, 'a first cathode active material particle represented by the following Chemical Formula 1;'}wherein in Chemical Formula 1, M1, M2 and M3 independently include at least one element selected from a group consisting of Ni, Co, Mn, Na, Mg, Ca, Ti, V, Cr, Cu, Zn, Ge, Sr, Ag, Ba, Zr, Nb, Mo, Al, Ga and B,0 Подробнее

COMPOSITE LAYERS OR SEPARATORS FOR LEAD ACID BATTERIES

Disclosed herein are novel or improved fibrous layers, composites, composite separators, separators, composite mat separators, composite mat separators containing fibers and silica particles, battery separators, lead acid battery separators, and/or flooded lead acid battery separators, and/or batteries, cells, and/or methods of manufacture and/or use of such fibrous layers, composites, composite separators, separators, battery separators, lead acid battery separators, cells, and/or batteries. In addition, disclosed herein are methods, systems, and battery separators for enhancing battery life, reducing internal resistance, reducing metalloid poisoning, reducing acid stratification, and/or improving uniformity in at least enhanced flooded batteries. 135.-. (canceled)36. A battery separator comprising embossed ribs or other embossments , and wherein the battery separator comprises fibers.37. The battery separator of claim 36 , wherein the battery separator comprises embossed ribs.38. The battery separator of claim 36 , wherein the fibers comprise glass fibers claim 36 , synthetic fibers claim 36 , ceramic fibers claim 36 , or combinations thereof.39. The battery separator of claim 38 , wherein the fibers comprise glass fibers.40. The battery separator of claim 38 , wherein the fibers comprise glass fibers and synthetic fibers.41. The battery separator of claim 36 , comprising fibers claim 36 , silica claim 36 , and binder.42. The battery separator of claim 41 , wherein the fibers comprise glass fibers claim 41 , synthetic fibers claim 41 , ceramic fibers claim 41 , or combinations thereof.43. The battery separator of claim 42 , wherein the fibers comprise glass fibers and synthetic fibers.44. The battery separator of claim 41 , wherein the silica is flocculated silica.45. The battery separator of claim 41 , wherein the binder is a resin binder or a polymeric binder.46. An AGM Battery comprising the battery separator of .47. An AGM Battery comprising the battery ...

POLYIMIDE COATED SEPARATORS, POROUS POLYIMIDE COATINGS, LITHIUM BATTERIES, AND RELATED METHODS

The instant disclosure or invention is preferably directed to a polyimide coated membrane, separator membrane, or separator for a lithium battery such as a high energy or high voltage rechargeable lithium battery and the corresponding battery. The separator preferably includes a porous or microporous polyimide coating or layer on at least one side of a polymeric microporous layer, membrane or film. The polyimide coating or layer may include other polymers, additives, fillers, or the like. The polyimide coating may be adapted, for example, to provide oxidation resistance, to block dendrite growth, to add dimensional and/or mechanical stability, to reduce shrinkage, to add high temperature performance (HTMI function), to prevent electronic shorting at temperatures above 200 deg C., and/or the like. The microporous polymeric base layer may be adapted, at least, to hold liquid, gel, or polymer electrolyte, to conduct ions, and/or to block ionic flow between the anode and the cathode in the event of thermal runaway (shutdown function). The polyimide coated separator may be adapted, for example, to keep the electrodes apart at high temperatures, to provide oxidation resistance, to block dendrite growth, to add dimensional stability, to reduce shrinkage, to add high temperature performance (HTMI function), to prevent electronic shorting at temperatures above 200 deg C., to increase puncture strength, and/or to block ionic flow between the anode and the cathode in the event of thermal runaway (shutdown function). Although secondary lithium battery usage may be preferred, the instant polyimide coated membrane may be used in a battery, cell, primary battery, capacitor, fuel cell, textile, filter, and/or composite, and/or as a layer or component in other applications, devices, and/or the like. 1. A polyimide coated separator for a high energy or high voltage rechargeable lithium battery , comprising:a microporous polymeric layer, membrane or film, anda polyimide coating or ...

MULTILAYER NANOPOROUS SEPARATOR

A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer; and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm. 1. A separator for use in a lithium battery comprising:(a) a porous polymeric layer, which porous polymeric layer comprises a plurality of pores, and(b) 0.27 grams, or greater, per square meter of boehmite particles disposed within the plurality of pores of the porous polymeric layer.2. The separator of claim 1 , wherein the boehmite particles comprise hydrophobic boehmite particles.3. The separator of claim 2 , wherein the hydrophobic boehmite particles comprise a reaction product of an organic carbonate with boehmite.4. The separator of claim 3 , wherein the organic carbonate is ethylene carbonate.5. The separator of claim 3 , wherein the organic carbonate is fluoroethylene carbonate.6. The separator of claim 2 , wherein the hydrophobic boehmite particles comprise an organic polymer chemically reacted to at least a portion of the boehmite of said boehmite particles.7. The separator of claim 1 , wherein an average crystallite size of said boehmite particles disposed within the pores of said porous polymeric layer is between 5 nm and 25 nm.8. The separator of claim 1 , wherein an average crystallite size of said boehmite particles disposed within the pores of said porous polymeric layer is between 5 nm and 8 nm.9. The separator of claim 1 , wherein the separator further comprises a nanoporous layer adjacent at least one of two opposing sides of the porous polymeric layer claim 1 , wherein said nanoporous layer comprises boehmite particles and one or more organic polymer binders.10. The separator of claim 9 , wherein the boehmite particles of said ...

Film-stretching apparatus and method of producing film

A film-stretching apparatus in accordance with an embodiment of the present invention includes a stretching furnace which is divided into a plurality of air amount control zones. In a case where the number of the plurality of air amount control zones is seven, a total amount of air to be discharged from, out of the plurality of air amount control zones, three air amount control zones which are located on an entrance side of the stretching furnace is controlled so as to be larger than a total amount of air to be discharged from, out of the plurality of air amount control zones, three air amount control zones which are located on an exit side of the stretching furnace.

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.

Additive to ceramic ion conducting material to mitigate the resistive effect of surface carbonates and hydroxides

A method of modifying a carbonate layer formed on a surface of an electrochemical cell component is provided. The surface includes a ceramic oxide. The carbonate layer includes a carbonate and is substantially non-conductive to lithium ions and sodium ions. The method includes contacting the carbonate layer with a modifying agent to form a mixture and causing the modifying agent to incorporate into the carbonate layer and form a modified hybrid layer including a eutectic mixture of the modifying agent and the carbonate. The modified hybrid layer is conductive to lithium ions and sodium ions.

SEPARATOR FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to a separator for a lithium secondary battery, and a lithium secondary battery including the same, the separator including a porous substrate and a coating layer located on at least one surface of the porous substrate, wherein the coating layer includes a heat-resistant binder including a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylonitrile, and a third structural unit derived from (meth)acrylaminosulfonic acid, a (meth)acrylaminosulfonate or a combination thereof; an adhesive binder having a core-shell structure; and inorganic particles, wherein the adhesive binder has an average particle diameter of 0.2 μm to 1.0 μm, and the inorganic particles have an average particle diameter of 0.2 μm to 1.0 μm. 1. A separator for a lithium secondary battery , comprisinga porous substrate, anda coating layer on at least one surface of the porous substrate,wherein the coating layer includesa heat-resistant binder including a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylonitrile, and a third structural unit derived from (meth)acrylamidosulfonic acid, a (meth)acrylamidosulfonate salt, or a combination thereof;an adhesive binder having a core-shell structure; andinorganic particles;wherein the adhesive binder has an average particle diameter of 0.2 μm to 1.0 μm, andthe inorganic particles have an average particle diameter of 0.2 μm to 1.0 μm.2. The separator of claim 1 , wherein the adhesive binder is a (meth)acrylic polymer including a structural unit derived from (meth)acrylic acid or (meth)acrylate and structural unit derived from a monomer having a polymerizable unsaturated group.3. The separator of claim 2 , wherein the monomer having the polymerizable unsaturated group is at least one selected from a styrene-based monomer claim 2 , an acid-derived monomer claim ...

POLYOLEFIN MICRO-POROUS FILM AND POWER-STORAGE DEVICE

This polyolefin micro-porous film includes a multilayered structure, wherein the multilayered structure contains a first layer composed of polypropylene resin, a second layer composed of polyethylene resin and provided on the first layer, and a third layer composed of polypropylene resin and provided on the second layer. Furthermore, a thickness of the first layer is thinner than a thickness of the second layer, a thickness of the third layer is thinner than the thickness of the second layer, and in the multilayered structure, a thickness is 16 μm or less, a porosity is 40 to 70%, and a surface opening ratio is 10 to 30%. 1. A polyolefin micro-porous film comprising a multilayered structure , wherein the multilayered structure includes:a first layer composed of polypropylene resin;a second layer composed of polyethylene resin and provided on the first layer; anda third layer composed of polypropylene resin and provided on the second layer,wherein a thickness of the first layer is thinner than a thickness of the second layer,wherein a thickness of the third layer is thinner than the thickness of the second layer, andwherein in the multilayered structure, a thickness is 16 μm or less, a porosity is 40 to 70%, and an surface opening ratio is 10 to 30%.3. The polyolefin micro-porous film according to claim 1 , wherein claim 1 , when the thickness of the first layer and the thickness of the third layer are 1 claim 1 , the thickness of the second layer is 2 or more.4. The polyolefin micro-porous film according to claim 1 , wherein 1 , in a short circuit test in which a voltage is applied to a test plate having a size of 10 cm×100 cm 1 , a withstand voltage per unit area obtained by measuring a voltage in a non-conducting state is 3 kV/mor more.5. A power-storage device comprising the polyolefin micro-porous film according to claim 1 , wherein the polyolefin micro-porous film is provided between electrodes.6. The polyolefin micro-porous film according to claim 2 , wherein ...

IONICALLY CONDUCTIVE THIN FILM COMPOSITE MEMBRANES FOR ENERGY STORAGE APPLICATIONS

An ionically conductive thin film composite (TFC) membrane is described. The low cost, high performance TFC membrane comprises a micropous support membrane, and a hydrophilic ionomeric polymer coating layer on a surface of the microporous support membrane. The hydrophilic ionomeric polymer coating layer is ionically conductive. The ionomeric polymer can also be present in the micropores of the support membrane. Methods of making the membrane and redox flow battery system incorporating the TFC membrane are also described.

Battery unit and secondary battery

According to an embodiment, a battery unit is provided. The battery unit includes an electrode structure and a substrate. The electrode structure includes a first electrode and an organic fiber film. The first electrode includes an active material-containing layer. The organic fiber film is provided on the active material-containing layer. The substrate is in contact with the organic fiber film. A coefficient of kinetic friction between the electrode structure and the substrate is 0.8 or less. Elongation amount S of the organic fiber film and thickness T of the first electrode satisfies the following equation (1): S≥π×T /4  (1)

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.

LAMINATE FOR NON-AQUEOUS SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND NON-AQUEOUS SECONDARY BATTERY

Disclosed is laminate for a non-aqueous secondary battery which may be prevented from undergoing blocking. The laminate comprises a non-porous substrate layer, and an adhesive layer formed on a surface on one side of the substrate layer, wherein a surface roughness of the surface on the one side of the substrate layer is greater than a surface roughness of a surface on the other side of the substrate layer. Preferably, the surface roughness of the surface on the one side of the substrate layer is 0.20 μm or more and 2.00 μm or less. Preferably, the surface roughness of the surface on the other side of the substrate layer is 0.01 μm or more and 0.15 μm or less. 1. A laminate for a non-aqueous secondary battery , comprising:a non-porous substrate layer; andan adhesive layer formed on a surface on one side of the substrate layer,wherein a surface roughness of the surface on the one side of the substrate layer is greater than a surface roughness of a surface on the other side of the substrate layer.2. The laminate for a non-aqueous secondary battery of claim 1 , whereinthe surface roughness of the surface on the one side of the substrate layer is 0.20 μm or more and 2.00 μm or less.3. The laminate for a non-aqueous secondary battery of claim 1 , whereinthe surface roughness of the surface on the other side of the substrate layer is 0.01 μm or more and 0.15 μm or less.4. The laminate for a non-aqueous secondary battery of claim 1 ,wherein the adhesive layer comprises organic particles, andthe organic particles are made of a polymer which comprises 1% by mass or more and 70% by mass or less of a nitrile group-containing monomer unit.5. The laminate for a non-aqueous secondary battery of claim 1 , whereinthe adhesive layer has a thickness of 0.01 μm or more and 10.0 μm or less.6. A non-aqueous secondary battery claim 1 , comprising:a structure wherein a positive electrode which includes a positive electrode current collector and a positive electrode mixed material layer ...

SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY FUNCTIONAL LAYER, SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY

Provided is a slurry composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that has excellent adhesiveness after immersion in electrolyte solution and can cause a secondary battery to display excellent rate characteristics and cycle characteristics while, on the other hand, reducing the amount of gas remaining inside the secondary battery. The slurry composition contains a particulate polymer and a solvent. 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 particulate polymer has a glass-transition temperature of 20° C. or higher and has a surface acid content of not less than 0.05 mmol/g and not more than 0.50 mmol/g.

ELECTROCHEMICAL DEVICE

An electrochemical device includes a cathode, an anode and a separator, the separator being disposed between the cathode and the anode, the separator including a porous substrate and a porous layer, and the porous layer being disposed on a surface of the porous substrate and including inorganic particles and a binder, where a ratio of a puncture elongation of the porous substrate to a puncture force of the porous substrate is about 1.5 mm/N to about 25 mm/N. A lithium-ion battery including the separator, provided by the present application, improves the safety performance of the lithium-ion battery.

FRICTION ENHANCING CORE SURFACE OF BATTERY SEPARATOR ROLL AND RELATED METHODS

Rolls of battery separator material and related methods are disclosed. A roll of battery separator material includes a core including an outside surface, a separator material rolled around the core, and a friction enhancing surface on at least a portion of the outside surface of the core to prevent the separator material from lateral migration relative to the outside surface of the core.

Separator for lithium secondary battery with improved adhesiveness towards electrode and resistance characteristics and lithium secondary battery comprising the separator

The present disclosure relates to a separator for a lithium secondary battery comprising a porous substrate, and a porous coating layer disposed on at least one surface of the porous substrate and comprising inorganic particles and binder polymer, wherein the binder polymer is terpolymer including 65 to 90 weight % of a repeat unit derived from vinylidenefluoride (VDF), 1 to 28 weight % of a repeat unit derived from hexafluoropropylene (HFP) and 5 to 28 weight % of a repeat unit derived from chlorotrifluoroethylene (CTFE), and the separator has adhesiveness towards electrode ranging from 30 gf/25 mm to 150 gf/25 mm and machine direction (MD) thermal shrinkage of 1 to 18% and transverse direction (TD) thermal shrinkage of 1 to 17%, and a lithium secondary battery comprising the same, wherein the separator has uniform micropores on the surface, and thus has the increased adhesive surface area with electrode and consequential improved adhesiveness towards electrode.

Separator for electrochemical device and method for manufacturing the same

A separator for an electrochemical device. The separator includes a porous coating layer formed from an acid, which is crosslinkable. As a result, the separator has increased heat resistance, safety and physical strength, shows improved peel strength between the porous substrate and the porous coating layer, and prevents separation of the inorganic particles from the porous coating layer. In addition, the separator shows an improved crosslinking degree so that the added amount of a crosslinkable binder resin may be reduced. Thus, it is possible to increase the added amount of a non-crosslinkable resin, inorganic particles, or both. Even when using a small amount of a crosslinkable binder resin, it is possible to provide both an effect of improving heat resistance and an effect of improving adhesion.

Microporous membranes, separators, lithium batteries, and related methods

In accordance with at least selected embodiments, novel or improved separator membranes, separators, batteries including such separators, methods of making such membranes and/or separators, and/or methods of using such membranes and/or separators are disclosed or provided. In accordance with at least certain embodiments, an ionized radiation treated microporous polyolefin, polyethylene (PE), copolymer, and/or polymer blend (e.g., a copolymer or blend comprising PE and another polymer, such as polypropylene (PP)) battery separator for a secondary or rechargeable lithium battery and/or a method of making an ionized radiation treated microporous battery separator is disclosed. The ionized radiation treatment may provide a microporous membrane or battery separator having a lower onset temperature of thermal shutdown, an extended thermal shutdown window, physical, dimensional, and/or mechanical integrity maintained at higher temperatures, improved battery safety performance in a rechargeable lithium battery, a treated polyethylene separator membrane with the high temperature performance of a polypropylene membrane or separator membrane, or polypropylene-based trilayer product (by way of example only, a trilayer membrane made of two polypropylene layers with a polyethylene layer in between), reduced thermal shrinkage resulting in both improved thermal stability and high temperature physical integrity, which maintains the separation of cathode and anode in a battery system and avoids thermal runaway in a rechargeable or secondary lithium battery, and/or combinations thereof.

Composition for electricity storage devices, slurry for electricity storage devices, electrode for electricity storage devices, separator for electricity storage devices, and electricity storage device

An electrical storage device composition can produce an electrode and a separator that exhibit excellent blocking resistance, and can effectively prevent displacement (i.e., achieves moderate blocking) when stacking an electrode and a separator. The electrical storage device composition includes a binder, an anti-blocking agent, and a liquid medium, the content (M1 parts by mass) of the binder and the content (M2 parts by mass) of the anti-blocking agent in the electrical storage device composition satisfying the relationship “1<M1/M2<4,000”.

Lithium metal electrode and its related lithium metal battery

A lithium metal electrode and its related lithium metal battery is disclosed in the present invention. The lithium metal electrode comprises a current collector, a porous electrical insulation layer, an ionic diffusion layer and a lithium metal layer. The porous electrical insulation layer comprises an insulation layer having larger through holes and an inhibition layer having smaller through holes. The current collector is disposed on one side of the insulation layer and the inhibition layer is disposed on another side of the insulation layer. The lithium dendrites will mostly plate in the through holes of the insulation layer and will not plate upwards due to the inhibition layer. Hence, the lithium dendrites will not penetrate through the electrical insulator so that the safety of the lithium metal battery can be improved greatly.

Film from graft copolymer having a polypropylene backbone, and nanoporous polypropylene membrane

The invention relates to a film Film comprising a random graft copolymer having a polypropylene (PP) backbone and from 3 to 8 polyester segments covalently bonded to said backbone, wherein the number average molecular weight (Mn) of the polypropylene backbone ranges between 10.000 and 100.000 Dalton (as determined with HT-SEC in o-DCB at 150° C.), wherein the Mn of each polyester segment ranges between 5.000 and 25.000 Daltons, wherein the amount of PP ranges between 45 and 80 mol %, wherein the amount of polyester segments ranges between 55 and 20 mol %, wherein the film has a thickness in the range of 0.01-10 mm, wherein the polypropylene and polyester domains form independently continuous phases, and wherein the mol % is calculated relative to the total moles of monomer units present in the copolymer. The invention further relates to a nano porous PP membrane and its use.

Separation membrane for lithium secondary battery and lithium secondary battery including same

The present invention provides a separation membrane for a lithium secondary battery and a lithium secondary battery including the same, the separation membrane including: a substrate; a first coating layer containing a first organic binder which is able to be bonded to a gel polymer electrolyte through an epoxy ring-opening reaction; and a second coating layer containing a second organic binder, wherein the first organic binder has a functional group capable of ring-opening reaction with an epoxy group, or a combination thereof, and the gel polymer electrolyte is formed by polymerizing an oligomer having an epoxy group, a functional group capable of ring-opening reaction with an epoxy group, or a combination thereof.

Porous film, separator for rechargeable battery, and rechargeable battery

At low cost, a porous film has high thermal film rupture resistance and outstanding battery characteristics. The porous film has a porous layer on at least one surface of a porous substrate, and if the surface porosity of the porous layer is defined as α and the cross-sectional void ratio of the porous layer is defined as β, then α/β does not exceed 90%.

Protective layers for electrochemical cells

Articles and methods including layers for protection of electrodes in electrochemical cells are provided. As described herein, a layer, such as a protective layer for an electrode, may comprise a plurality of particles (e.g., crystalline inorganic particles, amorphous inorganic particles). In some embodiments, at least a portion of the plurality of particles (e.g., inorganic particles) are fused to one another. For instance, in some embodiments, the layer may be formed by aerosol deposition or another suitable process that involves subjecting the particles to a relatively high velocity such that fusion of particles occurs during deposition. In some embodiments, the layer (e.g., the layer comprising a plurality of particles) is an ion-conducting layer.

Polyolefin Separator and Method for Manufacturing the Same

A polyolefin separator is provided in the present disclosure. The polyolefin separator includes a polyolefin porous substrate including a plurality of fibrils and pores formed by the fibrils draped across one another. A coating layer surrounding the outer side of the fibrils is contained in the polyolefin porous substrate and the coating layer includes a crosslinked polymer, wherein the polyolefin separator having the coating layers has a change in air permeability of 20% or less and a change in basis weight of 4% or less, as compared to the polyolefin porous substrate. A method for manufacturing the polyolefin separator and a secondary battery including the polyolefin separator are also disclosed. 1. A polyolefin separator , comprising:a polyolefin porous substrate comprising a plurality of fibrils and pores formed by the fibrils draped across one another; anda coating layer surrounding an outer side of the fibrils contained in the polyolefin porous substrate and the coating layer comprising a crosslinked polymer,wherein the polyolefin separator having the coating layers has a change in air permeability of 20% or less and a change in basis weight of 4% or less, as compared to the polyolefin porous substrate.2. The polyolefin separator according to claim 1 , wherein the crosslinked polymer is formed by UV curing of a crosslinking agent and photoinitiator.3. The polyolefin separator according to claim 1 , wherein the polyolefin separator having the coating layers has a change in air permeability of 3-20% and a change in basis weight of 0.5-4% claim 1 , as compared to the polyolefin porous substrate.4. A method for manufacturing a polyolefin separator claim 1 , comprising:preparing a photocurable composition containing a crosslinking agent, a photoinitiator and a solvent;dipping a polyolefin porous substrate comprising a plurality of fibrils in the photocurable composition and drying the polyolefin porous substrate at room temperature so that the photocurable ...

Battery separator for extending the cycle life of a battery

A battery separator for extending the cycle life of a battery has a separator and a conductive layer. The conductive layer is disposed upon the separator. The conductive layer is adapted to be in contact with the positive electrode of the battery thereby providing a new route of current to and from the positive electrode.

Multilayer porous film, separator for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery

Provided is a multilayer porous film that has extremely high powder fall-off resistance and superior electrolyte solution adsorptivity and heat resistance and exhibits superior properties when used as a battery separator without decreasing the high air permeability of a porous film. The multilayer porous film includes a polyolefin-based resin porous film and a coating layer containing a filler and a resin binder on at least one surface of the polyolefin-based resin porous film. The amount of particles with particle sizes of less than 0.2 μm (D 0.2 ) in the filler is 1% or more, and the specific surface area of the filler is 5 m 2 /g or more and less than 10 m 2 /g. The multilayer porous film satisfies a particular condition.

New or improved microporous membranes, battery separators, coated separators, batteries, and related methods

This application is directed to new and/or improved MD and/or TD stretched and optionally calendered membranes, separators, base films, microporous membranes, battery separators including said separator, base film or membrane, batteries including said separator, and/or methods for making and/or using such membranes, separators, base films, microporous membranes, battery separators and/or batteries. For example, new and/or improved methods for making microporous membranes, and battery separators including the same, that have a better balance of desirable properties than prior microporous membranes and battery separators. The methods disclosed herein comprise the following steps: 1.) obtaining a non-porous membrane precursor; 2.) forming a porous biaxially-stretched membrane precursor from the non-porous membrane precursor; 3.) performing at least one of (a) calendering, (b) an additional machine direction (MD) stretching, (c) an additional transverse direction (TD) stretching, and (d) a pore-filling on the porous biaxially stretched precursor to form the final microporous membrane. The microporous membranes or battery separators described herein may have the following desirable balance of properties, prior to application of any coating: a TD tensile strength greater than 200 or 250 kg/cm2, a puncture strength greater than 200, 250, 300, or 400 gf, and a JIS Gurley greater than 20 or 50 s.

Method for producing functional film, control device, and control method

A coating amount is adjusted based on a result of the inspecting step, then the coating amount is not adjusted during a standby period (Wt) which is a time taken to transfer the film from a coating section ( 21 ) to an inspecting section ( 26 ), and then the coating amount is adjusted based on the result of the inspecting step after the standby period has elapsed. With the configuration, an amount of a coating layer on a film base material is stabilized.

LAYERED ELECTRODE BODY AND BONDING DEVICE FOR LAYERED ELECTRODE BODY

A layered electrode body manufacturing device comprising: a negative electrode cut drum cuts a negative electrode single plate at a first width, generates a negative electrode plate, and conveys same; a negative electrode heat drum heats the negative electrode plate; a positive electrode cut drum cuts a positive electrode single plate at a second width, generates a positive electrode plate, and conveys same; a positive electrode heat drum heats the positive electrode plate; and a bonding drum which positions the negative electrode plate on a first separator single plate, positions a second separator single plate thereon, and positions and bonds the positive electrode plate thereon. The pressing forces between the bonding drum, and the negative and positive electrode heat drums are adjusted. At least a portion of two sides from the outer edge part of the electrode plate is bonded to a separator, and the other two sides are not. 1. A layered electrode assembly in which an electrode plate of a quadrangular shape and a separator of a quadrangular shape are layered , whereinat least a part of two sides among four sides of an outer edge portion of the electrode plate is adhered to the separator, andthe other two sides among the four sides of the outer edge portion of the electrode plate are not adhered to the separator.2. A layered electrode assembly in which a positive electrode of a quadrangular shape and a negative electrode of a quadrangular shape are layered with a separator of a quadrangular shape therebetween , whereinat least a part of two sides among four sides of an outer edge portion of the negative electrode is adhered to the separator,the other two sides among the four sides of the outer edge portion of the negative electrode are not adhered to the separator,at least a part of two sides among four sides of an outer edge portion of the positive electrode is adhered to the separator, andthe other two sides among the four sides of the outer edge portion of the ...

ELECTRODE ASSEMBLY, LAMINATION DEVICE FOR MANUFACTURING THE ELECTRODE ASSEMBLY, AND METHOD FOR MANUFACTURING THE ELECTRODE ASSEMBLY

Discussed are an electrode assembly in which a bonding area of an electrode is minimized to reduce defects that may occur in a manufacturing process, a lamination device for manufacturing the electrode assembly, and a method for manufacturing the electrode assembly. The electrode assembly includes one or more radical units, each of which includes a plurality of electrodes and a plurality of separators, and a sealing part in which both ends of each of the plurality of electrodes and each of the plurality of separators are bonded to each other. 1. An electrode assembly comprising:one or more radical units, each of which comprises:a plurality of electrodes and a plurality of separators; anda sealing part in which both ends of each of the plurality of electrodes and each of the plurality of separators are bonded to each other.2. The electrode assembly of claim 1 , wherein the sealing part of each of the radical units is provided at a side of an electrode on which an electrode tab is disposed claim 1 , among the plurality of electrodes.3. The electrode assembly of claim 1 , further comprising a coating material in which ceramics and a binder are mixed claim 1 , the coating material being applied to only a portion corresponding to the sealing part on a separator of the radical units claim 1 , among the plurality of separators.4. A lamination device for manufacturing an electrode assembly claim 1 , the lamination device comprising:a transfer unit configured to transfer an electrode stack, in which a plurality of electrodes and a separator having a length longer than a width thereof are alternately stacked; anda sealing unit configured to press and seal both ends of the electrode stack transferred by the transfer unit.5. The lamination device of claim 4 , wherein the sealing unit presses and seals both of the ends of the electrode stack through spinning of the sealing unit.6. The lamination device of claim 4 , wherein the sealing unit is constituted by a pair of rollers ...

Separator for Power Storage Device

The purpose of the present invention is to provide a separator which is for a power storage device, and which has high strength and can be thinned. The separator for a power storage device has a microporous membrane containing polyolefin as a main component, wherein the melt tension of the microporous membrane as measured at a temperature of 230° C. is 30 mN or less, and the melt flow rate (MFR) of the microporous membrane as measured under a load of 2.16 kg and at a temperature of 230° C. is 0.9 g/10 min or less. 1: A separator for a power storage device , comprising a microporous membrane containing a polyolefin as a primary component , whereina melt tension of the microporous membrane measured at a temperature of 230° C. is 30 mN or less, anda melt flow rate (MFR) of the microporous membrane measured under a load of 2.16 kg at a temperature of 230° C. is 0.9 g/10 min or less.2: The separator for a power storage device according to claim 1 , wherein an area ratio (MD/TD) of (110) crystal peak as measured by wide-angle X-ray scattering of the microporous membrane containing a polyolefin as a primary component is 1.3 or more.3: The separator for a power storage device according to claim 1 , wherein the polyolefin is polypropylene claim 1 , and the MFR of the polypropylene measured under a load of 2.16 kg at a temperature of 230° C. is 0.3 to 0.9 g/10 min.4: The separator for a power storage device according to claim 3 , wherein a pentad fraction of the polypropylene as measured by C-NMR (nuclear magnetic resonance) is 95.0% or more.5: The separator for a power storage device according to claim 4 , wherein the pentad fraction of the polypropylene is 97.0% or more.6: The separator for a power storage device according to claim 1 , wherein the melt tension of the microporous membrane is 20 mN to 30 mN.7: The separator for a power storage device according to claim 1 , wherein a value (Mw/Mn) obtained by diving the weight average molecular weight (Mw) of the polypropylene ...

Polyamide-imide coated separators for high energy rechargeable lithium batteries

The instant disclosure or invention is preferably directed to a polyamide-imide coated membrane, separator membrane, or separator for a lithium battery such as a high energy or high voltage rechargeable lithium battery and the corresponding battery. The separator preferably includes a porous or microporous polyamide-imide coating or layer on at least one side of a polymeric microporous layer, membrane or film. The polyamide-imide coating or layer may include other polymers, additives, fillers, or the like. The polyamide-imide coating may be adapted, for example, to provide oxidation resistance, to block dendrite growth, to add dimensional and/or mechanical stability, to reduce shrinkage, to add high temperature performance (HTMI function), to prevent electronic shorting at temperatures above 200 deg C., and/or the like. The microporous polymeric base layer may be adapted, at least, to hold liquid, gel, or polymer electrolyte, to conduct ions, and/or to block ionic flow between the anode and the cathode in the event of thermal runaway (shutdown function). The polyamide-imide coated separator may be adapted, for example, to keep the electrodes apart at high temperatures, to provide oxidation resistance, to block dendrite growth, to add dimensional stability, to reduce shrinkage, to add high temperature performance (HTMI function), to prevent electronic shorting at temperatures above 200 deg C., to increase puncture strength, and/or to block ionic flow between the anode and the cathode in the event of thermal runaway (shutdown function). Although secondary lithium battery usage may be preferred, the instant polyamide-imide coated membrane may be used in a battery, cell, primary battery, capacitor, fuel cell, textile, filter, and/or composite, and/or as a layer or component in other applications, devices, and/or the like.