УЛУЧШЕННЫЕ ГИДРОФИЛЬНЫЕ КОМПОЗИЦИИ

Настоящее изобретение относится к способу образования сшитого электронно-активного гидрофильного сополимера, смеси сомономеров и суперконденсатору. Указанный способ включает стадии: a. смешивание электронно-активного по своей природе материала и по меньшей мере одного соединения формулы (I) с водой для образования промежуточной смеси;b. добавление по меньшей мере одного гидрофильного мономера, по меньшей мере одного гидрофобного мономера и по меньшей мере одного сшивающего агента к промежуточной смеси для образования смеси сомономеров; c. полимеризация смеси сомономеров. Соединение формулы (I) представляет собой соединение, в котором R1и R2представляют собой независимо необязательно замещенный С1-С6алкил, где заместитель выбран из одного или более гидроксила, галогена, NH2, NO2, СН3О, CO2H, СОООН, NR, NRR', NHCOR и RSH, где R и R' представляют собой С1-С6алкил, X-представляет собой анион. Электронно-активный по своей природе материал выбран из полиэтилендиокситиофен:полистиролсульфоната ...

КОМПОЗИЦИЯ, ПРИГОДНАЯ В КАЧЕСТВЕ ТВЕРДОГО ЭЛЕКТРОЛИТА ИЛИ СЕПАРАТОРА ДЛЯ ЭЛЕКТРОХИМИЧЕСКИХ ЭЛЕМЕНТОВ

Предложена композиция для электродов, твердого электролита или сепаратора для электрохимических элементов, содержащая смесь, состоящую из 1-95 мас.% твердого вещества, предпочтительно неорганического твердого вещества с размером первичных частиц от 5 нм до 20 мкм и 5-99 мас.% полимерной массы, получаемой полимеризацией 5-100 мас.%, в пересчете на массу продукта конденсации из многоатомного спирта, по меньшей мере, одного соединения, способного реагировать с карбоновой или сульфоновой кислотой, или их производным, или смесью двух или более из них, и, по меньшей мере, 1 моля на моль соединения карбоновой или сульфоновой кислоты, имеющей, по меньшей мере, одну радикально полимеризуемую функциональную группу, или их производного, или смеси двух или более их них, и 0-95 мас.%, в пересчете на массу одного соединения со средней (среднечисловой) молекулярной массой, по меньшей мере, 5000 с полиэфирными сегментами в главной или боковой цепи, причем массовая доля смеси в композиции составляет 1 - ...

КАТОДНАЯ СМЕСЬ ДЛЯ ИСПОЛЬЗОВАНИЯ В БИОСОВМЕСТИМОЙ БАТАРЕЕ

Изобретение относится к области электротехники, а именно к катодной смеси для использования в биосовместимой батарее. Описаны также способы и аппарат для образования биосовместимых элементов питания. В некоторых примерах способы и аппарат для образования биосовместимых элементов питания включают формирование полостей, содержащих активные химические вещества катода. Активные элементы катода и анода герметизированы с помощью биосовместимого материала. Предложена катодная смесь, содержащая оксид переходного металла, например диоксид марганца, гидрофобное связующее вещество, содержащее полиизобутилен, растворитель и модификации углерода, при этом катодная смесь способна заполнять полость в слоистой структуре за счет своих реологических свойств, сохраняя биосовместимость и электропроводность. В некоторых примерах область применения способов и аппарата может включать различные биосовместимое устройство или продукт, для которых необходимы элементы питания. Повышение безопасности и надежности при ...

БАТАРЕЯ НА ОСНОВЕ СЕРАОРГАНИЧЕСКИХ СОЕДИНЕНИЙ

Изобретение относится к раствору жидкого или гелеобразного электролита, содержащего по меньшей мере один безводный полярный беспротонный растворитель или полимер, по меньшей мере одну проводящую соль и по меньшей мере одно сераорганическое соединение, содержащее по меньшей мере один органический фрагмент и по меньшей мере одну -S-Sn-связь, где n равно целому числу от 2 до 5, причем указанные сераорганические соединения содержат одну или несколько серосодержащих функциональных групп, выбранных из группы, состоящей из дитиоацеталя, дитиокеталя, тритиоортокарбоксилата, ароматического полисульфида, полиэфир-полисульфида, полисульфид-кислой соли, органополисульфида, содержащего тритиокарбонатную функциональную группу, органо- или органометаллического полисульфида, содержащего дитиокарбонатную функциональную группу, органо- или металлоорганического полисульфида, содержащего монотиокарбонатную функциональную группу, и металлоорганического полисульфида, содержащего тритиокарбонатную функциональную ...

СТРУКТУРА ЭЛЕКТРОДНОГО СЛОЯ ИЗ ШАРИКОВ АКТИВНОГО МАТЕРИАЛА

Изобретение относится к структуре электродного слоя, в частности к структуре электродного слоя из шариков активного материала. Структура электродного слоя из шариков активного материала в основном включает шарики из активного материала, изготовленные из частиц активного материала, первый смешанный электролит, расположенный внутри шариков из активного материала, и второй смешанный электролит, расположенный снаружи шариков из активного материала. Первый смешанный электролит в основном состоит из деформируемого электролита. Второй смешанный электролит в основном состоит из электролита с относительно меньшей деформационной способностью, чем деформируемый электролит первого смешанного электролита. Первый смешанный электролит шариков активного материала используется в изобретении для эффективного уменьшения производных проблем изменения объема активных материалов. Кроме того, различная конфигурация первого смешанного электролита и второго смешанного электролита внутри и снаружи шариков активного ...

ЭЛЕКТРИЧЕСКИЙ АККУМУЛЯТОР

АНОДЫ ДЛЯ ЛИТИЙ-ИОННОГО АККУМУЛЯТОРА, СОДЕРЖАЩИЕ ЧАСТИЦЫ ГРАФЕНОВОГО УГЛЕРОДА

БАТАРЕЯ НА ОСНОВЕ СЕРАОРГАНИЧЕСКИХ СОЕДИНЕНИЙ

СПОСОБ ИЗГОТОВЛЕНИЯ БИОСОВМЕСТИМОЙ КАТОДНОЙ СУСПЕНЗИИ ДЛЯ ИСПОЛЬЗОВАНИЯ В БИОСОВМЕСТИМЫХ БАТАРЕЯХ ДЛЯ КОНТАКТНОЙ ЛИНЗЫ

ЭЛЕКТРОД И СПОСОБ ЕГО ПРОИЗВОДСТВА

... 1. Электрод, включающий в себя:проводящий токосъемник, имеющий слой смолы; ислой активного материала, сформированный на токосъемнике;причем слой смолы токосъемника соединен со слоем активного материала.2. Электрод по п.1, при этом слой активного материала по меньшей мере частично составлен из активного материала и связующего полимера.3. Электрод по п.2, при этом слой смолы токосъемника соединен со слоем активного материала с помощью соединения термическим сплавлением.4. Электрод по п.2, при этом связующий полимер является термоотверждающимся полимером.5. Электрод по п.3, при этом слой смолы по меньшей мере частично составлен из полимерного материала, имеющего температуру размягчения более низкую, чем температура плавления связующего полимера.6. Электрод по любому из пп.1-4, при этом проводящий токосъемник включает в себя слоистый материал из по меньшей мере трех слоев смолы, включая два самых внешних слоя смолы и по меньшей мере один внутренний слой смолы, расположенный между двумя самыми ...

КАТОД ДЛЯ АККУМУЛЯТОРА ЛИТИЙ-ИОННОЙ БАТАРЕИ, СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ И СОДЕРЖАЩАЯ ЕГО БАТАРЕЯ

... 1. Катод, применимый в аккумуляторе литий-ионной батареи, содержащей электролит на основе соли лития и неводного растворителя электролита, причем катод выполнен на основе полимерной композиции, полученной обработкой расплава и без испарения растворителя, то есть представляет собой продукт реакции горячего компаундирования между активным материалом и добавками, включающими полимерное связующее и электропроводный наполнитель, отличающийся тем, что упомянутое связующее выполнено на основе по меньшей мере одного сшитого эластомера, и тем, что упомянутые добавки дополнительно включают по меньшей мере одно нелетучее органическое соединение, используемое в упомянутом растворителе электролита, причем композиция содержит упомянутый активный материал в массовой доле, большей или равной 90%.2. Катод по п. 1, отличающийся тем, что упомянутый активный материал содержит по меньшей мере одно литиированное полианионное соединение или комплексное соединение, имеющее рабочее напряжение ниже 4 В и предпочтительно ...

Способ изготовления окисно-ртутного электрода химического источника тока

BINDEMITTEL ZUR VERWENDUNG IM ELEKTROLYTEN VON LITHIUM-SEKUNDÄRZELLEN UND DESSEN VERWENDUNG

Kompositkathode und diese umfassende Lithiumionenbatterie sowie Verfahren zur Herstellung der Kompositkathode

Die Erfindung betrifft eine Kompositkathode umfassend Ableiter, aktives Kathodenmaterial, Bindemittel, fester anorganischer Lithium-Ionenleiter und Flüssigelektrolyt, wobei der anorganischen Festkörperelektrolyt in der Kompositkathode in einem höheren Volumen- und Gewichtsanteil als der Flüssigelektrolyt vorhanden ist. Zudem wird eine Lithiumionenbatterie umfassend die Kompositkathode und ein Verfahren zur Herstellung der Kompositkathode angegeben.

Kathode einer Festkörper- (all-solid-state) -Lithiumionenbatterie und Festkörper-Lithiumionenbatterie, die diese enthält

Eine Kathode einer Festkörper-Lithiumionenbatterie wird durch Aufbringen einer Aufschlämmung, in der ein Aktivmaterial, ein leitfähiges Material, ein Festkörperelektrolyt auf Sulfidbasis und ein Bindemittel gemischt sind, auf ein Substrat hergestellt. Das Bindemittel ist ein hydrierter Nitril-Butadien-Kautschuk (HNBR) mit verbleibenden Doppelbindungen in einer Menge von mehr als 0% und gleich oder weniger als 5,5%.

POLYESTERELEKTROLYTE AUF PHOSPHORBASIS FÜR HOCHSPANNUNGS-LITHIUM-IONEN-BATTERIEN

Es wurden neue Polyester auf Phosphorbasis synthetisiert. Wenn diese Polymere mit Elektrolytsalzen kombiniert werden, weisen derartige Polymerelektrolyte eine ausgezeichnete elektrochemische Oxidationsstabilität in Lithium-Batteriezellen auf. Ihre Stabilität zusammen mit ihren ausgezeichneten Ionentransporteigenschaften machen sie besonders geeignet als Elektrolyte in hochenergetischen Lithium-Batteriezellen.

Verfahren zur Herstellung einer Elektrodenplatte zur Verwendung in Lithium-Sekundärbatterien und Lithiumsekundärbatterie

Anode für eine Batteriezelle, Verfahren zur Herstellung einer Anode und Batteriezelle

Die Erfindung betrifft eine Anode (21) für eine Batteriezelle, umfassend ein Aktivmaterial (41), welches Silicium enthält, und einen Stromableiter (31), auf welchen das Aktivmaterial (41) aufgebracht ist, und eine Anodenbeschichtung (51), welche auf das Aktivmaterial (41) aufgebracht ist. Die Anodenbeschichtung (51) enthält Graphit und einen Binder. Die Erfindung betrifft auch ein Verfahren zur Herstellung einer erfindungsgemäßen Anode (21), sowie eine Batteriezelle, welche mindestens eine erfindungsgemäße Anode (21) umfasst.

Schwefel-Kathode für eine Lithium-Schwefel-Batterie

In einer Lithium-Schwefel-Batterie werden verschiedene Binder, die unterschiedliche Schwellverhältnisse in einem Elektrolyten zeigen, als Binder für eine Kathode verwendet und die Batterie besitzt daher ausgezeichnete Zykluseigenschaften und eine ausgezeichnete Kapazität. Ein erster Binder ist ein Binder mit einem großen Schwellverhältnis in einem Elektrolyten und ein zweiter Binder ist ein Binder mit einem kleinen Schwellverhältnis in dem Elektrolyten. Der erste Binder steht in direktem Kontakt mit dem aktiven Material. Der zweite Binder kann indirekt mit dem aktiven Material in Kontakt stehen, da er sich zwischen einer Vielzahl erster Binder befindet, die in direktem Kontakt mit dem aktiven Material stehen.

Verfahren zum Herstellen einer Batteriezelle

Verfahren zum Herstellen einer Batteriezelle (20, 30), das die Schritte umfasst, dass: Bauteile der Batteriezelle (20, 30) bereitgestellt werden, die eine Kathode (22), eine Anode (21), einen Separator (23), der zwischen der Anode (21) und der Kathode (22) angeordnet ist, ein Kathodengitter (24) und ein Anodengitter (25) umfassen, und isostatischer Druck auf die Bauteile der Batteriezelle (20, 30) aufgebracht wird, dadurch gekennzeichnet, dass die Bauteile der Batteriezelle (20, 30) in einen heißschweißbaren Film (26) eingewickelt werden, bevor der Druck aufgebracht wird, wobei der Druck in einer isostatischen Heißpresse (27) aufgebracht wird, und der Film (26) von der Zelle (20, 30) nach dem Schritt des Aufbringens des isostatischen Drucks wieder entfernt wird.

ELECTROCHEMICAL STORAGE CELLS

... 1425662 Electrodes comprising zinc particles and an acrylic gel COMPAGNIE INDUSTRIELLE DES PILES ELECTRIQUES 30 May 1973 [20 May 1972] 25790/73 Heading C3P [Also in Division H1] The negative electrode of an electrochemical storage cell comprises a zinc powder suspension in a three-dimensional gel constituted by a reticulated polymer of the acrylic type. The properties of such a gel are such that the zinc powder is held stable in three dimensions and is not subject to sedimentation. The electrode may also contain a gelled electrolyte constituted by potassium hydroxide solution saturated with zincate. The electrode is prepared by mixing acrylamide, acrylic acid and methylenebisacrylamide with an ammonium persulphate catalyst and # dimethylaminopropionitrile accelerator to obtain the gel by polymerization, the gel then being mixed with the zinc powder to which mercury dioxide may be added Electrolyte may also be incorporated in the oroginal gel mixture. As shown, the negative electrode 6 is ...

High voltage insertion compounds for lithium batteries

Surface modification

Predominantly amorphous silicon particles and use thereof as active anode material in secondary lithium ion batteries

A method for manufacturing predominantly amorphous silicon particles is disclosed which comprises forming a homogeneous gas mixture of a first precursor gas of a silicon-containing compound and at least one second precursor gas of a substitution element M containing compound, injecting the homogeneous gas mixture into a reactor, heating the precursor gases to a temperature in the range of from 700 to 900 °C so that the precursor gases react and form particles, and collecting and cooling the particles to a temperature in the range of from ambient temperature up to 350 °C, and wherein the relative amounts of the first and the second precursor gases are adapted such that the formed particles obtain an atomic ratio M : Si in the range of [0.005, 0.05]. The silicon particles formed comprise a chemical compound of formula Si(1-x)Mx, where 0.005 ≤ x < 0.05 and M is at least one element chosen from; Al, B, C, Ga, Ge, N, Sn, P, Pb, S, and wherein the particles exhibit one peak at 28° and one peak ...

Hybrid energy storage devices including support filaments

Composite electrode Material for a Rechargeable Battery

The present invention relates to a composite electrode material for a rechargeable battery; to a method of making a composite electrode material; to an electrode comprising the composite electrode material, especially an anode; to cells including electrodes or anodes including the composite electrode material; and to devices including said cells. In particular, there is provided a composite electrode material for a rechargeable battery cell comprising: a. an electroactive material; and b. a polymeric binder including pendant carboxyl groups characterised in that (i) the electroactive material comprises one or more components selected from the group comprising an electroactive metal, an electroactive semi-metal, an electroactive ceramic material, an electroactive metalloid, an electroactive semi-conductor, an electroactive alloy of a metal, an electroactive alloy of a semi metal and an electroactive compound of a metal or a semi-metal, (ii) the polymeric binder has a molecular weight in ...

A cathode composition

Device

Hybrid energy storage devices including support filaments

Electrochemical cells and methods of making and using thereof

Hybrid energy storage devices including support filaments

An electrode comprises a conductive substrate 105 and a material disposed on the substrate, the material comprising (i) carbon nanofibres 110; (ii) an intercalation material 1610 interspersed with the carbon nanofibres; (iii) a plurality of surface effect dominant sites provided by nanoparticles 1430, for catalysing intercalation of charge carriers into the intercalation material; and (iv) a binder 1140. The intercalation material may be coated on the carbon nanofibers (Figs 15, 18), and the nanoparticles may be concentrated on the surface of the intercalation material. The carbon nanofibres may be detached from the substrate and connected thereto via the binder (as shown), or may be directly connected to the substrate, preferably in an array of vertically aligned fibres (Fig 14). The intercalation material is preferably Si. The highly conductive and mechanically stable CNF core supporting a coaxially coated amorphous Si shell is claimed to have a higher theoretical specific capacity by ...

Electrode structure and method of making an electrode structure

A first electrode structure for use in a battery cell comprises a current collector layer 112, a polymer gel electrode layer 116 and an electrically conducting interlayer 114 arranged between the current collector layer 112 and the electrode layer 116. The interlayer 116 is a composite comprising metal or carbon (e.g. carbon nanotubes) and a binder formed of polyvinylidene fluoride or carboxymethyl cellulose and is used to adhere the electrode layer 116 to the current collector layer 112. The structure is formed by extruding or casting the interlayer 114 onto the current collector layer 112 and then pressing a self-supporting electrode layer 116 onto the interlayer 114, e.g. by calendaring. A second electrode structure comprises a current collector layer 12, a self-supporting electrode layer 16 (e.g. a sintered lithium rich metal oxide) and an electrically conducting interlayer 14 (e.g. deformable porous graphite or an adhesive) arranged between the current collector layer 12 and the electrode ...

Negative electrode for electrochemical generator.

PLATE MANUFACTURING PROCESS FOR LEAD ACID BATTERY

AQUEOUS DISPERSION ON BASIS OF STRENGTH AND MIXTURE LITHIUMUND TITANIUM OXIDE FOR AN ELECTRODE OF A LITHIUMAKKUS

BATTERY WITH HIGHLY COMPRESSED POSITIVE ELECTRODE

ELECTRODE MATERIALS FROM VANADIUM OXIDE AND METHOD TO YOUR PRODUCTION

Re+rechargeable mercury/mercury oxide electrode for galvanic elements

RE+RECHARGEABLE ZINC MANGANESE DIOXIDE CELLS

ACTIVATED CATHODES IN LITHIUM-POLYMER BATTERIES CONTAINING FE304 INSTEAD OF CONDUCTIVE CARBON BLACK

Vanadium oxide electrode materials and method for their production

Material for an electrochemical device

Process for forming a battery containing an iron electrode

Provided is a process for activating a battery comprising an iron electrode. The process comprises providing a battery comprising a cathode and an iron anode. The battery further comprises an electrolyte comprising NaOH, LiOH and a sulfide. The battery is then cycled to equalize the state-of-charge of the cathode and iron anode.

Iron electrode employing a polyvinyl alcohol binder

The present invention provides one with a novel continuous coated iron electrode employing a preferred binder comprised of polyvinyl alcohol (PVA) binder. Specifically, the invention comprises an iron based electrode comprising a single layer of a conductive substrate coated on at least one side with a coating comprising an iron active material and a binder, wherein the binder is PVA. This iron based electrode is useful in alkaline rechargeable batteries, particularly as a negative electrode in a Ni-Fe battery.

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.

A METHOD FOR MANUFACTURING A BIOCOMPATIBLE CATHODE SLURRY FOR USE IN BIOCOMPATIBLE BATTERIES FOR A CONTACT LENS

OF THE INVENTION Methods and apparatus to form biocompatible energization elements are described. In some examples, the methods and apparatus to form the biocompatible energization elements involve forming cavities comprising active cathode chemistry. The active elements of the cathode and anode are sealed with a biocompatible material. In some examples, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements. FG1l25 ...

Device and method for generating electrical energy

AQUEOUS SLURRY FOR BATTERY ELECTRODES

The present invention relates to a slurry or paste for the manufacture of electrodes for secondary batteries such as lithium ion containing electrochemical cells. The slurry comprises a water based binder with CMC, SBR and PVDF as binder materials.

PRINTED LITHIUM FOIL AND FILM

A substrate coated with a printable lithium composition is provided. The printable lithium composition includes lithium metal powder; a polymer binder, wherein the polymer binder is compatible with the lithium powder; and a rheology modifier compatible with the lithium powder and the polymer binder, wherein the rheology modifier is dispersible within the composition and provides a three-dimensional support structure for further improvement of the electrochemical performance of the electrode when coated with the composition. The substrate may be incorporated into a battery. In one embodiment, the battery comprises a cathode, an electrolyte and an anode, wherein the cathode, the electrolyte, the separator, the anode, or a combination thereof may each comprise a substrate coated with a printable lithium composition.

RECHARGEABLE BATTERY CELL

The invention relates to a rechargeable battery cell (2, 20, 40) which contains an active metal, at least one positive electrode (4, 23, 44) with a diverting element (26), at least one negative electrode (5, 22, 45) with a diverting element (27), a housing (1, 28), and an electrolyte, wherein the negative electrode contains lithium metal at least when the rechargeable battery cell is charged, and the electrolyte is based on SO2 and contains at least one first conductive salt with the formula (I), in which M is a metal selected from the group consisting of alkali metals, alkaline earth metals, metals of group 12 of the periodic table, and aluminum; x is a whole number from 1 to 3; the substituents R1, R2, R3, and R4 are selected independently of one another from the group consisting of C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkinyl, C3-C10 cycloalkyl, C6-C14 aryl, and C5-C14 heteroaryl; and Z is aluminum or boron.

ALKALINE-MNO.SUB.2 CELL HAVING A ZINC POWDER-GEL ANODE CONTAINING STARCH GRAFT COPOLYMER

... 12731 ALKALINE-MnO2 CELL HAVING A ZINC POWDER-GEL ANODE CONTAINING STARCH GRAFT COPOLYMER An alkaline-MnO2 cell employing a zinc powder-gel anode in which the gelling agent is starch graft copolymer with or without one or more other gelling agent such as sodium carboxymethyl cellulose. S P E C I F I C A T I O N 1.

BLOCK POLYMER, PROCESS FOR PRODUCING A POLYMER, AND POLYMER ELECTROLYTE FUEL CELL

A polymer electrolyte fuel cell comprising a membrane-form polymer electrolyte, a cathode disposed on one side of the polymer electrolyte, and an anode disposed on the other side of the polymer electrolyte, wherein the cathode comprises a catalyst and an ion exchange resin, and the ion exchange resin is made of a polymer comprising the following segments A and segments B: Segments A: segments made of a polymer having sulfonic acid groups; and Segments B: segments made of a fluoropolymer having substantially no ion exchange groups.

POLYMER ELECTROLYTE COMPLEX

A polymer based electrolyte complex being configured to provide ion transport, said complex comprising: a plurality of ion conducting polymers, each polymer of said plurality of polymers comprising an amphiphilic repeating unit, said polymers being arranged as a lattice of ionophobic repeating unit regions and ionophilic repeating unit channels, said channels being configured to provide ion transport; a first ionic bridge polymer positioned substantially between said lattice, said ionic bridge polymer being configured to allow ion transport between said ionophilic repeating unit channels of said lattice; said complex further comprising and being characterised by: a second ionic bridge polymer positioned substantially between said lattice, said second ionic bridge polymer being configured to allow ion transport between said ionophilic repeating unit channels of said lattice.

IMPROVED SENSOR SUB CONFIGURATION

A sensor sub is provided for use in a tubular handling system, the sensor sub being located adjacent to and removably connected to a saver sub pin connection. The sensor sub collects raw data relating to operation of the tubular handling system, digitizes the raw data and transmits the raw data to a remote receiver. The sensor sub is powerable by one or more commercially available lithium batteries. A battery holder is also provided having a housing for housing batteries in a hazardous environment, wherein the batteries are replaceable within the battery holder while the battery holder remains in the hazardous environment. Finally, a method of replacing a battery in a hazardous environment is also provided.

ADDITIVES FOR ELECTROLYTE AND CATHODE MATERIAL IN LI-ION BATTERIES COMPRISING METAL-BASED CATHODE MATERIAL WHICH PRODUCES M2+ METAL IONS

Method of improving the performance of a Li-ion battery comprising metal-based cathode material which produces M2+ metal ions. The method comprises using a small organic compound in association with the electrolyte of the battery or using a polymer compound in association with the cathode active material of the battery. The small organic compound and the polymer compound comprise at least one chemical group suitable for forming complexes with the M2+ metal ions thereby preventing dissolution thereof.

SOLID ELECTROLYTE FOR ORGANIC BATTERIES

The present invention relates to a process for producing a charge storage unit, especially a secondary battery, the electrodes of which comprise an organic redox-active polymer, and which includes a polymeric solid electrolyte. The solid electrolyte is obtained by polymerizing from mixtures of acrylates with methacrylates in the presence of at least one ionic liquid, which imparts advantageous properties to the charge storage unit. The present invention additionally also relates to the charge storage unit itself.

ELASTIC AND STRETCHABLE GEL POLYMER ELECTROLYTE

The present disclosure relates generally to a coated electrode for use in preparation of lithium ion batteries and methods of preparing such. More particularly, the present disclosure relates to a polymer coating composition for coating electrodes of the lithium ion batteries (LIBs). The polymer coating composition comprises a polyurethane gel polymer electrolyte (GPE) formed by a reaction of an isocyanate and a polyol.

ELECTRODE MATERIALS AND PROCESSES FOR THEIR PREPARATION

This application describes an electrode material comprising an indigoid compound, i.e. indigo blue or a derivative thereof, for instance, together with particles of an electrochemically active material dispersed in a binder. Processes for the preparation of the electrode material and electrodes containing the material, as well as to the electrochemical cells and their use are also contemplated.

METHODS OF COATING AN ELECTRICALLY CONDUCTIVE SUBSTRATE AND RELATED ELECTRODEPOSITABLE COMPOSITIONS

A method of producing an electrode for a lithium ion battery is disclosed in which an electrically conductive substrate is immersed into an electrodepositable composition, the substrate serving as the electrode in an electrical circuit comprising the electrode and a counter-electrode immersed in the composition, a coating being applied onto or over at least a portion of the substrate as electric current is passed between the electrodes. The electrodepositable composition comprises: (a) an aqueous medium; (b) an ionic (meth)acrylic polymer; and (c) solid particles comprising: (i) lithium-containing particles, and (ii) electrically conductive particles, wherein the composition has a weight ratio of solid particles to ionic (meth)acrylic polymer of at least 4:1.

CATHODE SLURRY FOR LITHIUM ION BATTERY

Provided herein is a lithium-ion battery cathode slurry, comprising: a cathode active material, a conductive agent, a binder material, and a solvent, wherein the cathode active material has a particle size D50 in the range from about 10 µm to about 50 µm, and wherein the slurry coated onto a current collector having a wet film thickness of about 100 µm has a drying time of about 5 minutes or less under an environment having a temperature of about 60 ? to about 90 ? and a relative humidity of about 25% to about 40%. The cathode slurry disclosed herein has homogeneous ingredient dispersion and quick drying capability for making a lithium-ion battery with high quality and consistent performance. In addition, these properties of the cathode slurry increase productivity and reduce the cost of manufacturing lithium-ion batteries.

ELECTRODE ASSEMBLIES

Provided herein is electrode assembly for a nonaqueous electrolyte secondary battery, comprising at least one anode, at least one cathode and at least one separator interposed between the at least one anode and at least one cathode, wherein the at least one anode comprises an anode current collector and an anode electrode layer, and the at least one cathode comprises a cathode current collector and a cathode electrode layer, wherein each of the cathode and anode electrode layers independently has a void volume of less than 35%, and wherein each of the at least one cathode and anode independently has a peeling strength of 0.15 N/cm or more.

GLYCIDYL-CONTAINING POLYMERS, POLYMER COMPOSITIONS COMPRISING THEM AND THEIR USE IN ELECTROCHEMICAL CELLS

Glycidyl-containing polymers and polymer compositions comprising them are described, as well as their use in electrode materials and/or as coatings for battery components. Also described are electrode materials, electrodes, electrochemical cells and batteries comprising the polymers and their uses.

NANOSTRUCTURE MATERIAL, METHOD FOR THE PREPARATION THEREOF

COATING LIQUID FOR MANUFACTURING ELECTRODE PLATE, UNDERCOATING AGENT, AND USE THEREOF

This invention provides a coating liquid for manufacturing an electrode p late, characterized by adding an active material to a solution containing a hydroxyalkylchitosan and an organic acid and/or its derivative in a nonproto nic polar solvent and kneading the mixture, and an electrode plate, a method for manufacturing the same, a battery, a capacitor, and an undercoating age nt. The above constitution can provide a coating liquid for manufacturing an electrode plate for a nonaqueous electrolysis solution for a rechargeable b attery and an electrode plate for an electric double layer capacitor, which is excellent in adhesion of an active material layer to a current collector, and has an improved resistance of contact with a current collector, and an electrode plate, a method for manufacturing the same and a battery or a capa citor.

BINDER COMPOSITION FOR AN ELECTRODE AND METHODS FOR PRODUCING THE SAME

The presently disclosed and/or claimed inventive process(es), procedure(s), method{s), product(s), result(s), and/or concept(s) (collectively hereinafter referred to as the "presently disclosed and/or claimed inventive concept(s)") relates generally to the composition of a binder for use in battery electrodes and methods of preparing such. More particularly, but not by way of iimitation, the presently disclosed and/or claimed inventive concept(s) relates to a binder composition containing an ionizable water soluble polymer and a redispersible powder containing a latex, a protective colloid, and an anticaking agent for use in the production and manufacture of electrodes of a lithium ion battery. Additionally, the presently disclosed and/or claimed inventive concept(s) relates generally to the compositions and methods of making electrodes, both anodes and cathodes, with a binder composition containing an ionizable water soluble polymer and a redispersible powder.

IRON ELECTRODE EMPLOYING A POLYVINYL ALCOHOL BINDER

The present invention provides one with a novel continuous coated iron electrode employing a preferred binder comprised of polyvinyl alcohol (PVA) binder. Specifically, the invention comprises an iron based electrode comprising a single layer of a conductive substrate coated on at least one side with a coating comprising an iron active material and a binder, wherein the binder is PVA. This iron based electrode is useful in alkaline rechargeable batteries, particularly as a negative electrode in a Ni-Fe battery.

METHODS AND APPARATUS TO FORM BIOCOMPATIBLE ENERGIZATION PRIMARY ELEMENTS FOR BIOMEDICAL DEVICES

Methods and apparatus to form biocompatible energization elements are described. In some embodiments, the methods and apparatus to form the biocompatible energization elements involve forming cavities comprising active cathode chemistry. The active elements of the cathode and anode are sealed with a laminate stack of biocompatible material. In some embodiments, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements.

CELLULOSE BASED FUNCTIONAL COMPOSITES, ENERGY STORAGE DEVICES AND MANUFACTURING METHODS THEREOF

Document discloses new technologies for utilizing cellulose based materials in composites and electrically functionalised structures,such as energy storage devices. The object of the invention is achieved by means of high consistency fibrillated cellulose with at least one functional additive. This high consistency mixture is processed to form the composite structure having a shape and then dried or let to dry.

ANODE INCLUDING A LITHIUM ALLOY FOR HIGH ENERGY BATTERIES

Anode comprenant un matériau d'anode, un matériau protecteur et un collecteur de courant. Le matériau d'anode est un mélange comprenant une matière active, un agent de conduction électronique et un liant. La matière active peut être un alliage de silicium et de lithium ou un alliage d'oxyde de silicium et de lithium. Il est décrit le procédé d'élaboration de l'anode.

BINDERS, ELECTROLYTES AND SEPARATOR FILMS FOR ENERGY STORAGE AND COLLECTION DEVICES USING DISCRETE CARBON NANOTUBES

In various embodiments an improved binder composition, electrolyte composition and a separator film composition using discrete carbon nanotubes. Their methods of production and utility for energy storage and collection devices, like batteries, capacitors and photovoltaics, is described. The binder, electrolyte, or separator composition can further comprise polymers. The discrete carbon nanotubes further comprise at least a portion of the tubes being open ended and/or functionalized. The utility of the binder, electrolyte or separator film composition includes improved capacity, power or durability in energy storage and collection devices. The utility of the electrolyte and or separator film compositions includes improved ion transport in energy storage and collection devices.

ELECTRODE MATERIAL FOR LITHIUM ELECTROCHEMICAL CELLS

An electrochemically active material is disclosed in which the particles of electrochemically active material have a zeta potential of less than 25 mV in absolute value (-25 m V to 0 mV; 0 mV to 25 mV) as measured in the medium (water and/or organic solvent) in which the particles are dispersed.

NON-AQUEOUS ELECTROLYTE SECONDARY CELL, NEGATIVE ELECTRODE THEREFOR, AND METHOD OF PRODUCING NEGATIVE ELECTRODE

A graphite material capable of occluding and releasing lithium is used as a material of the negative electrode of a non-aqueous electrolyte secondary cell, and the negative electrode material is bound by at least one selected from polyethylene, ethylene-vinyl acetate copolymer, ethylene-propylene copolymer, ethylene-propylene-vinyl acetate copolymer, and polypropylene. The cell is provided with this negative electrode, a rechargeable positive electrode, and a non-aqueous electrolyte; therefore, the resistance of the mix of the negative electrode against separation is strong, the cell is easily handled, the reliability in the mass-production process is high, and the lowtemperature discharge characteristics and cycle characteristics are excellent.

POLYIMIDE BATTERY

A battery having at least one anode (14), at least one cathode (15), and at least one electrolyte (16) disposed between the anode and the cathode is presented. Each anode (14) comprises an anode current collector (11) and an anode composite material (21) which includes a first, soluble, amorphous thermoplastic polyimide, an electronic conductive filler, and an intercalation material. Each cathode (15) comprises a cathode current collector (12) and a cathode composite material (22) which includes a second soluble, amorphous, thermoplastic polyimide, an electronic conductive filler, and a metal oxide. Lastly, each electrolyte (16) comprises a third soluble amorphous, thermoplastic polyimide and a lithium salt. The process for preparing the battery comprises the steps of preparing an anode slurry, a cathode slurry, and an electrolyte solution; casting a film of the electrolyte solution to form an electrolyte layer; coating each of the anode slurry and the cathode slurry on respective current ...

Method and apparatus for continuously applying magnetic fields on an object.

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur kontinuierlichen Applizierung magnetischer Felder auf einen Gegenstand (20), resp. quasikontinuierliche Applizierung, insbesondere während eines Herstellungs- und/oder Bearbeitungsverfahrens zum Beispiel von Folien, Filmen, Planen, Elektroden oder anderen Gegenständen. Während eines Herstellungs- und/oder Bearbeitungsverfahrens zum Beispiel von Folien, Filmen, Planen, Elektroden oder anderen Gegenständen soll die Applizierung ohne zusätzliche Arbeitsschritte ermöglicht werden. Dies wird unter Verwendung eines Hallbach-Arrays mit Permanentmagneten erreicht, wobei ein magnetisierbarer Gegenstand (20) relativ zu dem Hallbach-Array bewegt wird.

Method and apparatus for applying magnetic fields on an object.

Die Erfindung betrifft ein Verfahren und eine Einrichtung zur Applizierung magnetischer Felder auf einen Gegenstand, der insbesondere eine Schicht oder ein mit einer Schicht beschichteter Gegenstand ist, und weiter insbesondere auf eine Beschichtung, die Graphitpartikel aufweist, bevorzugt zur Herstellung einer negativen Elektrode mit ausgerichteten Graphitpartikeln, zum Beispiel für schnell ladende Lithium-Ionen-Batterien. Die Applizierung der magnetischen Felder soll insbesondere kontinuierlich erfolgen. Hierzu wird ein Halbach-Arrays mit Permanentmagneten (011) zur Applizierung magnetischer Felder verwendet, wobei der Gegenstand relativ zu dem Halbach-Array bewegt wird. Die Applizierung des Magnetfeldes erfolgt insbesondere vor der Einleitung einer Trocknungsphase und/oder während der Trocknungsphase.

SECONDARY ZINC - DIOXIDE - MANGANESE BATTERY FOR USE IN HIGH POWER

SECONDARY ZINC - DIOXIDE - MANGANIC BATTERY FOR USE AT HIGH POWER

МАТЕРИАЛ ДЛЯ ЭЛЕКТРОХИМИЧЕСКОГО УСТРОЙСТВА

Настоящее изобретение относится к материалу для электрохимического устройства, в частности, для топливного элемента, электролизера или аккумуляторной батареи, содержащей матрицу и активированный нитрид бора, содержащийся в матрице.

ВОДНАЯ СУСПЕНЗИЯ ДЛЯ ЭЛЕКТРОДОВ БАТАРЕЙ

Изобретение относится к суспензии или пасте для изготовления электродов аккумуляторных батарей, таких как гальванические элементы, содержащие ионы лития. Суспензия содержит связующее на водной основе, содержащее CMC, SBR и PVDF в качестве связующих материалов.

Organic negative electrode and battery having the organic negative electrode

The embodiment of the invention provides an organic negative electrode. The organic negative electrode comprises a first material layer containing a conductive material; a second material layer arranged on the first material layer and formed of a high polymer solution; and a third material layer formed on the second material layer and containing chlorophyll. Same the third material may be a part of the second material to achieve the same effect. The embodiment of the invention also provides a battery having the organic negative electrode. According to the embodiment, the organic negative electrode and the battery having the organic negative electrode can store hydrogen by use of chlorophyll, and have the excellent properties of low electrode resistance and high capacitance. The organic negative electrode has simple manufacture process and low cost. The battery having the organic negative electrode can not pollute the environment even if discarded after use by adopting the natural environmental-protection ...

Lithium ion battery electrodes including graphenic carbon particles

METHOD OF PREPARING CATHODE FOR SECONDARY BATTERY

Polyimide battery

METHOD OF PREPARING CATHODE MATERIAL FOR BATTERY

Surface treated silicon containing active materials for electrochemical cells

Method for preparing electrode composition or composition having magnetic properties, mixture and composition obtained by said method, and said electrode

Modified guaran binder for lithium ion batteries

Tetrafluoro-borate ion crosslinking hydroxyl polymer binding agent, preparation method thereof, secondary battery and negative electrode and negative paste of secondary battery

Lithium-sulfur battery positive electrode material and cationic lithium-sulfur battery binding agent

Polyimide precursor solution composition

Disclosed is a first polyimide precursor solution composition comprising (A) a polyamic acid, (B) a carboxylic acid compound having three or more pairs of carboxyl groups in the molecule or an esterified product thereof, and (D) a solvent. Also disclosed is a second polyimide precursor solution composition comprising the components (A), (B) and (D) contained in the first polyimide precursor solution composition and additionally comprising (C) a carboxylic acid compound having two pairs of carboxyl groups in the molecule or an esterified product thereof. Further disclosed is a third polyimide precursor solution composition comprising the components contained in the second polyimide precursor solution composition, wherein the polyamic acid (A) is a polyamic acid having a specific structure.

NONAQUEOUS SECONDARY BATTERY

Synthesis of cathode active materials

The present invention relates to a method for preparing an electroactive metal polyanion or a mixed metal polyanion comprising forming a slurry comprising a polymeric material, a solvent, a polyanion source or alkali metal polyanion source and at least one metal ion source; heating said slurry at a temperature and for a time sufficient to remove the solvent and form an essentially dried mixture; and heating said mixture at a temperature and for a time sufficient to produce an electroactive metal polyanion or electroactive mixed metal polyanion. In an alternative embodiment the present invention relates to a method for preparing a metal polyanion or a mixed metal polyanion which comprises mixing a polymeric material with a polyanion source or alternatively an alkali metal polyanion source and a source of at least one metal ion to produce a fine mixture and heating the mixture to a temperature higher than the melting point of the polymeric material, milling the resulting material and then ...

For lithium ion secondary battery negative electrode material and its manufacturing method, the lithium ion secondary battery negative electrode, and the lithium ion secondary battery

The non-aqueous electrolyte secondary battery

For the production of storage material apparatus and method

Conductive carbon material dispersant and conductive carbon material dispersion

Total solid rechargeable battery

This invention provides a total solid rechargeable battery that can be manufactured by a method, which can realize mass production on a commercial scale, and can realize excellent rechargeable battery performance. The rechargeable battery is a total solid rechargeable battery comprising a laminate. The laminate comprises positive electrode units and negative electrode units provided alternately through an ion conductive inorganic material layer. The total solid rechargeable battery is characterized in that the positive electrode unit comprises a positive electrode active material layer provided on both sides of a positive electrode current collector layer, the negative electrode unit comprises a negative electrode active material layer provided on both sides of a negative electrode current collector layer, and (a) at least one of the positive electrode current collector layer and the negative electrode current collector layer is formed of any of Ag, Pd, Au and Pt metals, or an alloy containing ...

Composite electrode and electronic device including the same

A composite electrode includes a plate-shaped conductor; a plurality of auxiliary electrodes disposed such that ends of the plurality of auxiliary electrodes are connected to a surface of the plate-shaped conductor and the plurality of auxiliary electrodes extend from the surface of the plate-shaped conductor; and an active material layer formed between the plurality of auxiliary electrodes so as to be in contact with the plate-shaped conductor. When the height of the plurality of auxiliary electrodes is defined as h, the center-to-center spacing of auxiliary electrodes facing each other in the plurality of auxiliary electrodes or the spacing of auxiliary electrodes facing each other in the plurality of auxiliary electrodes is h or more and 2h or less.

Negative electrode for lithium ion secondary battery and battery using same

There is provided a negative electrode for a lithium-ion secondary battery, including a conductive substrate, a negative electrode active material layer containing a negative electrode active material capable of absorbing and desorbing lithium ions and a conductive member having a lower elastic modulus than that of the conductive substrate, wherein at least part of the negative electrode active material is connected to the conductive substrate via the conductive member. There is also provided a lithium-ion secondary battery with such a negative electrode.

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

An electrode for a lithium secondary battery and a lithium secondary battery including the same, the electrode including a polyamide imide (PAI)-based binder, wherein a 1,3-benzenediamine peak is not observed when a composition including components extracted from the electrode by a solvent capable of dissolving the polyamideimide (PAI)-based binder is analyzed with pyrolysis-gas chromatography (Py-GC) under conditions of a pyrolysis temperature of about 750 to about 780° C., a pyrolysis time of about 5 seconds to about 15 seconds, and increasing a gas chromatography oven temperature from about 40° C. to about 300° C. at a rate of about 10° C./min.

Electrode for secondary battery, slurry for secondary battery electrode, and secondary battery

A secondary battery electrode which suppresses decrease in capacity and lithium deposition at low temperatures is provided. An electrode for a secondary battery includes an electrode active material layer containing a polymer having a cationic group, an anion corresponding to the cationic group, and an electrode active material, and the cation density in the polymer is 0.1 to 15 meq/g.

Electronically conductive polymer binder for lithium-ion battery electrode

A family of carboxylic acid group containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.

Binder for lithium secondary battery, negative electrode for lithium secondary battery, lithium secondary battery, binder precursor solution for lithium secondary battery, and method for manufacturing negative electrode for lithium secondary battery

Provided is a binder capable of realizing a lithium secondary battery that includes a negative electrode including a negative-electrode active material layer containing at least one of silicon and a silicon alloy as a negative-electrode active material and also containing a binder and has an excellent charge-discharge cycle characteristic. The binder for the lithium secondary battery contains a polyimide resin that is formed by imidizing either a tetracarboxylic acid or a tetracarboxylic anhydride and a diamine, the polyimide resin having a hydrolyzable silyl group.

Battery

An exemplary battery is provided in the present invention. The battery includes a current collector, a positive-electrode structure, a separation structure, a negative-electrode structure and a housing. The positive-electrode structure, the separation structure, the negative-electrode structure are encircled in sequence inside of the housing. At least one of the negative-electrode structure and the positive-electrode structure comprises chlorophyll. The battery of the present invention could store hydrogen by the chlorophyll of the positive-electrode structure and/or the negative-electrode structure to generate electricity.

Water-based slurry composition, electrode plate for electricity storage device, and electricity storage device

A water-based slurry composition contains (1) a water-based medium containing at least water as a polar solvent, (2) at least one polymer selected from cellulose derivatives, alginic acid derivatives, starch derivatives, chitin derivatives, chitosan derivatives, polyallylamine and polyvinylamine, (3) a hydrophobic filler, and (4) a polybasic acid or a derivative thereof. The composition has a water content of 30 mass % or higher. An electrode plate for an electricity storage device, and the electricity storage device are also disclosed.

Method for the production of stretchable electrodes

The invention relates to a method for producing stretchable electrodes, where electrically conductive carbon particles, especially carbon nanotubes, are introduced into a coating comprising an elastomer. In said method, a preparation of non-aggregated carbon particles having an average particle diameter ranging from=0.3 nm to=3000 nm in a solvent acts upon a coating comprising an elastomer. The solvent can cause a coating comprising an elastomer to swell. The duration of the action is calculated so as to be insufficient to dissolve the elastomer. Optionally, another electrically conductive layer is applied. The invention also relates to a stretchable electrode obtained in said manner and to the use thereof.

Aqueous paste for electrochemical cell, electrode plate for electrochemical cell obtained by applying the aqueous paste, and battery comprising the electrode plate

The aqueous paste for an electrochemical cell of the present invention comprises an aqueous dispersion for an electrochemical cell that comprises an olefin copolymer (a); an active material; and a conductive assistant, wherein the olefin copolymer (a) has a weight average molecular weight of not less than 50,000 and is at least one kind selected from a random propylene copolymer (a-1) containing 50% by weight to less than 85% by weight of a structural unit derived from propylene; an acid-modified random propylene copolymer (a-2) obtained by modifying the copolymer (a-1) with an acid; and an ethylene-(meth) acrylic acid copolymer (a-3) containing 5% by weight to less than 25% by weight of a structural unit derived from (meth) acrylic acid.

Polymer secondary battery and method for manufacturing the same

There is provided a polymer secondary battery using silicon and silicon oxide as a negative electrode active material that shows a high capacity retention rate also when a charge and discharge cycle is repeated. A polymer secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a polymer-containing gel electrolyte, wherein the negative electrode includes silicon and silicon oxide as a negative electrode active material, and the polymer-containing gel electrolyte is present in voids formed by fine division of particles of the negative electrode active material.

Cathode active material composition, cathode prepared by using the same, and lithium battery including the cathode

A cathode active material composition includes a cathode active material, a water-based binder, and a transition metal oxide. A cathode is prepared using the cathode active material composition. A lithium battery includes the cathode. The lithium battery has improved high-rate characteristics and lifespan characteristics by preventing an increase in internal resistance due to the corrosion of an electrode base material.

Method of manufacturing positive electrode active material for lithium ion battery

At least one of an aqueous solution A containing lithium, an aqueous solution B containing iron, manganese, cobalt, or nickel, and an aqueous solution C containing a phosphoric acid includes graphene oxide. The aqueous solution A is dripped into the aqueous solution C, so that a mixed solution E including a precipitate D is prepared. The mixed solution E is dripped into the aqueous solution B, so that a mixed solution G including a precipitate F is prepared. The mixed solution G is subjected to heat treatment in a pressurized atmosphere, so that a mixed solution H is prepared, and the mixed solution H is then filtered. Thus, particles of a compound containing lithium and oxygen which have a small size are obtained.

Electrode for lithium ion secondary battery, method for producing the same, and lithium ion secondary battery

The electrode for a lithium ion secondary battery of the present invention has an electrode mixture layer containing carbon nanotubes as a conductive auxiliary agent and deoxyribonucleic acid as a dispersant for the carbon nanotubes, and the content of the carbon nanotubes in the electrode mixture layer is 0.001 to 5 parts by mass with respect to 100 parts by mass of active material particles. The lithium ion secondary battery of the present invention has the electrode of the invention as its positive electrode and/or negative electrode. The electrode of the invention can be produced by a producing method of the invention of forming the electrode mixture layer from an electrode mixture-containing composition prepared using a dispersion including carbon nanotubes and deoxyribonucleic acid.

LITHIUM ION BATTERIES

A lithium ion battery includes a positive electrode, a negative electrode, and a microporous polymer separator soaked in an electrolyte solution. The microporous polymer separator is disposed between the positive electrode and the negative electrode. An ion exchange polymer material is any of i) incorporated as a binder in any of the positive electrode or the negative electrode, ii) deposited onto a surface of any of the positive electrode or the negative electrode, iii) incorporated into the microporous polymer separator, or iv) deposited onto a surface of the microporous polymer separator. Examples of methods for making the ion exchange polymer material for use in the lithium ion batteries are also disclosed herein. 1. A lithium ion battery , comprising:a positive electrode;a negative electrode;a microporous polymer separator soaked in an electrolyte solution, the microporous polymer separator disposed between the positive electrode and the negative electrode; andan ion exchange polymer material any of i) incorporated as a binder in any of the positive electrode or the negative electrode, ii) deposited onto a surface of any of the positive electrode or the negative electrode, iii) incorporated into the microporous polymer separator, or iv) deposited onto a surface of the microporous polymer separator.4. The lithium ion battery as defined in wherein the is selected from the group consisting of polyolefins claim 3 , polyethylene terephthalate claim 3 , polyvinylidene fluoride claim 3 , polyamides claim 3 , polyurethanes claim 3 , polycarbonates claim 3 , polyesters claim 3 , polyetheretherketones claim 3 , polyethersulfones claim 3 , polyimides claim 3 , polyamide-imides claim 3 , polyethers claim 3 , polyoxymethylene claim 3 , polybutylene terephthalate claim 3 , polyethylenenaphthenate claim 3 , polybutene claim 3 , polyolefin copolymers claim 3 , acrylonitrile-butadiene styrene copolymers claim 3 , polystyrene copolymers claim 3 , polymethylmethacrylate claim 3 , ...

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, AND NEGATIVE ELECTRODE FOR LITHIUM ION BATTERY USING THE SAME

The present invention relates to a negative electrode active material including an Si—Sn—Fe—Cu based alloy, in which an Si phase has an area ratio in a range of from 35 to 80% in the entire negative electrode active material, the Si phase is dispersed in a matrix phase, the matrix phase contains an Si—Fe compound phase crystallized around the Si phase and further contains an Sn—Cu compound phase crystallized to surround the Si phase and the Si—Fe compound phase, the Si—Fe compound phase is crystallized in a ratio of from 35 to 90% in terms of an area ratio in the entire matrix phase, and the matrix phase further contains an Sn phase unavoidably crystallized in the matrix phase in a ratio of 15% or less in terms of an area ratio in the entire matrix phase, 1. A negative electrode active material comprising an Si—Sn—Fe—Cu based alloy ,wherein an Si phase has an area ratio in a range of from 35 to 80% in the entire negative electrode active material,wherein the Si phase is dispersed in a matrix phase,wherein the matrix phase contains an Si—Fe compound phase crystallized around the Si phase and further contains an Sn—Cu compound phase crystallized to surround the Si phase and the Si—Fe compound phase,wherein the Si—Fe compound phase is crystallized in a ratio of from 35 to 90% in terms of an area ratio in the entire matrix phase, andwherein the matrix phase further contains an Sn phase unavoidably crystallized in the matrix phase in a ratio of 15% or less in terms of an area ratio in the entire matrix phase.2. The negative electrode active material according to claim 1 , wherein the area ratio of the Si—Fe compound phase in the entire matrix phase is in a range of from 60 to 85%.3. The negative electrode active material according to claim 1 , wherein the area ratio of the Si phase in the entire negative electrode active material is in a range of from 50 to 80% claim 1 ,4. The negative electrode active material according to claim 2 , wherein the area ratio of the Si ...

ELECTRODE ASSEMBLY FOR ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE DEVICE

An object is to provide an electrode assembly for an electric storage device, such as a nonaqueous electrolyte cell, and an electric storage device that are capable of preventing increase of a short-circuit current at the time of occurrence of a short-circuit within a cell and have high safety. In order to achieve the object, provided is an electrode assembly for an electric storage device including a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode, in which at least one of the positive electrode and the negative electrode includes a current collector, an active material layer formed on at least one face of the current collector, and an undercoat layer formed between the current collector and the active material layer and including an organic binder that evaporates and decomposes when heated to a predetermined temperature or more. 1. An electrode assembly for an electric storage device comprising a positive electrode , a negative electrode and a separator disposed between the positive electrode and the negative electrode ,wherein at least one of the positive electrode and the negative electrode includes:a current collector;an active material layer formed on at least one face of the current collector; andan undercoat layer formed between the current collector and the active material layer and including a conductive additive and an organic binder that evaporates or decomposes when heated to a predetermined temperature or more.2. The electrode assembly for an electric storage device according to claim 1 ,wherein the predetermined temperature is 160° C. to 500° C.3. The electrode assembly for an electric storage device according to claim 1 ,wherein the organic binder is at least one selected from the group consisting of chitin-chitosan derivative, fluoride resin, synthetic rubber, polyamide, polyimide, polyolefin and polyacrylic.4. The electrode assembly for an electric storage device according ...

LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

Provided is a lithium secondary battery in which negative-electrode active material particles containing silicon and/or a silicon alloy are used and which prevents the occurrence of breakage of a binder itself and peel-off of the binder at the interfaces with the negative-electrode active material and the negative-electrode current collector and has a high energy density and an excellent cycle characteristic. The lithium secondary battery includes: a negative electrode in which a negative-electrode active material layer including negative-electrode active material particles containing silicon and/or a silicon alloy and a binder is formed on a surface of electrically conductive metal foil serving as a negative-electrode current collector; a positive electrode; and a nonaqueous electrolyte, wherein the binder contains a polyimide resin including a crosslinked structure formed by imidization of a hexavalent or higher-valent carboxylic acid or an anhydride thereof with a diamine. 1. A lithium secondary battery including: a negative electrode in which a negative-electrode active material layer including negative-electrode active material particles containing silicon and/or a silicon alloy and a binder is formed on a surface of electrically conductive metal foil serving as a negative-electrode current collector; a positive electrode; and a nonaqueous electrolyte , whereinthe binder contains a polyimide resin including a crosslinked structure formed by imidization of a hexavalent or higher-valent carboxylic acid or an anhydride thereof with a diamine.3. The lithium secondary battery according to claim 1 , wherein the polyimide resin including the crosslinked structure includes a linear chain structure formed by imidization of a tetracarboxylic acid or a dianhydride thereof with a diamine.5. The lithium secondary battery according to claim 4 , wherein in the polyimide resin claim 4 , the ratio between the total amount of substance of the crosslinked structure represented by ...

Lead manganese-based cathode material for lithium electrochemical systems

A lead manganese-based cathode material is provided. Furthermore, a lithium or lithium ion rechargeable electrochemical cell is provided incorporating lead manganese-based cathode material in a positive electrode. In addition, a process for preparing a stable lead manganese-based cathode material is provided.

Aqueous electrode binder for secondary battery

The present invention provides an aqueous electrode binder for a secondary battery suitable as a water-soluble binder that is included in a composition forming an electrode for secondary battery, and does not reduce adhesion and flexibility of an emulsion because a water-soluble polymer is included that has dispersibility and a viscosity control function, and that supplementary works when an electrode is formed. An aqueous electrode binder for a secondary battery includes a water-soluble polymer, wherein the water-soluble polymer includes a structural unit (a) derived from an ethylenically unsaturated carboxylic acid ester monomer in an amount of 50 to 95% by mass and a structural unit (b) derived from an ethylenically unsaturated carboxylic salt monomer in an amount of 5 to 50% by mass, based on 100% by mass of the total amount of the structural units included in the water-soluble polymer, and wherein the water-soluble polymer has a weight-average molecular weight of 500,000 or more.

Nonaqueous electrolyte battery, electrode for the same, and battery pack

According to one embodiment, there is provided an electrode for a nonaqueous electrolyte battery. The electrode includes an active material layer. The active material layer includes a monoclinic β-type titanium composite oxide. When the electrode is subjected to an X-ray diffraction measurement using a Cu-Kα ray source, a ratio of a reflection intensity I(020) of a peak derived from a plane (020) of a crystal of the monoclinic β-type titanium composite oxide to a reflection intensity I(001) of a peak derived from a plane (001) of the crystal of the monoclinic β-type titanium composite oxide being in the range from 0.6 to 1.2.

Binder for lithium ion secondary battery electrode, slurry obtained using the binder for electrode, electrode obtained using the slurry, and lithium ion secondary battery using the electrode

An object of the present invention is to provide: a binder for a lithium ion secondary battery electrode, which is water-dispersible type and has favorable adhesion between active materials and between the active material and current collectors, along with charge-discharge high-temperature cycle characteristics; a slurry using the binder; an electrode using the slurry; and a lithium ion secondary battery using the electrode. The present invention relates to a binder composition for a lithium ion secondary battery electrode, which is obtained by emulsion polymerization of an ethylenically unsaturated monomer in the presence of a surfactant, the ethylenically unsaturated monomer containing, as essential constituents, 15 to 70 mass % of styrene with respect to the total mass of ethylenically unsaturated monomers, an ethylenically unsaturated carboxylic acid ester, an ethylenically unsaturated carboxylic acid and an internal cross-linking agent.

BINDER FOR SECONDARY BATTERY PROVIDING EXCELLENT ADHESION STRENGTH AND CYCLE PROPERTY

Provided is a binder for secondary battery electrodes comprising a copolymer consisting of 79 to 98% by weight of at least one selected from the group consisting of (a) an ethylenically unsaturated carbonic acid ester monomer and (b) a vinyl monomer and a nitrile monomer, (c) 1 to 20% by weight of an ethylenically unsaturated carbonic acid monomer, and (d) 1 to 20% by weight of a phosphorus (P)-containing monomer including a P═O bond and one or more reactive double bonds in a molecular structure thereof, based on the total weight of the binder. The binder fundamentally improves stability of an electrode in the process of fabricating the electrode, thus providing secondary batteries with superior cycle properties. 1. A binder for secondary battery electrodes comprising a copolymer consisting of:79 to 98% by weight of at least one selected from the group consisting of (a) an ethylenically unsaturated carbonic acid ester monomer and (b) a vinyl monomer and a nitrile monomer;(c) 1 to 20% by weight of an ethylenically unsaturated carbonic acid monomer; and(d) 1 to 20% by weight of a phosphorus (P)-containing monomer including a P═O bond and one or more reactive double bonds in a molecular structure thereof, based on the total weight of the binder.2. The binder according to claim 1 , wherein the ethylenically unsaturated carbonic acid ester monomer is at least one monomer selected from the group consisting of methyl acrylate claim 1 , ethyl acrylate claim 1 , propyl acrylate claim 1 , isopropyl acrylate claim 1 , n-butyl acrylate claim 1 , isobutyl acrylate claim 1 , n-amyl acrylate claim 1 , isoamyl acrylate claim 1 , n-hexyl acrylate claim 1 , 2-ethyl hexyl acrylate claim 1 , hydroxy propyl acrylate claim 1 , lauryl acrylate claim 1 , methyl methacrylate claim 1 , ethyl methacrylate claim 1 , propyl methacrylate claim 1 , isopropyl methacrylate claim 1 , n-butyl methacrylate claim 1 , isobutyl methacrylate claim 1 , n-amyl methacrylate claim 1 , isoamyl methacrylate ...

Modified battery anode with carbon nanotubes

An improved anode material for a lithium ion battery is disclosed. The improved anode material can improve both electric conductivity and the mechanical resilience of the anode, thus drastically increasing the lifetime of lithium ion batteries.

Binder Resin for Electrode of Nonaqueous Electrolyte Secondary Battery, Slurry Composition, Electrode for Nonaqueous Electrolyte Secondary Battery, and Nonaqueous Electrolyte Secondary Battery

A binder resin for an electrode of a nonaqueous electrolyte secondary battery is provided, which is used as the binder resin in a slurry composition for an electrode of a nonaqueous electrolyte secondary battery, containing a binder resin, an active material and an organic solvent. 3. The binder resin for an electrode of a nonaqueous electrolyte secondary battery according to claim 1 , wherein said binder resin contains a polymer having a vinyl cyanide monomer unit.4. A slurry composition for an electrode of a nonaqueous electrolyte secondary battery claim 1 , containing the halogen element-free binder resin according to claim 1 , an active material and an organic solvent.5. An electrode for a nonaqueous electrolyte secondary battery claim 1 , comprising a current collector and an electrode mixture layer provided on said current collector claim 1 , wherein{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'said electrode mixture layer contains the binder resin for an electrode of a nonaqueous electrolyte secondary battery according to and an active material.'}6. An electrode for a nonaqueous electrolyte secondary battery claim 1 , comprising a current collector and an electrode mixture layer provided on said current collector claim 1 , wherein{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'said electrode mixture layer is obtained by coating the slurry composition for an electrode of a nonaqueous electrolyte secondary battery according to on the current collector and drying the coating.'}7. A nonaqueous electrolyte secondary battery claim 5 , comprising the electrode for a nonaqueous electrolyte secondary battery according to .8. A binder resin composition for an electrode of a nonaqueous electrolyte battery claim 5 , comprising a polymer (A) having a vinyl cyanide monomer (a1) unit as the main component and a polymer (B) containing a phosphoric acid-containing monomer (b1) unit.9. The binder resin composition for an electrode of a nonaqueous electrolyte battery ...

COATING LIQUID, CONDUCTIVE COATING FILM, ELECTRODE PLATE FOR ELECTRICITY STORAGE DEVICE, AND ELECTRICITY STORAGE DEVICE

Disclosed is a coating formulation useful in forming a conductive coating film on a surface of a collector for constructing an electrode plate for an electricity storage device. The coating formulation contains (A) a polymeric acid, (B) a vinyl carboxylate copolymer represented by the following formula (1): 2. The coating formulation according to claim 1 , wherein the cation is a lithium or tetraalkylammonium ion.3. The coating formulation according to claim 1 , further comprising a titanium-based coupling agent and/or a silane coupling agent.4. The coating formulation according to claim 1 , wherein the polymeric acid comprises at least one polymeric acid selected from the group consisting of polyacrylic acid claim 1 , polyitaconic acid claim 1 , and polymaleic acid.5. The coating formulation according to claim 1 , wherein the conductive material comprises at least one conductive material selected from the group consisting of acetylene black claim 1 , Ketjenblack claim 1 , graphite claim 1 , furnace black claim 1 , monolayer and multilayer carbon nanofibers claim 1 , and monolayer and multilayer carbon nanotubes.6. The coating formulation according to claim 1 , wherein:a content of the polymeric acid per part by mass of the conductive material is from 0.1 to 3 parts by mass,a content of the vinyl carboxylate copolymer per part by mass of the conductive material is from 0.1 to 3 parts by mass, anda solids concentration is from 0.02 to 40 mass %.7. The coating formulation according to claim 1 , wherein:a content of the vinyl carboxylate copolymer per part by mass of the polymeric acid is from 0.1 to 1 parts by mass.8. The coating formulation according to claim 1 , further comprising a crosslinking agent.9. A conductive coating film formed from the coating formulation according to .10. The conductive coating film according to claim 9 , wherein the film formed from the coating formulation has been formed through heat treatment at from 80 to 250° C. claim 9 , and has a ...

Method for producing battery electrode

A main object of the present invention is to provide a method for producing a battery electrode that has excellent adhesion between a collector and an active material layer by suppressing a migration phenomenon. The method for producing a battery electrode of the present invention is a method for producing a battery electrode 30 that has a structure in which an active material layer 20 that includes an active material 22 is held on a collector 10. The method includes a step of applying, onto the collector 10, an active material layer forming paste that contains the active material 22 and polymer materials 24, 26 in a solvent; and a step of drying the applied paste coat material, to form thereby the active material layer 20 on the collector 10. Fibrillated polymer fibers 26 are used as at least one of the polymer materials 24, 26.

CONDUCTIVE COMPOSITION FOR COATING A CURRENT COLLECTOR FOR A BATTERY OR AN ELECTRICAL DOUBLE LAYER CAPACITOR, CURRENT COLLECTOR FOR BATTERY OR ELECTRICAL DOUBLE LAYER CAPACITOR, BATTERY, AND ELECTRICAL DOUBLE LAYER CAPACITOR

A conductive composition for coating a current collector of coating a current collector for a battery or an electrical double layer capacitor, where the adhesion properties between a battery current collector and an active material layer are increased to improve the battery characteristics is presented. A battery using the battery current collector using the composition is also presented. The conductive composition for coating the current collector includes a vinylsilane copolymer, a polycarboxylic acid, and a conductive auxiliary. The formulation of the vinylsilane copolymer is also presented. 2. The conductive composition for coating a current collector for a battery or an electrical double layer capacitor according to claim 1 , wherein X is a single bond or a group selected from the group consisting of an alkylene claim 1 , alkenylene claim 1 , or alkynylene having 6 carbon atoms or less claim 1 , a phenylene claim 1 , a naphthylene claim 1 , a structure of the above group having hydrogen(s) replaced by fluorine(s) claim 1 , —CHOCH— claim 1 , —(OCH) claim 1 , —(CHO)CH— claim 1 , —CO— claim 1 , —COCO— claim 1 , —CO(CH)CO— claim 1 , —CO(CH)CO— claim 1 , —S— claim 1 , —CS— claim 1 , —SO— claim 1 , —SO2- claim 1 , —NR— claim 1 , —CONR— claim 1 , —NRCO— claim 1 , CSNR— claim 1 , —NRCS— claim 1 , —NRNR— claim 1 , and —HPO— (wherein R each occurrence independently represents a hydrogen atom or an alkylene group having 6 carbon atoms or less claim 1 , and m is a natural number).3. The conductive composition for coating a current collector for a battery or an electrical double layer capacitor according to claim 1 , wherein the active hydrogen group is a group selected from the group consisting of a hydroxyl group (—OH) claim 1 , a carboxyl group (—COON) claim 1 , an amino group (—NH claim 1 , —NHR) claim 1 , a hydrazide group (RRNN(R)C(═O)R) claim 1 , a hydroxyamino group (—NHOH) claim 1 , a sulfonic group (—SOH) claim 1 , and a thiol group (—SH) (wherein claim 1 , in the ...

Positive electrode for secondary battery and manufacturing method of positive electrode for secondary battery

The positive electrode active material layer includes a plurality of particles of a positive electrode active material and a reaction mixture where reduced graphene oxide is bonded to a polymer having a functional group as a side chain. The reduced graphene oxide has a sheet-like shape and high conductivity and thus functions as a conductive additive by being in contact with the plurality of particles of the positive electrode active material. The reaction mixture serves as an excellent binder since the reduced graphene oxide is bonded to the polymer. Therefore, even a small amount of the reaction mixture where the reduced graphene oxide is covalently bonded to the polymer excellently serves as a conductive additive and a binder.

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.

Secondary battery

An object is to provide a higher-performance secondary battery, particularly to provide a secondary battery having a low impedance. The present exemplary embodiment is a secondary battery comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid, and a package accommodating the electrode assembly and the electrolyte liquid, wherein the negative electrode includes a negative electrode active substance containing at least one selected from a metal (a) capable of being alloyed with lithium, and a metal oxide (b) capable of occluding and releasing lithium ions, a negative electrode binder, and a negative electrode current collector; and the electrolyte liquid contains a sulfide compound.

NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, AND MANUFACTURING METHOD FOR SAME

Provided herein are means for increasing the cycle characteristics of a lithium-ion secondary battery when silicon negative electrode active material is included as the negative electrode active material. The negative electrode for a lithium-ion secondary battery, according to one embodiment, is obtained by preparing a negative electrode active material slurry by mixing negative electrode active material, a binder material, and a binding properties improving agent in a solvent, applying the negative electrode active material slurry on the surface of a collector, and heat treating in anaerobic conditions. The negative electrode active material contains silicon as the main component thereof. The binder material is at least one kind selected from the group consisting of polyimide, polyamide and polyamideimide, and prepolymers of the same. The binding properties improving agent is at least one kind selected from the group consisting of polyvalent carboxylic acid and derivatives of the same, and polyvalent amine. 1. A negative electrode for a lithium ion secondary battery comprising:an active material containing silicon as a main component:at least one binder material selected from the group consisting of polyimide, polyamide and polyamideimide, and prepolymers of the same; andat least one binding enhancing agent selected from the group consisting of polyvalent carboxylic acid, its derivatives and polyvalent amine in a solvent; and, wherein the active material and the binder material are chemically bound through the binding enhancing agent.2. (canceled)3. The negative electrode for a lithium ion secondary battery according to claim 1 , wherein the binding enhancing agent is at least one selected from the half ester of polycarboxylic acid.4. The negative electrode for a lithium ion secondary battery according to claim 1 , wherein the binding enhancing agent is a polyvalent amine.5. A method for manufacturing a negative electrode for a lithium ion secondary battery ...

Binder For Secondary Battery Providing Excellent Cycle Property

Provided is a binder for secondary battery electrodes wherein the content of a gel comprising a polymer particle obtained by copolymerizing three or more types of monomers is 50 to 100% by weight and a swelling index of the binder to an electrolyte is 1.1 to 5.0. The binder fundamentally improves electrode stability due to the gel content defined above and increases ionic conductivity due to the swelling index, thus providing secondary batteries with superior cycle properties. 1. A binder for secondary battery electrodes wherein the content of a gel comprising a polymer particle obtained by copolymerizing three or more types of monomers is 50 to 100% by weight and a swelling index of the binder to an electrolyte is 1.1 to 5.02. The binder according to claim 1 , wherein the three or more types of monomers are a mixture of an ethylenically unsaturated carbonic acid ester monomer claim 1 , at least one monomer selected from the group consisting of a vinyl monomer and a nitrile monomer claim 1 , and an ethylenically unsaturated carbonic acid monomer.3. The binder according to claim 2 , wherein a mixture of the ethylenically unsaturated carbonic acid ester monomer and the at least one monomer selected from the group consisting of a vinyl monomer and a nitrile monomer is present in an amount of 80 to 99% by weight claim 2 , based on the total weight of the binder claim 2 , and the ethylenically unsaturated carbonic acid monomer is present in an amount of 1 to 20% by weight claim 2 , based on the total weight of the binder.4. The binder according to claim 3 , wherein the ethylenically unsaturated carbonic acid ester monomer and the at least one monomer selected from a vinyl monomer and a nitrile monomer are added in a molar ratio of 1:10 to 10:1.5. The binder according to claim 2 , wherein the ethylenically unsaturated carbonic acid ester monomer is at least one monomer selected from the group consisting of the ethylenically unsaturated carbonic acid ester monomer is at ...

Binder For Secondary Battery Exhibiting Excellent Adhesion Force

Provided is a binder for secondary battery electrodes comprising polymer particles obtained by polymerizing three or more kinds of monomers wherein the polymer particles have a mean particle diameter of 0.3 μm to 0.7 μm. The binder exhibits superior adhesion force to electrode current collectors and excellent support force to the active material and basically improves safety of electrodes, thus providing a secondary battery with superior cycle characteristics. 1. A binder for secondary battery electrodes comprising polymer particles obtained by polymerizing three or more kinds of monomers wherein the polymer particles have a mean particle diameter of 0.3 μm to 0.7 μm.2. The binder according to claim 1 , wherein the polymer particles have a mean particle diameter of 0.4 μm to 0.6 μm.3. The binder according to claim 1 , wherein the polymer particles have a mean particle diameter of 0.4 μm to 0.5 μm.4. The binder according to claim 1 , wherein the three or more kinds of monomers are a mixture of a (meth)acrylic acid ester monomer (a); at least one monomer selected from the group consisting of an acrylate monomer claim 1 , a vinyl monomer and a nitrile monomer (b); and a unsaturated monocarbonic acid monomer (c).5. The binder according to claim 4 , wherein the (meth)acrylic acid ester monomer (a) is present in an amount of 15 to 99% by weight claim 4 , the monomer (b) is present in an amount of 1 to 60% by weight claim 4 , and the unsaturated monocarbonic acid monomer (c) is present in an amount of 1 to 25% by weight claim 4 , based on the total weight of the binder.6. The binder according to claim 4 , wherein the (meth)acrylic acid ester monomer is at least one monomer selected from the group consisting of methyl acrylate claim 4 , ethyl acrylate claim 4 , propyl acrylate claim 4 , isopropyl acrylate claim 4 , n-butyl acrylate claim 4 , isobutyl acrylate claim 4 , n-amyl acrylate claim 4 , isoamyl acrylate claim 4 , n-ethyl hexyl acrylate claim 4 , 2-ethyl hexyl ...

BINDER FOR SECONDARY BATTERY EXIBITING EXCELLENT ADHESION FORCE

Provided is a binder for secondary battery electrodes comprising a polymer obtained by polymerizing three or more kinds of monomers with a reactive emulsifying agent. The binder reduces moisture impregnation, improves dispersibility and enhances adhesive force, thus providing a secondary battery with superior safety and cycle characteristics. 1. A binder for secondary battery electrodes comprising a polymer obtained by polymerizing three or more kinds of monomers with a reactive emulsifying agent.2. The binder according to claim 1 , wherein the three or more kinds of monomers are a mixture of: a (meth)acrylic acid ester monomer (a); at least one monomer selected from the group consisting of an acrylate monomer claim 1 , a vinyl monomer and a nitrile monomer (b); and a unsaturated monocarbonic acid monomer (c).3. The binder according to claim 2 , wherein the (meth)acrylic acid ester monomer (a) is present in an amount of 10 to 99% by weight claim 2 , the monomer (b) is present in an amount of 1 to 60% by weight claim 2 , the unsaturated monocarbonic acid monomer (c) is present in an amount of 1 to 20% by weight claim 2 , and the reactive emulsifying agent is present in an amount of 0.1 to 10% by weight claim 2 , based on the total weight of the binder.4. The binder according to claim 2 , wherein the (meth)acrylic acid ester monomer is at least one monomer selected from the group consisting of methyl acrylate claim 2 , ethyl acrylate claim 2 , propyl acrylate claim 2 , isopropyl acrylate claim 2 , n-butyl acrylate claim 2 , isobutyl acrylate claim 2 , n-amyl acrylate claim 2 , isoamyl acrylate claim 2 , n-ethyl hexyl acrylate claim 2 , 2-ethyl hexyl acrylate claim 2 , 2-hydroxy ethyl acrylate claim 2 , methyl methacrylate claim 2 , ethyl methacrylate claim 2 , propyl methacrylate claim 2 , isopropyl methacrylate claim 2 , n-butyl methacrylate claim 2 , isobutyl methacrylate claim 2 , n-amyl methacrylate claim 2 , isoamyl methacrylate claim 2 , n-hexyl methacrylate ...

HIGH CAPACITY ALLOY ANODES AND LITHIUM-ION ELECTROCHEMICAL CELLS CONTAINING SAME

A lithium-ion electro-chemical cell that includes a cathode that includes an electrochemically-active metal oxide coating on a first current collector, an electrolyte, and an anode that includes an electrochemically-active alloy coating on a second current collector. Both the anode and the cathode have a reversible capacity of greater than 4.5 mAh/cmper coated side. The metal oxide coating typically comprises cobalt, manganese, nickel, or a combination thereof. The reversible capacity of the cathode is within % of the reversible capacity of the anode. 2. A lithium-ion electrochemical cell according to claim 1 , wherein both the anode and cathode have an electrode loading of greater than about 6 mAh/cmper coated side.3. A lithium-ion electrochemical cell according to claim 1 , wherein both the anode and cathode have an electrode loading of greater than about 8 mAh/cmper coated side.4. A lithium-ion electrochemical cell according to claim 1 , wherein the electrochemically-active alloy comprises silicon or tin.5. A lithium-ion electrochemical cell according to claim 1 , wherein the electrochemically-active metal oxide coating comprises cobalt claim 1 , manganese claim 1 , or nickel.6. A lithium-ion electrochemical cell according to claim 1 , wherein the electrochemically-active metal oxide coating comprises cobalt claim 1 , manganese and nickel.7. A lithium-ion electrochemical cell according to claim 1 , wherein at least one of the electrochemically-active metal oxide coating or the electrochemically-active alloy coating comprises a binder claim 1 , a conductive diluent claim 1 , or both.8. A lithium-ion electrochemical cell according to claim 7 , wherein the binder comprises lithium polyacrylate.9. A lithium-ion electrochemical cell according to claim 1 , wherein the first current collector comprises aluminum and has two opposing sides.10. A lithium-ion electrochemical cell according to claim 1 , wherein the second current collector comprises copper and has two ...

BINDER COMPOSITION FOR NON-AQUEOUS BATTERY ELECTRODE, ELECTROLYTE SOLUTION COMPOSITION FOR NON-AQUEOUS BATTERY, AND USE THEREOF

A binder composition for a non-aqueous battery electrode containing a binder and an ether compound represented by the formula (1), and an electrolyte solution composition for a non-aqueous battery containing an ether compound represented by the formula (1), wherein m and n each independently represent 0 or 1, and Rrepresents a divalent linear hydrocarbon group which may have in the bond thereof one or more intervening groups selected from the group consisting of an oxygen atom, a sulfur atom, and a carbonyl group.

ELECTRODE BINDING MATERIAL WITH Li, Na, K SUBSTITUTED FOR POLYACRYLIC ACID FUNCTIONAL GROUP (COOH) AND A LITHIUM SECONDARY BATTERY USING THE SAME

The present invention is based on an electrode binding material including polyacrylics and a functional group substituent(Li, Na, K) as a binder of an electrode. The present invention provides a polyacrylic acid an electrode binding material including a polyacrylics mixture having a high degree of polymerization and a functional group with Li, Na or K being substituted and high efficiency Lithium secondary battery utilizing a silicon anode active material etc. using the same. Therefore, the electrode binding material of the present invention has an excellent binding force, and can reduce side reactions in reactions of a secondary battery, and maintain a stable cycle property, and also enhance electric performance. 1. An electrode binding material for a secondary battery including an electrode active material , the electrode binding material comprising:a binder comprising polyacrylics mixture having a functional group(hereinafter, R) with at least one of Li, Na and K being substituted in a polyacrylic acid having 13,000˜18,000 degree of polymerization.2. The electrode binding material of claim 1 , wherein said polyacrylics mixture further comprises a first polymer claim 1 , a second polymer claim 1 , a third polymer and a fourth polymer claim 1 , wherein said first polymer comprises a polyacrylic acid having R═OH claim 1 , said second polymer comprises polyacrylics having R═Li claim 1 , said third polymer comprises at least one of a monomer selected from a group consisting of R═Na in said first polymer claim 1 , and said fourth polymer comprises at least one of a material selected from a group consisting of polyacrylics having at least one of a monomer consisting of R═K in said first polymer and a combination of said polyacrylics.3. The electrode binding material of claim 1 , wherein the molecular weight of said polyacrylic acid is 1 claim 1 ,000 claim 1 ,000˜1 claim 1 ,250 claim 1 ,000.4. The electrode binding material of claim 1 , wherein said polyacrylics mixture ...

NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY

A negative electrode for a secondary battery and a secondary battery using the negative electrode are provided. The negative electrode includes a current collector, an active material layer, and a high molecular material layer. The current collector includes a plurality of protrusion portions extending substantially perpendicularly and a base portion which includes the same material as the plurality of protrusion portions and is connected to the plurality of protrusion portions. The protrusion portions and the active material layer covering the protrusion portions form negative electrode protrusion portions. The base portion and the active material layer covering the base portion form a negative electrode base portion. Part of side surfaces of the negative electrode protrusion portions including basal portions thereof and a top surface of the negative electrode base portion are covered with the high molecular material layer. 1. A negative electrode for a secondary battery comprising:a current collector including a base portion and protrusion portions which are connected to the base portion and extend in a direction substantially perpendicular to a top surface of the base portion;an active material layer; anda high molecular material layer,wherein the base portion and the protrusion portions comprise a same material,wherein top surfaces and side surfaces of the protrusion portions are covered with the active material layer to form negative electrode protrusion portions,wherein the top surface of the base portion is covered with the active material layer to form a negative electrode base portion, andwherein part of side surfaces of the negative electrode protrusion portions including basal portions thereof and a top surface of the negative electrode base portion are covered with the high molecular material layer.2. The negative electrode for a secondary battery according to claim 1 , wherein the material of the protrusion portions and the base portion is a conductive ...

NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Provided are a negative electrode for a secondary battery realizing satisfactory cycle characteristics and a method for manufacturing the same, and a nonaqueous electrolyte secondary battery having satisfactory cycle characteristics. A negative electrode for a secondary battery formed by bonding a negative electrode active material to a negative electrode collector with a negative electrode binder, in which the negative electrode binder is a polyimide or a polyamide-imide, and the negative electrode collector is a Cu alloy containing at least one metal (a) selected from the group consisting of Sn, In, Mg and Ag and has a conductivity of 50 IACS % or more. The negative electrode for a secondary battery can be manufactured by a method including forming a negative electrode layer containing the negative electrode active material and the precursor of the negative electrode binder on the negative electrode collector; and bonding the negative electrode active material to the negative electrode collector with the negative electrode binder by curing the precursor of the negative electrode binder at 250 to 350° C. 1. A negative electrode for a secondary battery formed by bonding a negative electrode active material to a negative electrode collector with a negative electrode binder , whereinthe negative electrode binder is a polyimide or a polyamide-imide, andthe negative electrode collector is a Cu alloy comprising at least one metal (a) selected from the group consisting of Sn, In, Mg and Ag and has a conductivity of 50 IACS % or more.2. The negative electrode for a secondary battery according to claim 1 , wherein the Cu alloy comprises 0.01 to 0.3% by mass of the metal (a).3. The negative electrode for a secondary battery according to claim 2 , wherein the Cu alloy comprises 0.05 to 0.2% by mass of Sn as the metal (a).4. The negative electrode for a secondary battery according to claim 1 , wherein the negative electrode collector has a semi-softening temperature of 250° C. ...

ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND BINDER FOR ELECTRODE

An electrode for a nonaqueous electrolyte secondary battery of an embodiment includes: a current collector; and an active material layer including an active material and a binder, formed on the current collector, wherein the binder includes at least an olefin based polymer and a fatty acid, and the fatty acid has a melting point of 25° C. or less and a boiling point of 100° C. or more. 1. An electrode for a nonaqueous electrolyte secondary battery , comprising:a current collector; andan active material layer including an active material and a binder, formed on the current collector, whereinthe binder includes at least an olefin based polymer and a fatty acid, andthe fatty acid has a melting point of 25° C. or less and a boiling point of 100° C. or more.2. The electrode according to claim 1 , wherein a carbon chain of the fatty acid has 4 or more and 15 or less carbon atoms.3. The electrode according to claim 1 , wherein the fatty acid includes at least one of a butanoic acid claim 1 , a pentanoic acid claim 1 , a heptanoic acid claim 1 , an octanoic acid claim 1 , a nonanoic acid claim 1 , a decanoic acid claim 1 , and an undecanoic acid having a straight chain or a branched chain structure.4. The electrode according to claim 3 , wherein the fatty acid includes at least one of a saturated fatty acid and an unsaturated fatty acid.5. The electrode according to claim 1 , wherein a mass of the fatty acid is 1 ppt or more and 1000 ppm or less of a mass of the active material layer.6. A nonaqueous electrolyte secondary battery using an electrode for a nonaqueous electrolyte secondary battery comprising:a current collector; andan active material layer including an active material and a binder, formed on the current collector, whereinthe binder includes at least an olefin based polymer and a fatty acid, andthe fatty acid has a melting point of 25° C. or less and a boiling point of 100° C. or more.7. The battery according to claim 6 , wherein a carbon chain of the fatty acid ...

Negative electrode for lithium-ion secondary battery and manufacturing process for the same

The present invention is characterized in that, in a negative electrode for lithium-ion secondary battery, the negative electrode being manufactured via an application step of applying a binder resin and an active material onto a surface of collector, the binder resin is an alkoxysilyl group-containing resin that has a structure being specified by formula (I); and the active material includes a lithium-inactive metal that does not form any intermetallic compounds with lithium, or a silicide of the lithium-inactive metal, and an elemental substance of Si. It is possible to upgrade cyclic characteristics by means of using the negative electrode for lithium-ion secondary battery according to the present invention. wherein “R 1 ” is an alkyl group whose number of carbon atoms is from 1 to 8; “R 2 ” is an alkyl group or alkoxyl group whose number of carbon atoms is from 1 to 8; and “q” is an integer of from 1 to 100.

Electrode, nonaqueous electrolyte battery, and battery pack

According to one embodiment, there is provided an electrode. The electrode includes a current collector and an active material layer provided on the current collector. The active material layer contains an active material and an acrylic based polymer.

METHOD TO PREPARE SILICON PARTICLES FOR USE IN LITHIUM SECONDARY BATTERY ANODES

The disclosure describes a process to fabricate composite anodes for lithium secondary batteries using silicon particles obtained from the byproducts of silicon manufacturing processes. Silicon particles are obtained from the byproducts of solar cell manufacturing or silicon wafer manufacturing steps such as sawing, polishing and deposition processes. Said silicon particles are mechanically resized, mixed with carbonaceous materials and formed into an anode for a lithium secondary battery. 1. An electrode material for a lithium ion battery containing silicon particles wherein the electrode material is prepared by:a. recovering the silicon particles as a byproduct from the manufacture of single crystalline or polycrystalline silicon products;b. restricting a size of the silicon particles to a range of 10 nm and 10 μm;c. forming the silicon particles with the restricted size into a composite matrix with carbonaceous materials and a binder; andd. attaching the composite matrix to a current collector.2. An electrode material according to wherein the silicon particles are the by-product of wiresaw operations of crystalline silicon ingots and wafers.3. An electrode material according to wherein the silicon particles result from saw kerf from slicing wafers from a silicon ingot.4. An electrode material according to wherein the silicon particles are the by-product of lapping claim 1 , grinding claim 1 , or polishing of crystalline silicon ingots and wafers.5. An electrode material according to wherein the silicon particles are the by-product of a vapor deposition reactor.6. An electrode material according to wherein the silicon particles are resized via mechanical milling.7. An electrode material according to wherein a solvent is used to aid in resizing the silicon particles.8. An electrode material according to wherein the resizing of the silicon particles is carried out in a ball mill.9. An electrode material according to wherein the silicon particles are recovered with a ...

Nonaqueous Electrolyte Rechargeable Battery Having Electrode Containing Conductive Polymer

A nonaqueous electrolyte rechargeable battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode includes a positive-electrode active material that occludes and discharges an alkali metal ion. The negative electrode includes a negative-electrode active material that occludes and discharges an alkali metal ion. At least one of the positive electrode and the negative electrode contains a conductive polymer that binds the active material and provides oxidation resistance. 1. A nonaqueous electrolyte rechargeable battery comprising:a positive electrode having a positive-electrode active material that occludes and discharges an alkali metal ion;a negative electrode having a negative-electrode active material that occludes and discharges an alkali metal ion; andan electrolyte solution, whereinat least one of the positive electrode and the negative electrode contains a conductive polymer that binds the active material of the at least one of the positive electrode and the negative electrode, and provides oxidation resistance.3. The nonaqueous electrolyte rechargeable battery according to claim 2 , whereinthe sulfonic acid group-containing polymer is selected from the group consisting of polyisoprene sulfonic acid, styrene butadiene copolymer sulfonic acid, and styrene isoprene copolymer sulfonic acid.4. The nonaqueous electrolyte rechargeable battery according to claim 2 , whereinin the dopant doped in the conductive polymer, at least a part of sulfonic acid group is masked with the alkali metal ion.5. The nonaqueous electrolyte rechargeable battery according to claim 1 , wherein the alkali metal ion is a lithium ion.6. The nonaqueous electrolyte rechargeable battery according to claim 1 , whereinthe positive-electrode active material includes a lithium transition metal composite compound, andthe conductive polymer is contained in the positive electrode. This application is based on Japanese Patent Applications No. 2012- ...

ELECTRONICALLY CONDUCTIVE POLYMER BINDER FOR LITHIUM-ION BATTERY ELECTRODE

A family of carboxylic acid groups containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. Triethyleneoxide side chains provide improved adhesion to materials such as, graphite, silicon, silicon alloy, tin, tin alloy. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current. 2. The polymeric composition of wherein: a=0-1 claim 1 ,000 claim 1 , b=0-1 claim 1 ,000 claim 1 , c=0-1 claim 1 ,000 claim 1 , d=0-1 claim 1 ,000 where n=1-100 claim 1 ,000.3. The polymeric composition of wherein: a=b+c+d.5. polymeric composition of wherein: a=0-1 claim 4 ,000 claim 4 , b=0-1 claim 4 ,000 claim 4 , c=0-1 claim 4 ,000 claim 4 , 0-1 claim 4 ,000 where n=1-100 claim 4 ,000.6. The polymeric composition of wherein: a=b+c+d. This application is a continuation-in-part of U.S. application Ser. No. 13/294,885, filed Nov. 11, 2011 and entitled Electronically Conductive Polymer Binder for Lithium-ion Battery Electrode; which is a continuation of PCT Application No. PCT/US2010/035120, filed May 17, 2010 and entitled Electronically Conductive Polymer Binder for Lithium-Ion Battery Electrode; which claims priority to U.S. Provisional Application Ser. No. 61/179,258 filed May 18, 2009, and U.S. Provisional Application Ser. No. 61/243,076 filed Sep. 16, 2009, both entitled Electronically Conductive Polymer Binder for Lithium-ion Battery Electrode, Liu et al, inventors, each of which applications is incorporated herein by reference as if fully set forth in their entirety.The invention described ...

BINDER FOR LITHIUM ION BATTERY ELECTRODE, PASTE FOR LITHIUM ION BATTERY NEGATIVE ELECTRODE, AND METHOD FOR PRODUCING LITHIUM ION BATTERY NEGATIVE ELECTRODE

The present invention is directed to a binder for a lithium ion battery electrode, comprising a polyimide precursor having a tetracarboxylic acid residue and a diamine residue and/or a polyimide, the polyimide precursor having a residue of a tetracarboxylic dianhydride selected from those represented by the following general formulas (1) and (2) as the tetracarboxylic acid residue, and a residue of a diamine selected from those represented by the following general formulas (3) and (4) as the diamine residue, the content of the acid residue being from 0.90 to 0.95 moles based on 1 mole of the diamine residue. 3. A paste for a lithium ion battery negative electrode claim 1 , comprising the binder for a lithium ion battery electrode according to claim 1 , and a negative electrode active material containing one or more atoms selected from a silicon atom claim 1 , a tin atom and a germanium atom.4. A method for producing a lithium ion battery negative electrode claim 3 , which comprises applying the paste for a lithium ion battery negative electrode according to on a metal foil in a thickness of 1 to 100 μm claim 3 , followed by subjecting to a heat treatment at 100 to 500° C. for 1 minute to 24 hours.5. A paste for a lithium ion battery negative electrode claim 2 , comprising the binder for a lithium ion battery electrode according to claim 2 , and a negative electrode active material containing one or more atoms selected from a silicon atom claim 2 , a tin atom and a germanium atom. The present invention relates to a binder for a lithium ion battery electrode, a paste for a lithium ion battery negative electrode using the same, and a method for producing a lithium ion battery negative electrode.A lithium ion battery, as a chargeable high capacity battery, enabled an electronic device to have a higher function and to operate over a long time. Furthermore, the lithium ion battery is installed in vehicles and is considered as a promising battery of hybrid vehicles and ...

NEGATIVE-ELECTRODE MATERIAL FOR ELECTRICITY STORAGE DEVICE, AND NEGATIVE ELECTRODE FOR ELECTRICITY STORAGE DEVICE USING SAME

The negative electrode material for an electricity storage device comprising a negative electrode active material containing an oxide material, and a binder made of a water-soluble polymer. As the water-soluble polymer, a cellulose derivative or polyvinyl alcohol can be used. 1. A negative electrode material for an electricity storage device , comprising:a negative electrode active material containing an oxide material; anda binder made of a water-soluble polymer.2. The negative electrode material for an electricity storage device according to claim 1 , wherein the water-soluble polymer comprises a cellulose derivative or polyvinyl alcohol.3. The negative electrode material for an electricity storage device according to claim 1 , which comprises the binder at 2 to 30 mass %.4. The negative electrode material for an electricity storage device according to claim 1 , wherein the oxide material comprises POand/or BO.5. The negative electrode material for an electricity storage device according to claim 4 , wherein the oxide material is made of a compound comprising POand/or BOand SnO.6. The negative electrode material for an electricity storage device according to claim 5 , wherein the oxide material comprises claim 5 , as a composition in terms of mol % claim 5 , 45 to 95% of SnO and 5 to 55% of PO.7. The negative electrode material for an electricity storage device according to claim 5 , wherein the oxide material comprises claim 5 , as a composition in terms of mol % claim 5 , 10 to 85% of SnO claim 5 , 3 to 90% of BO claim 5 , and 0 to 55% of PO claim 5 , provided that BO+POis 15% or more.8. The negative electrode material for an electricity storage device according to claim 1 , further comprising at least one kind of metal material selected from Si claim 1 , Sn claim 1 , Al claim 1 , and an alloy containing any one of Si claim 1 , Sn claim 1 , and Al.9. The negative electrode material for an electricity storage device according to claim 1 , further comprising a ...

Si Composite Electrode with Li Metal Doping for Advanced Lithium-ion Battery

A silicon electrode is described, formed by combining silicon powder, a conductive binder, and SLMP™ powder from FMC Corporation to make a hybrid electrode system, useful in lithium-ion batteries. In one embodiment the binder is a conductive polymer such as described in PCT Published Application WO 2010/135248 A1. 1. A composition of matter comprising:an active electrode material selected from the group comprising silicon, or tin;a conductive binder; and,a stabilized lithium metal powder.2. The composition of matter of wherein the composition is deposited onto a copper foil.3. The composition of matter of wherein the composition is deposited onto the copper foil to form a film laminate.4. The composition of matter of wherein an exposed side of said film laminate includes a carbonate stabilizer.5. The composition of matter of wherein the carbonate stabilizer is ethylene carbonate.6. The composition of matter of wherein said carbonate stabilizer is an alkylene carbonate.7. The composition of matter of where said carbonate stabilizer is a vinylene carbonate.8. The composition of matter of where the active electrode material is silicon.10. The composition of matter of wherein the ratio of silicon/SLMP/conductive binder is 2/7/1 by weight.11. An electrode for use in a lithium-ion battery including the composition of matter of .12. A lithium ion battery having a negative electrode claim 1 , wherein said electrode comprises a laminate of the composition of matter of in combination with a current collector.13. The lithium ion battery of wherein the laminate comprises a copper foil current collector in electrical contact with a covering layer of the composition of matter of .14. A method of forming the laminate of wherein silicon in powder form is combined with SLMP in powder form and a conductive polymer binder claim 13 , the three components mixed in an organic solvent to form a slurry claim 13 , the slurry then deposited onto a conductive claim 13 , supporting substrate ...

BINDER COMPOSITION FOR RECHARGEABLE BATTERY, RECHARGEABLE BATTERY EMPLOYING THE SAME AND METHOD OF PRODUCING ELECTRODE FOR RECHARGEABLE BATTERY

In one aspect, a binder composition for a rechargeable battery, a rechargeable battery employing the same and a method of producing an electrode of the rechargeable battery is provided. 1. A binder composition for a rechargeable battery , the binder composition comprising a solvent-insoluble pore forming material and a solvent-soluble polymer , wherein the solvent-insoluble pore forming material is pyrolyzed.2. The binder composition of claim 1 , wherein the solvent-soluble polymer is pyrolyzed in an amount of less than 10% by weight and the solvent-insoluble pore forming material is pyrolyzed in an amount of greater than 90% by weight claim 1 , based on the initial weight of the binder at an initial reaction stage.3. The binder composition of claim 1 , wherein the solvent-soluble polymer and the solvent-insoluble pore forming material are mixed in a weight ratio of 50:50 to 95:5 based on a total weight of solid matter.4. The binder composition of claim 1 , wherein the solvent-soluble polymer is at least one component selected from a group consisting of poly(acrylether ketones) claim 1 , poly(arylamides) claim 1 , aromatic polyamides claim 1 , aromatic poly(amide-imides) claim 1 , aromatic polyurethanes claim 1 , aromatic polyesters claim 1 , polybenzimidazoles claim 1 , polybenzoxazoles claim 1 , polybenzothiazoles claim 1 , aromatic polysulfones claim 1 , aromatic poly(ethersulfones) claim 1 , aromatic poly(phenylene sulfides) and aromatic polyphosphazene.5. The binder composition of claim 1 , wherein the polymer includes one or more components selected from the group consisting of a polymer having a fluoride substituted claim 1 , a polymer including a sulfone group (—SO—) in a main chain claim 1 , and a block copolymer having another polymer added in the form of a block to the polymer.6. The binder composition of claim 1 , wherein the solvent-insoluble pore forming material is a polymer or an organic-inorganic hybrid.7. The binder composition of claim 1 , wherein ...

BINDER COMPOSITION FOR BATTERIES, SLURRY FOR BATTERY ELECTRODES, SOLID ELECTROLYTE COMPOSITION, ELECTRODE, AND ALL-SOLID-STATE BATTERY

A binder composition for batteries, including (A) a polymer that has at least one structural unit selected from the group consisting of structural units represented by the following formulae (a1) to (a5), respectively, and (f) a functional group containing a nitrogen atom, an oxygen atom, a silicon atom, a germanium atom, a tin atom or a combination thereof; and (B) a liquid medium, the polymer (A) having a solubility of no less than 5 g in 100 g of cyclohexane at 25° C. and 1 atom. 2. The binder composition according to claim 1 , wherein the polymer (A) is obtained by reacting an active end of a polymer having at least one structural unit selected from the structural units represented by the formulae (a1) to (a5) claim 1 , respectively with (m) a denaturant comprising a nitrogen atom claim 1 , an oxygen atom claim 1 , a silicon atom claim 1 , a germanium atom claim 1 , a tin atom or a combination thereof to form a bond.3. The binder composition according to claim 2 , wherein the denaturant (m) is represented by a formula (x):{'br': None, 'sup': 1', '1, 'sub': 4-n1', 'n1, 'RMX\u2003\u2003(x)'}{'sup': 1', '1', '1', '1', '1', '1, 'wherein, in the formula (x), Ris a hydrogen atom or a monovalent hydrocarbon group; M is a silicon atom, a germanium atom, or a tin atom; Xis a halogen atom or an alkoxy group; n1 is an integer of from 2 to 4; and wherein, in a case in which Ris preset in a plurality of number, the plurality of Rs are each identical or different, and in a case in which Xis preset in a plurality of number, the plurality of Xs are each identical or different.'}4. The binder composition according to claim 1 , wherein the polymer (A) is represented by a formula (P):{'br': None, 'sub': a', '4-a, 'LMY\u2003\u2003(P)'}wherein, in the formula (P), L is a polymer chain having at least one structural unit selected from structural units represented by the formulae (a1) to (a5), respectively; M is a silicon atom, a germanium atom, or a tin atom; Y is a hydrogen atom, a ...

POSITIVE ELECTRODE MATERIAL AND POSITIVE ELECTRODE FOR NICKEL-ZINC SECONDARY BATTERY AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE

The present invention provides a positive electrode material for a nickel-zinc secondary battery, a positive electrode for a nickel-zinc secondary battery and a method for preparing the positive electrode. The positive electrode material for a nickel-zinc secondary battery provided by the present invention includes: 68 wt %˜69 wt % positive electrode active material, 0.6 wt %˜1 wt % yttrium oxide, 0.2 wt %˜0.6 wt % calcium hydroxide, 3.5 wt %˜4 wt % nickel powder, and a binder in balance; the positive electrode active material being a spherical nickel hydroxide coated with Co (III). The positive electrode material for a nickel-zinc secondary battery provided by the present invention contains no Co(II) ion and cadmium ion. The positive electrode prepared by the positive electrode material provided by the present invention can reduce the amount of hydrogen evolved in the battery while ensuring relatively high electrode charging/discharging capacity. 1. A positive electrode material for a nickel-zinc secondary battery , characterized in the positive electrode material comprising:{'sup': '3+', '68 wt %˜69 wt % positive electrode active material, 0.6 wt %˜1 wt % yttrium oxide, 0.2 wt %˜0.6 wt % calcium hydroxide, 3.5 wt %˜4 wt % nickel powder, and a binder in balance; the positive electrode active material being a spherical nickel hydroxide coated with Co.'}2. The positive electrode material according to claim 1 , characterized in that the yttrium oxide has a particle diameter of 90 to 120 mesh claim 1 , the calcium hydroxide has a particle diameter of 70 to 90 mesh claim 1 , and the nickel powder has a particle diameter of 50 to 70 mesh.3. The positive electrode material according to claim 1 , characterized in that the binder is a mixture of polytetrafluoroethylene emulsion and carboxymethyl cellulose solution claim 1 , or a mixture of polytetrafluoroethylene emulsion and hydroxypropyl methyl cellulose solution.4. A positive electrode for a nickel-zinc secondary battery ...

WATER SOLUBLE BINDER COMPOSITION, METHOD OF PRODUCING THE SAME AND ELECTRODE FOR RECHARGEABLE BATTERY EMPLOYING THE SAME

In one aspect, a water soluble binder composition, a method of producing the same and an electrode for a rechargeable battery employing the same is provided. 1. A water soluble binder composition for an electrode comprising a polymer binder having at least one amide group and at least one carboxylate group in repeating units of the polymer.5. The water soluble binder composition of claim 2 , wherein M is a protonated amine compound where the protonated amine compound includes at least one primary claim 2 , secondary or tertiary amine compound selected from the group consisting of ammonium hydroxide claim 2 , methylamine claim 2 , dimethylamine claim 2 , trimethylamine claim 2 , ethylamine claim 2 , diethylamine claim 2 , triethylamine claim 2 , propylamine claim 2 , dipropylamine claim 2 , butylamine claim 2 , pentylamine claim 2 , hexylamine claim 2 , cyclohexylamine claim 2 , monomethanolamine claim 2 , dimethanolamine claim 2 , trimethanolamine claim 2 , monoethanolamine claim 2 , diethanolamine and triethanolamine.6. The water soluble binder composition of claim 1 , wherein the polymer binder is a mixture of two or more kinds of polymer binders or a mixture of polymer binders of the same kind having different molecular weights.7. The water soluble binder composition of claim 1 , further comprising one or more other water soluble binders as an auxiliary binder in addition to the polymer binder.8. The water soluble binder composition of claim 7 , wherein the auxiliary binder includes polyvinyl alcohol claim 7 , polyacrylic acid claim 7 , polymethacrylic acid claim 7 , polyacrylic acid copolymer claim 7 , polymethacrylic acid copolymer claim 7 , polyacrylamide claim 7 , polyacrylamide claim 7 , copolymer claim 7 , (modified) butadiene rubber emulsion claim 7 , (modified) styrene-butadiene rubber emulsion and (modified) urethane rubber emulsion.9. The water soluble binder composition of claim 1 , further comprising at least one additive selected from the group ...

ELECTRODE BINDER COMPOSITION FOR NONAQUEOUS ELECTROLYTE BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, AND NONAQUEOUS ELECTROLYTE BATTERY

Provided is a binder composition for electrodes that has high stability in the form of a liquid composition dissolved or dispersed in a solvent and can improve cycle property of a non-aqueous electrolyte battery. The binder composition used is a binder composition including a polymer A containing 80% by weight or more and 99.9% by weight or less of a repeating unit derived from a monomer including a nitrile group and 0.1% by weight or more and 20% by weight or less of a repeating unit derived from an ethylenically unsaturated compound, wherein a weight-average molecular weight of the polymer A is 500,000 to 2,000,000, and a molecular weight distribution (Mw/Mn) of the polymer A is 13 or smaller. 1. A binder composition for an electrode of a non-aqueous electrolyte battery , the binder comprising a polymer A containing 80% by weight or more and 99.9% by weight or less of a repeating unit derived from a monomer including a nitrile group and 0.1% by weight or more and 20% by weight or less of a repeating unit derived from an ethylenically unsaturated compound , whereina weight-average molecular weight of the polymer A is 500,000 to 2,000,000, anda molecular weight distribution (Mw/Mn) of the polymer A is 13 or smaller.2. The binder composition for an electrode of a non-aqueous electrolyte battery according to claim 1 , further comprising a polymer B containing 10% by weight or more and 40% by weight or less of a repeating unit derived from acrylonitrile or methacrylonitrile claim 1 , wherein the polymer B has an iodine number of 50 g/100 g or lower.3. The binder composition for an electrode of a non-aqueous electrolyte battery according to claim 2 , wherein a weight ratio of the polymer A to the polymer B (the polymer A/the polymer B) is 3/7 or higher and 7/3 or lower.4. An electrode for a non-aqueous electrolyte battery claim 2 , comprising a current collector and an electrode material layer provided on at least one side of the current collector claim 2 , wherein{' ...

Method of manufacturing positive electrode active material for lithium ion battery

At least one of an aqueous solution A containing lithium, an aqueous solution B containing iron, manganese, cobalt, or nickel, and an aqueous solution C containing a phosphoric acid includes graphene oxide. The aqueous solution A is dripped into the aqueous solution C, so that a mixed solution E including a precipitate D is prepared. The mixed solution E is dripped into the aqueous solution B, so that a mixed solution G including a precipitate F is prepared. The mixed solution G is subjected to heat treatment in a pressurized atmosphere, so that a mixed solution H is prepared, and the mixed solution H is then filtered. Thus, particles of a compound containing lithium and oxygen which have a small size are obtained.

Negative electrode compostion for rechargeable lithium battery, negative electrode comprising same and rechargeable lithium battery comprising same

A negative electrode composition for a rechargeable lithium battery. The negative electrode includes a negative active material and crystalline carbon conductive material, wherein the negative active material includes soft carbon, and the crystalline carbon conductive material includes graphite having an average particle diameter (D90) of about 1 micrometer to about 20 micrometers.

Polyimide resin composition and laminate including polyimide resin composition

To provide a resin composition that contains a solvent-soluble polyimide and can provide a film exhibiting high viscoelasticity and flexibility at high temperatures. To attain this, a polyimide resin composition is provided that includes a polyimide having a polycondensation unit of a tetracarboxylic acid dianhydride and a diamine, wherein the tetracarboxylic acid dianhydride includes an (α1) tetracarboxylic acid dianhydride represented by general formula (1), or the diamine includes an (β1) aromatic diamine represented by general formula (2), the diamine includes an (β2) aliphatic diamine represented by general formula (3) or (4), a total amour of the (α1) tetracarboxylic acid dianhydride and the (β1) aromatic diamine is 5 to 49 mol % with respect to a total amount of the tetracarboxylic acid dianhydride and the diamine, and an amine equivalent of the polyimide is 4,000 to 20,000.

ELECTRONICALLY CONDUCTIVE POLYMER BINDER FOR LITHIUM-ION BATTERY ELECTRODE

A family of carboxylic acid groups containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. Triethyleneoxide side chains provide improved adhesion to materials such as, graphite, silicon, silicon alloy, tin, tin alloy. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current. This application is a continuation-in-part of U.S. application Ser. No. 13/294,885, filed Nov. 11, 2011 and entitled Electronically Conductive Polymer Binder for Lithium-Ion Battery Electrode; which is a continuation of PCT Application No. PCT/US2010/035120, filed May 17, 2010 and entitled Electronically Conductive Polymer Binder for Lithium-Ion Battery Electrode; which claims priority to U.S. Provisional Application Ser. No. 61/179,258 filed May 18, 2009, and U.S. Provisional Application Ser. No. 61/243,076 filed Sep. 16, 2009, both entitled Electronically Conductive Polymer Binder for Lithium-ion Battery Electrode, Liu et al. inventors, each of which applications is incorporated herein by reference as if fully set forth in their entirety.The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The government has certain rights in this invention.1. Field of the InventionThis invention relates generally to lithium ion batteries, and more specifically to an improved polymeric binder for forming silicon electrodes resulting in battery electrodes of increased charge density.2. Background of the ...

PRODUCTION METHOD OF CARBON MATERIAL FOR SODIUM SECONDARY BATTERY

The invention provides a method for producing a carbon material as a negative electrode active material that can dope and undope a sodium ion. The production method of a carbon material for a sodium secondary battery includes a step of heating at a temperature of 800 to 2500° C. a compound according to Formula (1), Formula (2) or Formula (3), and having 2 or more oxygen atoms, or a mixture of an aromatic derivative 1 having an oxygen atom in the molecule and an aromatic derivative 2 having a carboxyl group in the molecule and being different from the aromatic derivative 1. 2. The production method according to claim 1 , wherein claim 1 , as to the organic compound 1 claim 1 , Rand Rtogether represents —O— claim 1 , and/or Rand Rtogether represents —CO—O— or —SO—O— in the formula (1).3. The production method according to claim 1 , wherein any one of Rto Ris a hydroxy group claim 1 , an alkoxy group claim 1 , or an acyl group claim 1 , and any one of Rto Ris a hydroxy group claim 1 , an alkoxy group claim 1 , or an acyl group.4. The production method according to claim 1 , wherein any one of Rto Ris a hydroxy group claim 1 , an alkoxy group claim 1 , or an acyl group claim 1 , and any one of Rto Ris a hydroxy group claim 1 , an alkoxy group claim 1 , or an acyl group.5. The production method according to claim 1 , wherein claim 1 , as to the organic compound 2 claim 1 , the aromatic derivative having an oxygen atom is phenol claim 1 , resorcinol claim 1 , or cresol claim 1 , and the aromatic derivative having a carboxyl group is phthalic anhydride.6. A sodium secondary battery comprising a first electrode including the carbon material for a sodium secondary battery produced by the production method according to claim 5 , and a binding agent; a second electrode; and an electrolyte.7. The sodium secondary battery according to claim 6 , wherein the second electrode comprises a transition metal compound containing sodium represented by the following formula (A):{'br': ...

Composite Anodes with an Interfacial Film

A composite anode for lithium secondary battery, which has an active anode material layer formed on a conductive substrate and an interfacial film coated on the active anode material layer, wherein the active anode material layer includes carbonaceous materials, other active and inactive materials, and a binder. The anode increases degree of the anode active material utilization and the cycle life and characteristic and capacity of the battery can be improved. 1. A composite anode , comprising:a conductive current collector;an anode active material layer comprising at least one active material selected from the group consisting of carbon, silicon, germanium, tin, indium, gallium, aluminum, and boron; andan interfacial film covalently bonded onto the anode active material layer.2. The composite anode of claim 1 , wherein the interfacial film is a layer of polymer and wherein the polymer is made of about 10 to 100 claim 1 ,000 monomer molecules.3. The composite anode of claim 1 , wherein the interfacial film has a thickness of about 0.1 to 50 micrometers.4. The composite anode of claim 1 , wherein the interfacial film is formed on the anode active material layer prior to being assembled in a lithium secondary cell.5. The composite anode of claim 1 , wherein the anode active material layer further includes at least one conductive agent selected from the group consisting of carbon black claim 1 , graphite claim 1 , carbon fiber claim 1 , and etc.6. The composite anode of claim 1 , wherein the anode active material layer further includes a polymer binder selected from claim 1 , polyvinylidene fluoride claim 1 , sodium carboxymethyl cellulose claim 1 , styrene-butadiene rubber claim 1 , or combinations thereof7. The composite anode of claim 2 , wherein the monomer molecules include 1 to about 20 functional groups per molecule and wherein the functional groups are selected from the group consisting of an amide claim 2 , an alkoxy claim 2 , an acetoxy claim 2 , an acryloxy ...

Electrode for non-aqueous electrolyte secondary battery, method for producing same, and non-aqueous electrolyte secondary battery

Provided are an electrode for a non-aqueous electrolyte secondary battery capable of improving the dispersibility of a conducting agent in the electrode and forming a good conductive network, a method for producing the same, and a non-aqueous electrolyte secondary battery. An electrode for a non-aqueous electrolyte secondary battery includes an active material, a binder, carbon nanotubes, and a non-fibrous conductive carbon material, characterized in that the electrode includes a polyvinylpyrrolidone-based polymer in an amount in the range of 5 to 25 parts by mass relative to 100 parts by mass of the carbon nanotubes.

Modifier for polyvinylidene fluoride, binder resin composition for battery, electrode for secondary battery and battery

A modifier for polyvinylidene fluoride (PVDF), which improves the adhesion of PVDF to a metal, a binder resin composition for battery and a battery using the PVDF modifier are provided. The modifier for polyvinylidene fluoride herein is a modifier in which the peeling strength of a specific cured film to an aluminium foil is 20 g/cm or more, and the specific cured film is obtained from a mixture of 6 parts by mass of the modifier for polyvinylidene fluoride and 14 parts by mass of a polyvinylidene fluoride composition. The modifier preferably contains a macromonomer copolymer (X), obtained by polymerizing both a macromonomer (A) having unsaturated double bonds and a vinyl monomer (B) having polar groups. The macromonomer (A) is preferably a methacrylic acid ester-based macromonomer (A-1). The vinyl monomer (B) is preferably a methacrylate, and a fluoroalkyl methacrylate.

COATING FORMULATION FOR MANUFACTURING ELECTRODE PLATE AND USE THEREOF

This invention relates to a coating formulation for manufacturing an electrode plate, which contains a solution of a hydroxyalkylchitosan and an organic acid and/or its derivative in an aprotic polar solvent, and an active material added to the solution and kneaded with the solution, the electrode plate, a manufacturing process of the electrode plate, a battery, a capacitor, and an undercoating formulation. According to this invention, a coating formulation for manufacturing an electrode plate for a nonaqueous electrolyte secondary battery or an electrode plate for an electric double layer capacitor having excellent adhesion and improved contact resistance between an active material layer and a collector, the electrode plate, its manufacturing process, the battery and the capacitor can be provided. 1. A coating formulation for manufacturing an electrode plate , comprising: a solution of a hydroxyalkylchitosan and a polybasic acid and/or a derivative thereof in an aprotic polar solvent , and an active material added to and kneaded with said solution , wherein said polybasic acid is pyromellitic acid and/or trimellitic acid , and said polybasic acid and/or said derivative thereof is used in an amount of from 20 to 300 parts by weight per 100 parts by weight of said hydroxyalkylchitosan.2. A coating formulation according to claim 1 , wherein said hydroxyalkylchitosan is at least one hydroxyalkylchitosan selected from the group consisting of hydroxyethylchitosan claim 1 , hydroxypropylchitosan claim 1 , hydroxybutylchitosan and glycerylated chitosan.3. A coating formulation according to claim 1 , further comprising claim 1 , as a conductive aid claim 1 , one of acetylene black claim 1 , Ketjenblack claim 1 , and other carbon-based conductive aids.4. A coating formulation according to claim 1 , wherein said aprotic polar solvent is at least one solvent selected from the group consisting of N claim 1 ,N-dimethylformamide claim 1 , N claim 1 ,N-dimethylacetamide claim 1 , ...

BINDER COMPOSITION FOR ELECTRODE OF ELECTRIC STORAGE DEVICE

A binder composition for an electrode of an electric storage device is provided. The binder composition comprises (A) at least one polymer selected from the group consisting of polyamic acids and imidized polymers thereof having an imidization rate of 50% or less and (B) water. The ratio Ma/Mb of the content of the polymer (A), Ma (parts by mass), to the content of the water (B), Mb (parts by mass), ranges from 500 to 5,000. The binder composition for an electrode of the present invention provides an electric storage device having a large charge/discharge capacity and a low degree of capacity degradation due to repetition of a charge/discharge cycle. 1. A binder composition comprising:(A) at least one polymer selected from the group consisting of a polyamic acid and an imidized polymer of a polyamic acid having an imidization rate of 50% or less; and(B) water,wherein a ratio Ma/Mb of a mass of the polymer (A), Ma, to a mass of the water (B), Mb, is in a range of 500 to 5,000.2. The binder composition of claim 1 , further comprising (C) at least one compound selected from the group consisting of a compound having two or more carboxy groups and an anhydride of a compound having two or more carboxy groups.3. The binder composition of claim 2 , wherein a ratio Ma/Mc of the mass of the polymer (A) claim 2 , Ma claim 2 , to a mass of the compound (C) claim 2 , Mc claim 2 , is in a range of 50 to 400.4. A slurry comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the binder composition of ; and'}an electrode active material.5. The slurry of claim 4 , wherein the electrode active material comprises at least one selected from the group consisting of a simple substance silicon claim 4 , a silicon oxide claim 4 , and a silicon alloy.6. An electric storage device having an electrode comprising:a current collector; andan active material layer disposed on the current collector,{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'wherein the active material layer is formed ...

ELECTRODE BINDER COMPOSITION, ELECTRODE SLURRY, ELECTRODE, ELECTROCHEMICAL DEVICE, METHOD FOR PRODUCING ELECTRODE BINDER COMPOSITION, AND METHOD FOR STORING ELECTRODE BINDER COMPOSITION

An electrode binder composition includes polymer particles. The polymer particles include 5 to 40 parts by mass of a constituent unit (A) derived from an alpha,beta-unsaturated nitrile compound, and 0.3 to 10 parts by mass of a constituent unit (B) derived from an unsaturated carboxylic acid, and have a number average particle size of 50 to 400 nm. The electrode binder composition has a gel content of 90 to 99% and an electrolyte solution swelling ratio of 110 to 400%. 1. An electrode binder composition , comprising:polymer particles,wherein the polymer particles comprise from 5 to 40 parts by mass of a constituent unit (A) derived from an alpha,beta-unsaturated nitrile compound and from 0.3 to 10 parts by mass of a constituent unit (B) derived from an unsaturated carboxylic acid, and having a number average particle size of from 50 to 400 nm, andwherein the electrode binder composition has a gel content of from 90 to 99% and an electrolyte solution swelling ratio of from 110 to 400%.3. The electrode binder composition according to claim 2 ,wherein the compound is hydroxyethyl methacrylate.4. The electrode binder composition according to claim 1 ,wherein the polymer particles further comprise a constituent unit (C) derived from a conjugated diene compound.5. The electrode binder composition according to claim 1 ,wherein the electrode binder composition has a pH of from 6 to 8.6. The electrode binder composition according to claim 1 , wherein a number of particles having a particle size of 20 micrometers or more measured with a particle counter is zero.7. A method for producing the electrode binder composition according to claim 6 , the method comprising:filtering the electrode binder composition so that the number of particles having a particle size of 20 micrometers or more measured with a particle counter is zero.8. An electrode slurry claim 6 , comprising:an active material and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the electrode binder composition ...

BINDER FOR ELECTRODE OF LITHIUM BATTERY, AND ELECTRODE AND LITHIUM BATTERY CONTAINING THE BINDER

A binder for an electrode of a lithium battery, an electrode including the binder, and a lithium battery including the binder. The binder includes an epoxy-phenolic resin and a rubber-based resin, and prevents deformation of an electrode even when expansion and contraction of an active material occur from charging and discharging operations of a lithium battery, and thus improves lifetime of the lithium battery. 1. A binder for an electrode of a lithium battery , the binder comprising an epoxy-phenolic resin and a rubber-based resin.2. The binder for an electrode of a lithium battery of claim 1 , wherein an amount of the rubber-based resin is from about 1 part by weight to about 300 parts by weight based on 100 parts by weight of the epoxy-phenolic resin.3. The binder for an electrode of a lithium battery of claim 1 , wherein the epoxy-phenolic resin comprises an epoxy-based resin claim 1 , a multi-functional phenolic resin claim 1 , and a curing agent.4. The binder for an electrode of a lithium battery of claim 3 , wherein the epoxy-based resin comprises at least one selected from the group consisting of bisphenol-A epoxy resin claim 3 , bisphenol F epoxy resin claim 3 , bisphenol S epoxy resin claim 3 , bisphenol P epoxy resin claim 3 , phenolic novolac epoxy resin claim 3 , cresol novolac epoxy resin claim 3 , bisphenol-A novolac epoxy resin claim 3 , bisphenol F novolac epoxy resin claim 3 , phenolic salicylaldehyde novolac epoxy resin claim 3 , alicyclic epoxy resin claim 3 , aliphatic chain epoxy resin claim 3 , glycidyl ester epoxy resin claim 3 , a glycidyl-etherification product of bifunctional phenol claim 3 , a glycidyl-etherification product of bifunctional alcohol claim 3 , a glycidyl-etherification product of polyphenol claim 3 , and a modified resin thereof.5. The binder for an electrode of a lithium battery of claim 3 , wherein the multi-functional phenolic resin comprises at least one selected from the group consisting of bisphenol F claim 3 , ...

NONAQUEOUS ELECTROLYTE SOLUTION FOR BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME

A nonaqueous electrolyte solution for secondary batteries, which maintains small internal resistance and high electrical capacitance in long-term use in a nonaqueous electrolyte secondary battery uses, as an active material, a crystalline carbon material having a high crystallinity, and a negative electrode produced using a polymeric carboxylic compound as a binding agent. The nonaqueous electrolyte solution contains: (A) at least one compound selected from a group consisting of an unsaturated phosphate ester compound represented by a general formula (1) and an unsaturated phosphate ester compound represented by a general formula (2); (B) at least one compound selected from a group consisting of a sulfite ester compound, a sulfonate ester compound, an alkali metal imide salt compound, a fluorosilane compound, an organic disilane compound or an organic disiloxane compound; (C) an organic solvent, and (D) an electrolyte salt. A secondary battery using such nonaqueous electrolyte solution is also described. 3. The nonaqueous electrolyte solution for batteries according to claim 1 , wherein the (C) component is a mixture of one or more organic solvent selected from a group consisting of a saturated cyclic carbonate compound claim 1 , a saturated cyclic ester compound claim 1 , a sulfone or sulfoxide compound claim 1 , and an amide compound with one or more organic solvents selected from a group consisting of a saturated chain carbonate compound claim 1 , a chain ether compound claim 1 , a cyclic ether compound claim 1 , and a saturated chain ester compound.4. The nonaqueous electrolyte solution for batteries according to claim 1 , wherein the (C) component is an organic solvent containing 0.5 to 30% by mass of the saturated chain ester compound.5. The nonaqueous electrolyte solution for batteries according to further comprising claim 1 , as an (E) component claim 1 , at least one carbonate compound selected from a group consisting of an unsaturated cyclic carbonate ...

ELECTRODES FOR LITHIUM BATTERIES

Cathode or anode, wherein the cathode binder or the anode binder comprises or consists of cellulose and/or cellulose derivatives which are soluble only in ionic liquids, a process for the production thereof and the use of cellulose and/or cellulose derivatives which are soluble only in ionic liquids as binder for producing cathodes and anodes, in particular battery electrodes. 18.-. (canceled)9. An electrode comprising a binder comprising at least one member selected from the group consisting of cellulose and a cellulose derivative , wherein the binder is soluble only in an ionic liquid.10. The electrode as claimed in claim 9 , wherein the binder is cellulose.11. The cathode or anode as claimed in claim 9 , wherein the binder is natural cellulose.12. The electrode as claimed in claim 9 , wherein the amount of cellulose binder is in the range of from 0.1-40% by weight based on the weight of the electrode.13. The electrode as claimed in claim 12 , wherein the amount of cellulose binder is in the range of from 1-35% by weight based on the weight of the electrode.14. The electrode as claimed in claim 13 , wherein the amount of cellulose binder is in the range of from 5-25% by weight claim 13 , based on the weight of the electrode.15. A process for producing an electrode claim 13 , comprising the steps of:dissolving a binder that is soluble only in an ionic liquid in the ionic liquid to form an electrode slurry, wherein the binder is selected from the group consisting of a cellulose and a cellulose derivative, wherein the ionic liquid comprises water and an ion;applying the electrode slurry to a substrate, removing the ionic liquid with a phase inversion process using water or an alcohol as a cosolvent.16. The process as claimed in claim 15 , wherein the binder is cellulose.17. The process as claimed in claim 16 , wherein the cellulose is natural cellulose.18. The process as claimed in claim 15 , wherein the ionic liquid comprises at least one member selected from the ...

NEGATIVE-ELECTRODE MIXTURE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, AND NEGATIVE ELECTRODE, AS WELL AS SECONDARY BATTERY

An object of the present invention is to provide a negative-electrode mixture material for secondary battery that is excellent in terms of high-rate characteristics, and a negative electrode, as well as a secondary battery. A negative-electrode mixture material for secondary battery according to the present invention contains a negative-electrode active material including: a silicon elementary substance and a silicon compound; graphite; and a polyamide-imide/silica hybrid resin being made by bonding an alkoxysilyl group onto a polyamide-imide resin. 110.-. (canceled)12. The negative-electrode mixture material for secondary battery as set forth in claim 11 , wherein claim 11 , when a ratio claim 11 , an entire mass of said negative-electrode mixture material for secondary battery with respect to an entire volume of said negative-electrode mixture material for secondary battery claim 11 , is taken as a density of said negative-electrode mixture material claim 11 , the density of said negative-electrode mixture material is from 0.8 g/cmor more to 1.5 g/cmor less.13. The negative-electrode mixture material for secondary battery as set forth in claim 11 , wherein claim 11 , when said negative-electrode mixture material as a whole is taken as 100% by mass claim 11 , a mass ratio of said negative-electrode active material is from 30% by mass or more to 60% by mass or less.14. The negative-electrode mixture material for secondary battery as set forth in claim 11 , wherein claim 11 , when said negative-electrode mixture material as a whole is taken as 100% by mass claim 11 , a mass ratio of said graphite is from 20% by mass or more to 50% by mass or less.15. The negative-electrode mixture material for secondary battery as set forth in claim 11 , wherein claim 11 , when said negative-electrode mixture material as a whole is taken as 100% by mass claim 11 , a mass ratio of said polyamide-imide/silica hybrid resin is from 0.5% by mass or more to 50% by mass or less.16. The ...

Nonaqueous electrolyte secondary battery and method for manufacturing same

Provided is a nonaqueous electrolyte secondary battery in which a mixture of a graphite material and silicon or a silicon compound is used as a negative electrode active material and which has excellent cycle characteristics. A nonaqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte, and is wherein the negative electrode contains the negative electrode active material and a negative electrode binder, the negative electrode active material is a mixture of a graphite material and silicon and/or a silicon compound that is contained in an amount less than that of the graphite material, and the negative electrode binder is polyacrylonitrile or a modified form thereof which has been heat-treated.

LITHIUM BATTERY BINDER COMPOSITION, METHOD FOR PREPARING THE SAME AND LITHIUM BATTERY INCLUDING THE SAME

A lithium battery binder composition in accordance with some example embodiments of the inventive concept may include a lithium ion polymer, an inorganic particle and an organic solution in which a lithium salt is dissolved. The lithium ion polymer may be a cellulosic polymer having sulfonic acid lithium salt or carboxylic acid lithium salt functional group. The lithium ion polymer may be manufactured by substituting hydroxyl group or carboxylic group of cellulosic polymer. The lithium battery binder composition may be used to at least one of an electrolyte, a cathode layer and an anode layer. 1. A lithium battery binder composition comprising:a cellulosic polymer having a functional group including a lithium ion;an inorganic particle; andan organic solution in which lithium salt is dissolved.2. The lithium battery binder composition of claim 1 , wherein the functional group comprises sulfonic acid lithium salt or carboxylic acid lithium salt.3. The lithium battery binder composition of claim 2 , wherein the sulfonic acid lithium salt comprises at least one of SOLi claim 2 , Si(CH)(CH)C(CF)(CF)SOLi claim 2 , Si(CH)C(CF)(CF)SOLi claim 2 , Si(CF)(CF)SOLi claim 2 , and Si(CF)SOLi claim 2 , and{'sub': 2', '6', '4', '6', '3', '2', '2', '2', '6', '3', '6', '2', '2', '2', '2', '3', '2', '3', '2', '2', 'X', '3', '2', '2', 'Y', '2', 'X', '3', '2', '2', 'Y', '3', '2', '2', 'Y', '2', 'Y, 'sup': −', '+', '−', '+', '−', '+', '−', '+', '−', '+', '−', '+', '−', '+', '−', '+', '−', '+', '−', '+', '−', '+, 'wherein the carboxylic acid lithium salt comprises at least one of SOCHCOOLi, CH(SONH)COOLi, CH(COOLi)CHCOOLi, CH(OH)COOLi, CH(NO)COOLi, CHC(CH)COOLi, Si(CH)(CH)C(CF)(CF)COOLi, Si(CH)C(CF)(CF)COOLi, Si(CF)(CF)COOLi, and Si(CF)COOLi (herein, x and y are integers of 1 through 10 respectively).'}5. The lithium battery binder composition of claim 1 , wherein the cellulosic polymer is a derivative selected from cellulose claim 1 , methyl cellulose claim 1 , ethyl cellulose claim 1 , ...

POLYIMIDE PRECURSOR SOLUTION, POLYIMIDE PRECURSOR, POLYIMIDE RESIN, MIXTURE SLURRY, ELECTRODE, MIXTURE SLURRY PRODUCTION METHOD, AND ELECTRODE FORMATION METHOD

The invention addresses the problem of providing a polyimide precursor, a polyimide precursor solution, and a mixture slurry, each capable of more firmly binding active material particles to a current collecting body. The polyimide precursor solution according to the invention contains a tetracarboxylic acid ester compound, a diamine compound having an anionic group, and a solvent. The solvent dissolves the tetracarboxylic acid ester compound and the diamine compound. As the tetracarboxylic acid ester compound, a 3,3′,4,4′-benzophenonetetracarboxylic acid diester is particularly preferred. Examples of the “diamine compound having an anionic group” include 3,4-diaminobenzoic acid, 3,5-diaminobenzoic acid, and m-phenylenediamine-4-sulfonic acid. Further, the mixture slurry according to the invention contains active material particles in the polyimide precursor solution. 1. A polyimide precursor solution comprising:a tetracarboxylic acid ester compound,a diamine compound having anionic groups,and a solvent that dissolves the tetracarboxylic acid ester compound and the diamine compound.2. The polyimide precursor solution as recited in claim 1 ,wherein the anionic groups are carboxyl groups.3. The polyimide precursor solution as recited in claim 2 ,wherein the diamine compound is 3,4-diaminobenzoic acid or 3,5-diaminobenzoic acid.4. The polyimide precursor solution as recited in claim 1 ,wherein the tetracarboxylic acid ester compound is 3,3′,4,4′-benzophenonetetracarboxylic acid ester.514.-. (canceled)15. The polyimide precursor solution as recited in claim 2 ,wherein the tetracarboxylic acid ester compound is 3,3′,4,4′-benzophenonetetracarboxylic acid ester.16. The polyimide precursor solution as recited in claim 3 ,wherein the tetracarboxylic acid ester compound is 3,3′,4,4′-benzophenonetetracarboxylic acid ester.17. A polyimide precursor comprising:a tetracarboxylic acid ester compound,and a diamine compound having anionic groups.18. A method for using the polyimide ...

Bimodal type anode active material and lithium secondary battery including the same

Provided is an anode active material including a compound of Chemical Formula 1 below that may realize a high-density electrode and may simultaneously improve adhesion to the electrode and high rate capability, wherein the compound of Chemical Formula 1 includes first primary particles and secondary particles, and a ratio of the first primary particles to the secondary particles is in a range of 5:95 to 50:50: Li x M y O z   [Chemical Formula 1] where M is any one independently selected from the group consisting of titanium (Ti), tin (Sn), copper (Cu), lead (Pb), antimony (Sb), zinc (Zn), iron (Fe), indium (In), aluminum (Al), and zirconium (Zr) or a mixture of two or more thereof; and x, y, and z are determined according to an oxidation number of M.

POSITIVE ACTIVE MATERIAL COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY INCLUDING THE POSITIVE ACTIVE MATERIAL COMPOSITION, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE POSITIVE ACTIVE MATERIAL COMPOSITION

A positive active material composition for a rechargeable lithium battery that includes a positive active composite material including a compound being reversibly capable of intercalating and deintercalating lithium, WO, and a binder; and an aqueous binder, a positive electrode for a rechargeable lithium battery including the positive active material composition, and a rechargeable lithium battery comprising the positive electrode including the positive active material composition. 1. A positive active material composition for a rechargeable lithium battery , comprising:{'sub': '3', 'a positive active composite material comprising a compound being reversibly capable of intercalating and deintercalating lithium; WO; and a binder; and'}an aqueous binder.2. The positive active material composition for a rechargeable lithium battery of claim 1 , wherein the binder is an organic binder.3. The positive active material composition for a rechargeable lithium battery of claim 1 , wherein the compound being reversibly capable of intercalating and deintercalating lithium is included in an amount of about 95 wt % to about 99 wt % based on the total weight of the positive active material composition.4. The positive active material composition for a rechargeable lithium battery of claim 1 , wherein the aqueous binder is included in an amount of about 1 wt % to about 5 wt % based on the total weight of the positive active material composition.5. The positive active material composition for a rechargeable lithium battery of claim 1 , wherein the WOis included in an amount of about 0.1 wt % to about 5 wt % based on 100 wt % of the compound being reversibly capable of intercalating and deintercalating lithium.6. The positive active material composition for a rechargeable lithium battery of claim 1 , wherein the WOis included in an amount of about 0.1 wt % to about 1 wt % based on 100 wt % of the compound being reversibly capable of intercalating and deintercalating lithium.7. The ...

ELECTRODE FOR ELECTRICITY STORAGE DEVICE, SLURRY FOR ELECTRODE, BINDER COMPOSITION FOR ELECTRODE, AND ELECTRICITY STORAGE DEVICE

An electrical storage device electrode includes a collector, and an active material layer that is formed on a surface of the collector, the active material layer including at least a polymer and an active material, and the active material layer having a polymer distribution coefficient of 0.6 to 1.0 and a density of 1.3 to 1.8 g/cm. 1. An electrical storage device electrode , comprising:a collector and an active material layer on a surface of the collector,wherein the active material layer is obtained by a process comprising:applying an electrode slurry to the surface of the collector, anddrying the electrode slurry,wherein the electrode slurry comprises polymer particles, active material particles, and water,a ratio of an average particle size of the active material particles to an average particle size of the polymer particles is from 20 to 100, andthe electrode slurry has a thread-forming capability of from 30 to 80%{'sup': '3', 'the active material layer has a polymer distribution coefficient of from 0.6 to 1.0 and a density of from 1.3 to 1.8 g/cm.'}2. The electrical storage device electrode according to claim 1 , wherein the active material comprises a silicon-based active material.3. (canceled)4. The electrical storage device electrode according to claim 1 , wherein the polymer particles have a particle size distribution in which polymer particles having a particle size of 0.01 or more and less than 0.25 micrometers account for from 2 to 60 vol % claim 1 , and polymer particles having a particle size of from 0.25 to 0.5 micrometers account for from 40 to 98 vol %.5. The electrical storage device electrode according to claim 1 , wherein the average particle size of the active material particles is from 1 to 200 micrometers.6. An electrode slurry claim 1 , comprising:polymer particles,active material particles, andwater,wherein a ratio of an average particle size of the active material particles to an average particle size of the polymer particles is from 20 to ...

Anode, lithium battery comprising the anode, binder composition, and method of manufacturing the electrode

An anode including; an anode active material; and a porous binder including a nanopore, wherein an anode mixture density is about 1.5 g/cc or greater, a lithium battery including the anode, a binder composition, and a method of manufacturing the electrode.

BINDER FOR ELECTRODE OF LITHIUM RECHARGEABLE BATTERY AND ELECTRODE FOR RECHARGEABLE BATTERY COMPRISING THE SAME

Provided is a binder for an electrode of a lithium rechargeable battery including a copolymer of Chemical Formula 1, which increases adhesion between the electrode and an active material by employing a copolymer based on polyacrylamide, while having excellent heat resistance and mechanical strength, an electrode for a rechargeable battery including the same, and a rechargeable battery including the electrode. The binder and electrode can improve charge and discharge cycle life characteristics of the rechargeable battery. 2. The binder of claim 1 , wherein the copolymer of Chemical Formula 1 has a weight average molecular weight in a range of 300 claim 1 ,000 to 700 claim 1 ,000.3. The binder of claim 1 , wherein a ratio of y to z is in a range of 30:70 to 70:30.4. The binder of claim 3 , wherein the copolymer of Chemical Formula 1 has a weight average molecular weight in a range of 300 claim 3 ,000 to 700 claim 3 ,000.6. The binder of claim 5 , wherein the copolymer of Chemical Formula 1 has a weight average molecular weight in a range of 300 claim 5 ,000 to 700 claim 5 ,000.7. The binder of claim 1 , wherein Ris H claim 1 , a substituted or unsubstituted C1-C10 alkylcarboxylic group claim 1 , its inorganic ion salt claim 1 , or —RNRR claim 1 , where Ris H claim 1 , a substituted or unsubstituted C1-C10 alkylene group claim 1 , or a substituted or unsubstituted C2-C20 alkenylene group; Rand Rare each independently a substituted or unsubstituted C1-C10 alkyl group claim 1 , or a substituted or unsubstituted C1-C10 alkenyl group claim 1 , or a C5-C20 aryl group; Ris H or CH; Ris a substituted or unsubstituted C1-C3 alkyl group; and X is an anionic counter ion claim 1 , such as OH claim 1 , Clor Br.8. The binder of claim 7 , wherein the copolymer of Chemical Formula 1 has a weight average molecular weight in a range of 300 claim 7 ,000 to 700 claim 7 ,000.9. The binder of claim 1 , wherein the inorganic ion salt is prepared using a hydroxide of an alkali metal.10. The ...

BINDER FOR ELECTRODE OF LITHIUM RECHARGEABLE BATTERY AND ELECTRODE FOR RECHARGEABLE BATTERY COMPRISING THE SAME

In one aspect, a binder for an electrode of a lithium rechargeable battery, which increases adhesion between the electrode and an active material by saving characteristics of two monomers by grafting an acryl group to a vinyl alcohol group, and an electrode for a rechargeable battery comprising the same are provided. The electrode can improve charge and discharge cycle life characteristics of the rechargeable battery. 2. The binder of claim 1 , wherein the binder of Chemical Formula 1 has an average molecular weight of 200 claim 1 ,000 to 500 claim 1 ,000.4. The binder of claim 3 , wherein in the copolymer of Chemical Formula 1 claim 3 , n and x are contained in a ratio of 1:2.3 to 2.3:1.5. The binder of claim 1 , wherein the binder is made by a process comprising:grafting acryl monomer to polyvinyl alcohol, where the acryl monomer is at least one monomer selected from the group consisting of methyl(meth)acrylate, butyl(meth)acrylate, ethyl acrylate, 2-ethyl hexyl acrylate, hydroxypropyl(meth)acrylate, styrene, alpha-methyl styrene and (meth)acrylonitrile; andat least one carboxylic monomer selected from the group consisting of (meth)acrylic acid, itaconic acid, furmaric acid, crotonic acid, maleic acid, monomethyl itaconate, methyl fumarate and monobutyl fumarate, which are used alone or in a combination of two or more of these materials6. The binder of claim 5 , wherein the acryl monomer is contained in an amount of 70 to 98 wt % based on the total weight of the monomers used.7. The binder of claim 5 , wherein the grafted acryl group has a glass transition temperature (Tg) in a range of 0 to 70° C.8. The binder of claim 5 , further comprising a silane grafted binder.9. The binder of claim 8 , wherein the silane grafted binder is prepared using silane having ethylenically unsaturated monomer and silane having a hydrolysis group.10. The binder of claim 9 , wherein the silane having an ethylenically unsaturated monomer is at least one selected from the group ...

BINDER FOR ELECTRODE OF LITHIUM RECHARGEABLE BATTERY AND ELECTRODE FOR RECHARGEABLE BATTERY COMPRISING THE SAME

In one aspect, a binder for an electrode of a lithium rechargeable battery, which increases adhesion between the electrode and an active material by saving characteristics of two monomers by grafting an acryl group to a vinyl alcohol group, and an electrode for a rechargeable battery comprising the same are provided. The electrode can improve charge and discharge cycle life characteristics of the rechargeable battery. 2. The binder of claim 1 , wherein the binder of Chemical Formula 1 has an average molecular weight of 200 claim 1 ,000 to 500 claim 1 ,000.3. The binder of claim 1 , wherein each Ris Chemical Formula 3:{'br': None, 'sub': 7', '7', '7', '7', 'p', '7, '—SiRR—[—O—SiRR—]—R\u2003\u2003Chemical Formula 3'}{'sub': 7', '1', '20', '2', '20', '2', '20', '6', '20', '3', '8', '1', '20, 'wherein each Ris independently H (hydrogen), OH, a substituted or unsubstituted C-Calkyl group, a C-Calkenyl group, a C-Calkynyl group, a C-Caryl group, or a C-Ccycloalkyl group, each optionally substituted with one or more components selected from the group consisting of halogen, amino, mercapto, ether, ester, C-Calkoxy, sulfone, nitro, hydroxy, cyclobutene, carbonyl, carboxyl, alkyd, urethane, vinyl, nitrile, and epoxy;'}{'sub': 4', '10, 'each Ris —OR; and'}{'sub': '10', 'each Ris a compound of Chemical Formula 3.'}4. The binder of claim 3 , wherein in the copolymer of Chemical Formula 1 claim 3 , n and x are contained in a ratio of 1:2.3 to 2.3:1.5. The binder of claim 1 , wherein the binder is made by a process comprising:grafting monomer to polyvinyl alcohol, wherein the monomer is an acryl monomer and a carboxylic monomer,where the acryl monomer is at least one selected from the group consisting of N-methylol acrylamide, methyl(meth)acrylate, butyl(meth)acrylate, ethyl acrylate, 2-ethyl hexyl acrylate, hydroxypropyl(meth)acrylate, styrene, alpha-methyl styrene and (meth)acrylonitrile; andwhere the carboxylic monomer is at least one selected from the group consisting of (meth ...

BATTERY ELECTRODE AND LITHIUM ION SECONDARY BATTERY PROVIDED WITH SAME

There are provided a battery electrode wherein an active material layer is formed on a collector surface, and the layer contains an active material and a block copolymer having a vinyl alcohol polymer block; and a lithium ion secondary battery having a laminate structure in which a pair of electrodes having an active material layer are disposed in such a manner that the active material layers face each other via a separator, and an electrolyte composition containing a lithium-containing electrolyte salt fills the gaps between the pair of electrodes and the separator, wherein at least one of the pair of electrodes is the above battery electrode. Thus, there can be provided a lithium ion secondary battery which can be easily produced and be less polarized, exhibiting excellent charge/discharge properties and cycle characteristics. 1. A battery electrode , comprising:an active material layer,wherein the active material layer is formed on a collector surface, andthe active material layer comprises an active material and a block copolymer having a vinyl alcohol polymer block.2. The battery electrode according to claim 1 ,wherein the vinyl alcohol polymer block is a polymer produced by saponifying a vinyl ester polymer andthe vinyl alcohol polymer block has a saponification degree of from 75 to 99.95 mol %.3. The battery electrode according to claim 1 ,wherein the vinyl alcohol polymer block is a polymer produced by saponifying a vinyl ester polymer andthe vinyl alcohol polymer block has a polymerization degree of from 200 to 3000.4. The battery electrode according to claim 1 ,wherein the block copolymer further comprises:a polymer block comprising a constituent unit selected from the group consisting of an acrylic acid unit, an acrylate salt unit, an acrylate ester unit, a methacrylic acid unit, a methacrylate salt unit and a methacrylate ester unit.5. The battery electrode according to claim 1 ,wherein the active material layer comprises the block copolymer in an amount ...

Li-ion battery electrodes having nanoparticles in a conductive polymer matrix

Aspects of the present disclosure are directed towards energy storage devices, and methods of manufacturing such devices. Energy storage devices, consistent with the present disclosure, include a source of lithium ions, a plurality of nanoparticles, and a conductive polymer network. The nanoparticles are encapsulated in conductive polymer shells and volumetrically change due to lithiation and delithiation due to movement of the lithium ions created by an electrical potential. The conductive polymer network bonds to the nanoparticles and accommodates volumetric changes of the plurality of nanoparticles during lithiation and delithiation.

Negative electrode active material for lithium secondary battery and lithium secondary battery comprising the same

Provided is a negative electrode active material comprising (a) a core including a carbon-based material, and (b) an organic polymer coating layer formed of a polymer compound having a content of a fluorine component of 50 wt % or more on a surface of the core.

SLURRY OBTAINED USING BINDER FOR BATTERY ELECTRODES, ELECTRODE OBTAINED USING THE SLURRY, AND LITHIUM ION SECONDARY BATTERY OBTAINED USING THE ELECTRODE

Provided is a slurry for lithium ion secondary battery electrodes, which has proper binding properties between active materials and between an active material and a current collector, an electrode using the slurry, and a lithium ion secondary battery using the electrode and having both a high initial discharge capacity and an excellent charge-discharge high-temperature cycle characteristic. The present invention relates to a slurry for lithium ion secondary battery electrodes, which is obtained using a binder for battery electrodes and an active material and has a pH of 3.0 to 6.0. Preferably, the slurry contains a binder for battery electrodes in an amount of 0.2 to 4.0% by mass based on the active material. 1. A slurry for lithium ion secondary battery electrodes , which is obtained using a binder for battery electrodes and an active material and has a pH of 3.0 to 6.0 , the acid value of the binder for battery electrodes being 5.0 to 30.0 mgKOH/g.2. The slurry for lithium ion secondary battery electrodes according to claim 1 , wherein the slurry contains the binder for battery electrodes in an amount of 0.2 to 4.0% by mass based on the active material.3. The slurry for lithium ion secondary battery electrodes according to claim 1 , wherein the binder for battery electrodes is obtained by polymerizing an ethylenically unsaturated monomer.4. The slurry for lithium ion secondary battery electrodes according to claim 3 , wherein the binder for battery electrodes is obtained by emulsion-polymerizing the ethylenically unsaturated monomer.5. The slurry for lithium ion secondary battery electrodes according to claim 3 , wherein the binder for battery electrodes is obtained by polymerizing styrene claim 3 , an ethylenically unsaturated carboxylic acid ester and an ethylenically unsaturated carboxylic acid claim 3 , and contains a crosslinker.6. (canceled)7. The slurry for lithium ion secondary battery electrodes according to claim 1 , wherein pH of the binder for battery ...

BATTERIES

A battery electrode comprising a porous polymeric material having at least a coating of an active material applied thereto. The battery electrode may be a 3-dimensional electrode. 1. A battery electrode comprising a porous polymeric material having at least a coating of an active material applied thereto.2. A battery electrode as claimed in wherein the coating comprises a conductive material.3. A battery electrode as claimed in wherein the coating comprises an active battery electrode material.4. A battery electrode as claimed in wherein the coating additionally comprises a conductive material.5. A battery electrode as claimed in any one of the preceding claims wherein the coating comprises a conductive battery electrode material.6. A battery electrode as claimed in any one of the preceding claims wherein the coating comprises a conducting material that is essentially inert as a battery material claim 2 , and an active material.7. A battery electrode as claimed in or wherein the conducting material is continuous.8. A battery electrode as claimed in any one of the preceding claims wherein the battery electrode comprises an anode or the battery electrode comprises a cathode.9. A battery electrode as claimed in any one of the preceding claims wherein the polymeric material may be partly or wholly removed after the coating has been applied to the polymeric material.10. A battery electrode as claimed in any one of the preceding claims wherein the electrode further includes a layer of backing material.11. A battery electrode as claimed in wherein the backing material comprises a layer of metal.12. A battery electrode as claimed in any one of the preceding claims wherein a coating comprising a layer of a conductive material is applied to the porous polymeric material and one or more battery electrode materials are subsequently applied to the layer of conductive material.13. A battery electrode as claimed in any one of the preceding claims wherein the coating applied to the ...

NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

A negative electrode for a rechargeable lithium battery includes an active material layer including a non-carbon-based negative active material, and a first binder having high-strength; a conductive layer including a conductive material and a second binder; and a current collector. The conductive layer is interposed between the active material layer and the current collector. 1. A negative electrode for a rechargeable lithium battery , comprising:an active material layer including a non-carbon-based negative active material, and a first binder having high-strength;a conductive layer including a conductive material and a second binder; anda current collector, andthe conductive layer interposed between the active material layer and the current collector.2. The negative electrode for a rechargeable lithium battery of claim 1 , wherein the first binder having high-strength is at least one selected from polyimide claim 1 , polyamideimide claim 1 , polysulfone claim 1 , polyphenylenesulfide claim 1 , polyetherimide claim 1 , polyethersulfone claim 1 , polyarylate claim 1 , polyetheretherketone claim 1 , modified polyimide claim 1 , and a combination thereof.3. The negative electrode for a rechargeable lithium battery of claim 1 , wherein the second binder is selected from polyvinylalcohol claim 1 , polyacrylic acid claim 1 , poly acrylamide claim 1 , carboxylmethylcellulose claim 1 , hydroxypropylcellulose claim 1 , polyvinylchloride claim 1 , carboxylated polyvinylchloride claim 1 , polyvinylfluoride claim 1 , an ethylene oxide-containing polymer claim 1 , polyvinylpyrrolidone claim 1 , polyurethane claim 1 , polytetrafluoroethylene claim 1 , polyvinylidene fluoride claim 1 , polyethylene claim 1 , polypropylene claim 1 , a styrene-butadiene rubber claim 1 , an acrylated styrene-butadiene rubber claim 1 , an epoxy resin claim 1 , nylon claim 1 , and a combination thereof.4. The negative electrode for a rechargeable lithium battery of claim 1 , wherein the conductive ...

ELECTROLYTE-NEGATIVE ELECTRODE STRUCTURE, AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME

There are provided a constitution which can suppress a decrease in the cycle performance in repetition of charging and discharging, and a lithium ion secondary battery comprising the constitution. An electrolyte-negative electrode structure () comprises: a negative electrode () in which a negative electrode active material layer () comprising a material capable of intercalating lithium ions is formed on a current collector (); and a solid electrolyte () comprising an inorganic particle having lithium ion conductivity, a polymer gel to be impregnated with an electrolyte solution, and an organic polymer acting as a binder for the inorganic particle and being capable of being impregnated with the polymer gel, wherein the negative electrode active material layer () and the solid electrolyte () are unified through the organic polymer as a medium. 1. An electrolyte-negative electrode structure used for a lithium ion secondary battery , comprising:a negative electrode in which a negative electrode active material layer comprising a material capable of intercalating lithium ions is formed on a current collector; anda solid electrolyte comprising an inorganic particle having lithium ion conductivity, a polymer gel to be impregnated with an electrolyte solution having lithium ion conductivity, and an organic polymer acting as a binder for the inorganic particle and being capable of being impregnated with the polymer gel,wherein the negative electrode active material layer and the solid electrolyte are unified through the organic polymer as a medium.2. The electrolyte-negative electrode structure according to claim 1 , wherein a volume ratio of the inorganic particle to the organic polymer is in the range of 54:46 to 91:9.3. The electrolyte-negative electrode structure according to claim 1 , wherein the inorganic particle comprises a composite metal oxide represented by a chemical formula: LiLaAZrMO(wherein A is any one metal selected from a group consisting of Y claim 1 , Nd ...

SODIUM SECONDARY BATTERY ELECTRODE AND SODIUM SECONDARY BATTERY

The present invention provides an electrode that can be used for a sodium secondary battery having a larger discharge capacity when charging and discharging are performed repeatedly than that of the prior art. This sodium secondary battery electrode contains tin (Sn) powder as an electrode active material. The electrode, particularly, further contains one or more electrode-forming agents selected from the group consisting of poly(vinylidene fluoride) (PVDF), poly(acrylic acid) (PAA), poly(sodium acrylate) (PAANa), and carboxymethylcellulose (CMC), thereby making it possible to provide a sodium secondary battery having even greater electrode performance. 1. A sodium secondary battery electrode , comprising a tin (Sn) powder as an electrode active material.2. The sodium secondary battery electrode according to claim 1 , further comprising an electrode-forming agent.3. The sodium secondary battery electrode according to claim 2 , wherein the electrode-forming agent is at least one selected from the group consisting of poly(vinylidene fluoride) (PVDF) claim 2 , poly(acrylic acid) (PAA) claim 2 , poly(sodium acrylate) (PAANa) claim 2 , and carboxymethylcellulose (CMC).4. The sodium secondary battery electrode according to claim 1 , further comprising a carbonaceous material.5. A sodium secondary battery comprising a first electrode claim 1 , a second electrode claim 1 , and an electrolyte claim 1 , wherein the first electrode is the electrode according to claim 1 , and the second electrode comprises an electrode active material selected from among a sodium metal claim 1 , a sodium alloy claim 1 , and a sodium compound capable of being doped and dedoped with a sodium ion.6. The sodium secondary battery according to claim 5 , wherein the electrode active material in the second electrode is made of an inorganic sodium compound.7. The sodium secondary battery according to claim 6 , wherein the inorganic sodium compound is an oxide represented by the following formula (A):{' ...

PRIMER FOR BATTERY ELECTRODE

Primer arrangements that facilitate electrical conduction and adhesive connection between an electroactive material and a current collector are presented. In some embodiments, primer arrangements described herein include first and second primer layers. The first primer layer may be designed to provide good adhesion to a conductive support. In one particular embodiment, the first primer layer comprises a substantially uncrosslinked polymer having hydroxyl functional groups, e.g., polyvinyl alcohol. The materials used to form the second primer layer may be chosen such that the second primer layer adheres well to both the first primer layer and an electroactive layer. In certain embodiments including combinations of first and second primer layers, one or both of the first and second primer layers comprises less than 30% by weight of a crosslinked polymeric material. A primer including only a single layer of polymeric material is also provided. 1. An electrode comprising:a conductive support;a primer layer comprising a polymeric material, wherein at least a portion of the polymeric material is non-crosslinked; andan electroactive layer in electrical communication with the primer layer, wherein the electroactive layer comprises an electroactive sulfur-containing material.2. An electrode as in claim 1 , wherein the polymeric material comprises hydroxyl functional groups.3. An electrode as in claim 1 , wherein the polymeric material is polyvinyl alcohol.4. An electrode as in claim 1 , wherein the polymeric material is polyvinyl fluoride.5. An electrode as in claim 1 , wherein the electroactive layer is different from the primer layer.6. An electrode as in claim 1 , wherein at least portions of the electroactive layer and the primer layer are formed of different materials.7. An electrode as in claim 1 , wherein at least a portion of the primer layer does not include an electroactive material.8. An electrode as in claim 1 , wherein at least a portion of the electroactive ...

Electrode binder for lithium secondary batteries, negative electrode for lithium secondary batteries using same, lithium secondary battery, automobile, method for producing electrode binder for lithium secondary batteries, and method for manufacturing lithium secondary battery

Provided are an electrode binder for lithium secondary batteries, which is suppressed in deterioration in adhesive power, strength and stretchability caused by decomposition of imide groups by hydrolysis, said imide groups being contained in a polyamide-imide that is used as a binder for an electrode active material, and which is capable of prolonging the service life of a lithium secondary battery by suppressing deterioration of an electrode even in cases where water is generated due to repeated charging and discharging; a negative electrode for lithium secondary batteries; a lithium secondary battery; a method for manufacturing a lithium secondary battery having long service life, said lithium secondary battery being suppressed in deterioration of an electrode even in cases where water is generated due to repeated charging and discharging; a method for producing an electrode binder for lithium secondary batteries; and an automobile. This electrode binder for lithium secondary batteries contains a polyamideimide and a carbodiimide. A lithium secondary battery is manufactured by forming an electrode layer using a coating liquid that contains an electrode active material, a polyamideimide, a carbodiimide and a solvent.

BINDER FOR A SECONDARY BATTERY CELL

A binder composition for inclusion in a composite material used in the formation of an electrode for inclusion in a secondary battery is provided. The binder composition comprises a metai ion sait of a carboxyiic acid of a poiymer or a copolymer, wherein the polymer or copolymer includes as a substituent one or more carboxyl comprising groups derived from a carboxyl comprising monomer unit selected from the group consisting an acrylic acid, an acrylic acid derivative, a maleic acid, a maleic acid derivative, a maleic anhydride and a maleic anhydride derivative, characterised in that 80 to 20% of the carboxyl groups are derived from an acrylic acid, an acrylic acid derivative, a maleic acid or a maleic acid derivative and 20 to 80% of the carboxyl groups are derived from maleic anhydride or a maleic anhydride derivative, but excluding lithium polyethylene-alt-maleic anhydride and lithium and sodium poly(maleic acid-co- acrylic acid). Composite electrode materials, electrode mixes, electrodes and electrochemical cells including the binder are provided. 138-. (canceled)39. A composite electrode material comprising an electroactive material and a binder , whereinthe electroactive material comprises one or more of silicon, tin, graphite, hard carbon, gallium, germanium, an electroactive ceramic material, a transition metal oxide, a chalconide, alloys or mixtures thereof; andthe binder comprises a metal ion salt of a polymer consisting (1) of monomer unit selected from acrylic acid or an acrylic acid derivative and (2) a monomer unit selected from maleic acid or a maleic acid derivative; (i) the binder consists 0 to 80% of an acrylic acid or acrylic acid derivative and 20 to 100% of a maleic acid or a maleic acid derivative;', '(ii) the metal ion is selected from one or both of sodium and potassium., 'wherein'}40. A composite electrode material according to claim 39 , wherein the degree of salt formation is in the range 40 to 80%.41. A composite electrode material ...

Nonaqueous electrolyte secondary battery

To realize high capacity of batteries, an object of the invention is to provide nonaqueous electrolyte secondary batteries which are unlikely to become swollen when charged to a high voltage and allowed to stand in a high temperature atmosphere. The nonaqueous electrolyte secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, a nonaqueous electrolyte, and a separator disposed between the positive electrode and the negative electrode. An inorganic particle layer is disposed between the positive electrode and the separator or between the negative electrode and the separator. The inorganic particle layer contains a polymer with a polyethylene glycol group. The polymer with a polyethylene glycol group has an average molecular weight of not less than 200.

Electrode for lithium secondary battery, method of manufacturing the same, and lithium secondary battery including the same

An electrode for a lithium secondary battery, the electrode including: an electrode active material; and a composite including a clay and a polymer intercalated between layers of the clay, a method of manufacturing the electrode, and a lithium secondary battery including the electrode.

COMPOSITIONS AND METHODS FOR ENERGY STORAGE DEVICES INCLUDING SALTS AND/OR FOAMS

An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode. At least one of the electrodes can include an electrode film prepared by a dry process. The electrode film, the electrode and/or the separator can comprise a salt, improved porosity, increased density, be prelithiated, and/or a foam. Process and apparatuses used for fabricating the electrode and/or electrode film are also described. 1. A dry electrode film of an energy storage device , comprising:a dry active material;a dry binder; anda dry electrolyte salt, wherein the dry electrode film is free-standing.2. The dry electrode film of claim 1 , wherein the dry electrolyte salt is selected from LiPF claim 1 , LiBF claim 1 , LiBOB claim 1 , LiN(SOCF) claim 1 , LiOSOCF claim 1 , LiNO claim 1 , a lithium acetate claim 1 , a lithium halide claim 1 , a tetra-alkylammonium tetrafluoroborate claim 1 , a tetra-alkylammonium hexafluorophosphate claim 1 , a garnet ion conductor claim 1 , a sulfur based ion conductor claim 1 , LiLaTiO(LLTO) claim 1 , LiLaZrO(LLZO) claim 1 , a Lithium Super Ionic Conductor (LISCON) claim 1 , lithium hexafluorophosphate claim 1 , lithium bis(trifluoromethanesulfonyl)imide claim 1 , lithium tetrafluoroborate claim 1 , lithium trifluoromethanesulfonate claim 1 , lithium perchlorate claim 1 , lithium bis(trifluoromethane sulfonimide (LiTFSI) claim 1 , lithium bis(oxalato)borate claim 1 , LiLaZrTaO claim 1 , LiSnPS claim 1 , LixLaTiO claim 1 , LiLaZr(PO) claim 1 , LiTiAl(PO) claim 1 , LiTiAlSi(PO) claim 1 , and LiTiZr(PO) claim 1 , and combinations thereof.3. The dry electrode film of claim 1 , wherein the dry electrolyte salt comprises 1-10 wt. % of the dry electrode film.4. The dry electrode film of claim 1 , wherein the dry electrode film has a thickness of at least 110 μm.5. The dry electrode film of claim 1 , wherein the dry electrode film has an electrode film density of at least 0.8 g/cm.6. A dry gradient electrode film of an energy ...

BUFFER INTERLAYERS IN MEMBRANELESS HIGH VOLTAGE BATTERIES

A membraneless battery comprising a cathode comprising a cathode electroactive material; an anode comprising an anode electroactive material; a catholyte in contact with the cathode, wherein the catholyte is not in contact with the anode; an anolyte in contact with the anode, wherein the anolyte is not in contact with the cathode; and one or more buffer interlayers disposed between the anolyte and the catholyte. The catholyte has a pH of less than 4, and the anolyte has a pH of greater than 10. The one or more buffer interlayers regulate a pH in the battery. The anode electroactive material comprises a Zn electroactive material. At least one of the one or more buffer interlayers comprises a weak acid and its conjugate base; and/or at least one of the one or more buffer interlayers comprises a weak base and its conjugate acid. 1. A membraneless high voltage battery comprising:a cathode comprising a cathode electroactive material;an anode comprising an anode electroactive material;a catholyte in contact with the cathode, wherein the catholyte is not in contact with the anode, and wherein the catholyte has a pH of less than 4;an anolyte in contact with the anode, wherein the anolyte is not in contact with the cathode, and wherein the anolyte has a pH of greater than 10; andone or more buffer interlayers disposed between the anolyte and the catholyte, wherein the one or more buffer interlayers regulate a pH in the battery.2. The battery of claim 1 , wherein the one or more buffer interlayers are gelled or polymerized.3. The battery of claim 1 , wherein each of the one or more buffer interlayers individually has an acidic pH value of less than 7 claim 1 , a neutral pH value of 7 claim 1 , or a basic pH value of greater than 7.4. The battery of claim 1 , wherein the one or more buffer interlayers comprise at least two buffer interlayers claim 1 , and wherein the buffer interlayers have the same or different pH values.5. The battery of claim 1 , wherein the one or more ...

BATTERY AND METHOD OF CONSTRUCTING A BATTERY

A battery and a method of constructing a battery are disclosed in which a first conductive substrate portion has a first face and a second conductive substrate portion has a second face opposed to the first face. A first electrode material is disposed in electrical contact with the first face, an electrolyte material is disposed in contact with the first electrode material, a second electrode material is disposed in contact with the electrolyte material, and a conductive tab disposed in contact with the second electrode material. The first conductive substrate portion, the first electrode material, and the conductive tab extend outward beyond a particular edge of the second conductive substrate portion. 1. A battery , comprising:a first conductive substrate portion having a first face and a second conductive substrate portion having a second face opposed to the first face;a first electrode material disposed in electrical contact with the first face;an electrolyte material disposed in contact with the first electrode material;a second electrode material disposed in contact with the electrolyte material; anda conductive tab disposed in contact with the second electrode material;wherein the first conductive substrate portion, the first electrode material, and the conductive tab extend outward beyond a particular edge of the second conductive substrate portion.2. The battery of claim 1 , wherein the first and second conductive substrate portions are integral with one another and a fold portion is disposed therebetween.3. The battery of claim 2 , wherein the electrolyte material is disposed between layers of the first electrode material.4. The battery of claim 1 , wherein the first and second conductive substrate portions are discrete elements.5. The battery of claim 1 , further including an adhesive disposed between the first and second faces for securing the first face to the second face and wherein the first electrode material is disposed in electrical contact with ...

Method for production of a coating

Processes and apparatus for production of coatings applicable particularly for manufacture of electrodes, and more particularly for the manufacture of electrodes for use in lithium-ion batteries. Coatings may be produced from thermoresponsive pastes that contain solids particles and a thermoresponsive component, the coating or layer being coated on a carrier, solidified and dried; and wherein less than 80% of a volatile solvent component is removed from the coating during solidification.

COMPOSITE PARTICLES FOR ELECTROCHEMICAL DEVICE ELECTRODE, METHOD FOR MANUFACTURING COMPOSITE PARTICLES FOR ELECTROCHEMICAL DEVICE ELECTRODE, ELECTROCHEMICAL DEVICE ELECTRODE, AND ELECTROCHEMICAL DEVICE

A negative electrode active material, a binder resin, a water-soluble polymer, and water-insoluble polysaccharide polymer fibers are included. 1. Composite particles for an electrochemical device electrode comprising:a negative electrode active material;a binder resin;a water-soluble polymer; andwater-insoluble polysaccharide polymer fibers.2. The composite particles for an electrochemical device electrode according to claim 1 , whereinthe water-insoluble polysaccharide polymer has a fiber diameter of 5 to 3000 nm.3. The composite particles for an electrochemical device electrode according to claim 1 , wherein100 parts by weight of the composite particles for an electrochemical device include 0.2 to 4 parts by weight of the water-insoluble polysaccharide polymer fibers.4. The composite particles for an electrochemical device electrode according to claim 1 , whereinthe binder resin is particulate.5. A method for manufacturing composite particles for an electrochemical device electrode to obtain the composite particles for an electrochemical device electrode according to claim 1 , comprising:a step of obtaining a slurry for composite particles by dispersing the negative electrode active material, the binder resin, the water-soluble polymer, and the water-insoluble polysaccharide polymer fibers in a solvent; anda step of granulating by spray drying the slurry for composite particles.6. An electrochemical device electrode obtained by laminating an electrode active material layer including the composite particles for an electrochemical device electrode according to on a current collector.7. The electrochemical device electrode according to claim 6 , wherein the electrode active material layer is obtained by pressure-molding an electrode material including the composite particles for an electrochemical device electrode on the current collector.8. An electrochemical device comprising the electrochemical device electrode according to . The present invention relates to ...

ANODE FOR A BATTERY CELL, METHOD FOR MANUFACTURING AN ANODE, AND BATTERY CELL

An anode for a battery cell, including an active material containing silicon, and a current collector to which the active material is applied, and an anode coating which is applied to the active material. The anode coating contains graphite and a binder. A method for manufacturing an anode, and a battery cell which includes at least one anode, are also described. 1. An anode for a battery cell , comprising:an active material containing silicon;a current collector to which the active material is applied; andan anode coating which is applied to the active material, wherein the anode coating contains graphite and a binder.2. The anode as recited in claim 1 , wherein the active material has porosity.3. The anode as recited in claim 1 , wherein the binder in the anode coating contains carboxymethylcellulose.4. The anode as recited in claim 1 , wherein the anode coating contains binder in a proportion of 5% to 10%.5. The anode as recited in claim 1 , wherein an intermediate layer is situated between the current collector and the active material.6. The anode as recited in claim 5 , wherein the intermediate layer contains carbon black and a binder.7. The anode as recited in claim 6 , wherein the binder in the intermediate layer contains carboxymethylcellulose.8. The anode as recited in claim 6 , wherein the intermediate layer contains binder material in a proportion of 5% to 10%.9. A method for manufacturing an anode claim 6 , comprising:doctoring an anode coating containing graphite and a binder, in the form of a slip layer, over an anodic active material containing silicon.10. The method as recited in claim 9 , wherein the active material is applied to a current collector with the aid of an intermediate layer containing carbon black and a binder.11. A battery cell which includes at least one anode claim 9 , the anode including an active material containing silicon claim 9 , a current collector to which the active material is applied claim 9 , and an anode coating which is ...

LITHIUM-CONDUCTING SULFUR COMPOUND CATHODE FOR LITHIUM-SULFUR BATTERIES

A lithium sulfur cell has a cathode including LiPS(0 Подробнее

METHODS FOR MAKING ANODES FOR GERMANIUM-CONTAINING LITHIUM-ION DEVICES

Methods for making anodes for lithium ion devices are provided. The methods include milling germanium powder, carbon, and boron carbide powder to form a nano-particle mixture having a particle size of 20 to 100 nm; adding an emulsion of tungsten carbide nano-particles having a particle size of 20 to 60 nm to the mixture to form an active material; and adding a polymeric binder to the active material to form the anode, wherein the weight percentage of the germanium in the anode is between 5 to 80 weight % of the total weight of the anode, the weight percentage of boron in the anode is between 2 to 20 weight % of the total weight of the anode and the weight percentage of tungsten in the anode is between 5 to 20 weight % of the total weight of the anode. 2. The method of claim 1 , wherein the active material comprises carbon at a weight percentage of between 0.5 to 5 weight % of the total weight of the anode.3. The method of claim 1 , wherein the active material further comprising silicon and a weight ratio of germanium to silicon in the active material is at least 4 to 1.4. The method of claim 1 , wherein the weight percentage of the germanium is between 60 to 75 weight % of the total weight of the anode material and the weight percentage of the boron in the anode is between 3 to 6 weight % of the total weight of the anode.5. The method of claim 1 , wherein the weight percentage of the tungsten in the anode is between 7 to 11 weight % of the total weight of the anode.6. The method of claim 1 , wherein the anode further comprises:adding one or more conductive materials, wherein the weight percentage of the conductive materials is between 5 to 10 weight % of the total weight of the anode .7. The method of claim 1 , wherein the polymeric binder is the anode is between 0.01 to 5 weight percentage of the total weight of the anode. This application is a divisional patent application of U.S. patent application Ser. No. 14/926,012, filed on Oct. 29, 2015, now allowed, which ...