Entries |
Document | Title | Date |
20080274404 | Graphite Particles and Lithium Secondary Battery Using The Same As Negative Electrode - A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m | 11-06-2008 |
20080286652 | Lithium hydride negative electrode for rechargeable lithium batteries - A lithium battery comprises a negative electrode composition that uses lithium hydride and a second metal. The negative electrode composition is activated by infusing lithium into particles of the second metal hydride to form lithium hydride and the second metal. As the battery is discharged lithium is released from the electrode and the second metal hydride formed. Charging of the battery re-infuses lithium into the negative electrode composition with the re-formation of lithium hydride. | 11-20-2008 |
20080286653 | NON-AQUEOUS ELECTROLYTE BATTERY AND PRODUCING METHOD THEREOF - A non-aqueous electrolyte battery of the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a molded body made by compression molding a granulated material containing a negative electrode active material, a conductive agent, and a binder. The negative electrode active material includes a Si-containing material. Volume-based 90% particle size R (D | 11-20-2008 |
20080299457 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery including a positive electrode including a positive electrode current collector carrying a positive electrode material mixture layer thereon, a negative electrode including a negative electrode current collector carrying a negative electrode material mixture layer thereon, a separator provided between the positive electrode and the negative electrode and a nonaqueous electrolyte solution, wherein the positive electrode current collector is a conductive body containing aluminum and the positive electrode material mixture layer includes a first material mixture layer and a second material mixture layer formed on the first material mixture layer. The first material mixture layer is made of a first material mixture containing a first organic material which is soluble or dispersible in water and the second material mixture layer is made of a second material mixture containing a second organic material which is soluble or dispersible in an organic solvent. | 12-04-2008 |
20080311471 | Non-aqueous electrolyte secondary battery and production method thereof - A method for producing a non-aqueous electrolyte secondary battery comprising the steps of: (i) mixing a positive electrode active material, a first binder A and a dispersion medium to prepare a paste A, the active material comprising a lithium-containing transition metal oxide; (ii) mixing a conductive agent, a second binder B and a dispersion medium to prepare a paste B, the conductive agent comprising carbon black; (iii) mixing the paste A and the paste B to prepare a positive electrode material paste C; (iv) applying the positive electrode material paste C onto a positive electrode core member and rolling and drying the resultant member to prepare a positive electrode; and (v) fabricating a battery using the positive electrode, a negative electrode and a non-aqueous electrolyte, wherein contact angle θ | 12-18-2008 |
20090042100 | NON-AQUEOUS ELECTROLYTE BATTERY AND NEGATIVE ELECTRODE USED THEREIN - In a negative electrode for a non-aqueous electrolyte battery, in which a negative electrode active material layer ( | 02-12-2009 |
20090053603 | Binder for Electrode of Non-Aqueous Electrolyte Secondary Battery, Electrode, and Non-Aqueous Electrolyte Secondary Battery - The present invention provides a binder for an electrode of a non-aqueous electrolyte secondary battery comprising a copolymer, wherein the copolymer contains 0.0005˜0.05 moles of group of an acid having nitrogen family element or chalcogen element or 0.0005˜0.05 moles of group of salts of the acid per 100 g of the copolymer. The binder exhibits excellent dispersion of an active material for an electrode. | 02-26-2009 |
20090061312 | Method of producing graphite-carbon composite electrodes for supercapacitors - A method of producing a composite electrode having a specific surface area of at least 100 m | 03-05-2009 |
20090061313 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCING METHOD OF ELECTRODE - A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, an electrolyte, and a porous protective film formed on either one or both surfaces of the positive and negative electrodes. The porous protective film includes a binder, fine particles, and a surfactant. | 03-05-2009 |
20090087743 | ELECTRODE, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE ELECTRODE - An electrode includes a current collector and an active material layer on top of the current collector, wherein the active material layer includes an active material and a binder, and a complex of a first conductive agent and a binding agent is formed on a surface of the active material; a method of manufacturing the same, and a lithium battery including the electrode. | 04-02-2009 |
20090111022 | ELECTRODE COMPOSITIONS AND METHODS - Provided is an electrode composition comprising an active material that includes cobalt, tin, and carbon along with methods of making and using the same. Also provided are electrodes that include the provided electrode compositions, electrochemical cells that include the provided electrodes, and battery packs that include at least one of the provided electrochemical cells. In some embodiments, the composition also includes iron. | 04-30-2009 |
20090117461 | Electrode for lithium primary and secondary (rechargeable) batteries and the method of its production - The present invention relates to a method for production of electrodes for Li-primary and Li-ion batteries based of using two types of binder. The first binder is soluble in organic solvent and second binder is insoluble in organic solvent during the process of slurry preparation. Combination of the slurry composition and conditions of the electrode temperature treatment decrease the cathode production complexity, improve electrochemical characteristics of the electrode, increase adhesion properties and flexibility of coating, and reduce the interface resistance between the current collector and electrode mass. | 05-07-2009 |
20090130558 | Optimised Positive Electrode Material for Lithium Cell Batteries, Method for the Production Thereof, Electrode, and Battery for Implementing Said Method - A material or compound is provided having a spinel structure and corresponding to the formula Li | 05-21-2009 |
20090136846 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative electrode for rechargeable lithium batteries includes a current collector, a porous active material layer having a metal-based active material disposed on the current collector, and a high-strength binder layer on the porous active material layer. The high-strength binder layer has a strength ranging from 5 to 70 MPa. The negative active material for a rechargeable lithium battery according to the present invention can improve cycle-life characteristics by suppressing volume expansion and reactions of an electrolyte at the electrode surface. | 05-28-2009 |
20090186272 | CATHODE AND LITHIUM BATTERY INCLUDING THE SAME - Provided are a cathode and a lithium battery including the cathode. The cathode includes a cathode active material that includes an oxide represented by the following Formula 1: | 07-23-2009 |
20090186273 | NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative active material for rechargeable lithium batteries and a method of manufacturing the negative active material are provided. The negative active material for rechargeable lithium batteries includes at least one generally spherical assembly having flake-shaped materials that are capable of doping and dedoping lithium, and are arranged in a generally spherical shape defining a central pore. The negative active material imparts improved cycle-life characteristics. | 07-23-2009 |
20090186274 | BATTERY - A battery including a positive electrode, a negative electrode and an electrolytic solution, wherein the negative electrode has a negative electrode active material layer containing a carbon material and a binder and having a thickness per one face of 70 μm or more and not more than 120 μm; and the binder contains a copolymer A which is obtained by copolymerizing 100 parts by weight of polyvinylidene fluoride (PVDF) and from 0 to 4 parts by weight of hexafluoropropylene (HFP) and a copolymer B which is obtained by copolymerizing 100 parts by weight of polyvinylidene fluoride and from 5 to 12 parts by weight of hexafluoropropylene in a mass content ratio of A/B of from 60/40 to 90/10. | 07-23-2009 |
20090202907 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING ELECTRODE OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery comprising a positive electrode | 08-13-2009 |
20090239147 | POLYMER COMPOSITION, PASTE FOR USE IN ELECTRODE FOR SECONDARY BATTERY, AND ELECTRODE FOR SECONDARY BATTERY - A polymer composition comprising (a) a fluorine-containing polymer and (b) a functional group-containing polymer which contains a structural unit originating from an alkyl (meth)acrylate and a structural unit originating from at least one monomer selected from the group consisting of a sulfonic acid group-containing unsaturated monomer, an amide group-containing unsaturated monomer, and a sulfonic acid group and amide group-containing unsaturated monomer is provided. | 09-24-2009 |
20090246632 | Lithium secondary battery and method of manufacturing the same - A lithium secondary battery contains a negative electrode binder containing a polyimide resin having a structure represented by the following chemical formula (1), and the polyimide resin having a molecular weight distribution such that the weight ratio of a polyimide resin having a molecular weight of less than 100,000 and a polyimide resin having a molecular weight from 100,000 to less than 200,000 is from 50:50 to 90:10: | 10-01-2009 |
20090258294 | Subfluorinated Graphite Fluorides as Electrode Materials - Subfluorinated graphite fluorides of formula CF | 10-15-2009 |
20090280409 | BINDER COMPOSITION FOR SECONDARY BATTERY ELECTRODE, SLURRY FOR SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY ELECTRODE - There is provided a binder composition for secondary battery electrode, containing
| 11-12-2009 |
20090305135 | Conductive nanocomposite-based electrodes for lithium batteries - This invention provides a nanocomposite-based lithium battery electrode comprising: (a) A porous aggregate of electrically conductive nano-filaments that are substantially interconnected, intersected, physically contacted, or chemically bonded to form a three-dimensional network of electron-conducting paths, wherein the nano-filaments have a diameter or thickness less than 1 μm (preferably less than 500 nm); and (b) Sub-micron or nanometer-scale electro-active particles that are bonded to a surface of the nano-filaments with a conductive binder material, wherein the particles comprise an electro-active material capable of absorbing and desorbing lithium ions and wherein the electro-active material content is no less than 25% by weight based on the total weight of the particles, the binder material, and the filaments. Preferably, these electro-active particles are coated with a thin carbon layer. This electrode can be an anode or a cathode. The battery featuring such an anode or cathode exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life. | 12-10-2009 |
20090311599 | Negative Electrode Active Material for Lithium Ion Rechargeable Battery and Negative Electrode Using the Same - There is provided a negative electrode for a lithium ion secondary battery high in discharge capacity per unit volume, small in capacity loss at the time of initial charge/discharge, and excellent in rapid charge/discharge characteristics. | 12-17-2009 |
20090311600 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME AND METHOD FOR FABRICATION OF NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided are a negative electrode for a nonaqueous electrolyte secondary battery, which has a current collector and a mix layer strongly adhered to each other and can increase a capacity of a nonaqueous electrolyte secondary battery, a fabrication method of the negative electrode and a nonaqueous electrolyte secondary battery including the negative electrode. | 12-17-2009 |
20090325069 | BINDER FOR ELECTRODE FORMATION, SLURRY FOR ELECTRODE FORMATION USING THE BINDER, ELECTRODE USING THE SLURRY, RECHARGEABLE BATTERY USING THE ELECTRODE, AND CAPACITOR USING THE ELECTRODE - Disclosed is a binder for electrode formation, which is obtained by dispersing a polyolefin resin containing 50 to 98% by mass of an unsaturated hydrocarbon having 3 to 6 carbon atoms and 0.5 to 20% by mass of an unsaturated carboxylic acid unit in an aqueous medium together with a basic compound. This binder for electrode formation is also characterized in that the content of a nonvolatile water-compatibilizing agent is 5 parts by mass or less per 100 parts by mass of the polyolefin resin. | 12-31-2009 |
20100009258 | Negative electrode for lithium ion secondary battery, method for producing the same, lithium ion secondary battery and method for producing the same - A negative electrode for a lithium ion secondary battery, including: a negative electrode material mixture including an active material powder capable of reversibly absorbing and desorbing lithium, and a binder, wherein the active material includes at least one element selected from the group consisting of Si and Sn, and the binder includes at least one selected from the group consisting of an ethylene-acrylic acid copolymer and an ethylene-methacrylic acid copolymer. | 01-14-2010 |
20100021817 | ELECTRODE STRUCTURE FOR LITHIUM SECONDARY BATTERY AND SECONDARY BATTERY HAVING SUCH ELECTRODE STRUCTURE - An electrode structure for a lithium secondary battery including: a main active material layer including a metal powder selected from silicon, tin and an alloy thereof that can store and discharge of lithium by electrochemical reaction, and a binder of an organic polymer; and a wherein the collector. The main active material layer includes a powder of a support material for supporting the electron conduction of the main active material layer in addition to the metal powder and the powder of the support material are particles having a spherical, pseudo-spherical or pillar shape with an average particle size of 0.3 to 1.35 times the thickness of the main active material layer. The support material is one or more selected from graphite, oxides of transition metals and metals that do not electrochemically form alloy with lithium. Organic polymer compounded with a conductive polymer is used for the binder. | 01-28-2010 |
20100047689 | Novel Silver Positive Electrode for Alkaline Storage Batteries - Silver positive electrode for alkali secondary batteries having an enhanced cycling capability, and consequently a longer lifetime in cycling of the storage batteries incorporating it, by optimizing, in recharge mode, the conditions for electrochemically reducing the oxidized silver species. The silver electrode according to the invention is of the plasticized type, and a high-porosity collector, such as a woven fabric, a felt or a reticulated cellular metal foam, is used. The active compound introduced into the collector is prepared in paste form, in which the active material consists of metallic silver particles and/or silver monoxide particles, and may advantageously include a metal oxide acting as pore-forming and wetting agent for the electrode. Such an electrode is particularly intended for mounting in silver-zinc storage batteries operating in open mode or sealed mode. | 02-25-2010 |
20100047690 | BINDER COMPOSITION, SLURRY FOR ELECTRODES, ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention aims at providing slurry for electrodes having advantageous homogeneity and stability, an electrode having advantageous homogeneous thickness and density, and further, a nonaqueous electrolyte secondary battery having small variability in battery properties. | 02-25-2010 |
20100062336 | PLASTICIZED ELECTRODE FOR AN ALKALINE BATTERY - An electrode comprising a metallic conductive support and a paste comprising an electrochemically active substance and a binder; the binder comprising at least one ethylene-vinyl acetate copolymer in a proportion by weight of at least approximately 0.25% relative to the weight of said paste, the binder comprising neither polystyrene nor butadiene copolymer. An alkaline-electrolyte battery comprising such an electrode. | 03-11-2010 |
20100068622 | Electrode Binder Compositions and Electrodes for Lithium Ion Batteries and Electric Double Layer Capacitors - An electrode binder composition comprising at least one metal chelate compound and at least one fluoropolymer. The binder composition used in a battery electrode improves the cohesion of the powdered active electrode material as well as the adhesion strength between the active material layer and the metallic current collector. The invention further relates to battery electrodes containing the binder composition for lithium ion secondary batteries and electric double layer capacitors. | 03-18-2010 |
20100104943 | Lithium Insertion Electrode Materials Based on Orthosilicates Derivatives - A lithium insertion-type positive electrode material based on an orthosilicate structure and electrical generators and variable optical transmission devices of this material are provided. | 04-29-2010 |
20100112440 | Lithium and vanadium Oxide li1+aV3O8 (0,1< a < 0,25), method for the preparation thereof - The invention relates to a lithium vanadium oxide. | 05-06-2010 |
20100112441 | BINDER FOR SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY - The present invention aims at improving binding continuity, rate property, cycle property and short circuit ratio by lowering a inner resistance of electrode in a secondary battery. | 05-06-2010 |
20100124702 | High Energy Composite Cathodes for Lithium Ion Batteries - A battery cathode includes carbon particulates, micron-sized particles of vanadium pentoxide modified with poly(pyrrole propanesulphonate), and a polymer binder. The carbon particulates and the micron-sized particles of vanadium pentoxide modified with poly(pyrrole propanesulphonate) are disposed within the polymer binder. | 05-20-2010 |
20100129712 | ENERGY STORAGE DEVICES - An energy storage device is provided. The energy storage device includes a positive electrode including a polyacrylate aqueous binder blended therewith, a negative electrode and an electrolyte. The polyacrylate aqueous binder is as shown in Formula (I): | 05-27-2010 |
20100129713 | Carbon-Coated Fluoride-Based Nanomaterials for Anode Applications - Electrodes for use in electrochemical cells are provided. The electrode may include a plurality of fluoride-based nanomaterials including calcium or magnesium, wherein a carbon-based film is deposited onto at least some of the nanomaterials. Electrochemical cells comprising the electrodes of the invention are also provided; the electrodes of the invention may act as the negative electrode of the cell. | 05-27-2010 |
20100159322 | CATHODE AND BATTERY INCLUDING SAME - A cathode and a battery including the cathode are provided. The cathode includes a cathode mixture layer with a cathode active material and a binder. The binder can include, for example, a synthetic rubber latex and a thickener, polyvinylidene fluoride denaturalized by maleic acid and/or the like. | 06-24-2010 |
20100159323 | Graphite Particles And Lithium Secondary Battery Using The Same As Negative Electrode - A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m | 06-24-2010 |
20100167125 | METHOD OF MANUFACTURING LITHIUM-ION SECONDARY BATTERY POSITIVE ELECTRODE, METHOD OF MANUFACTURING LITHIUM-ION SECONDARY BATTERY, LITHIUM-ION SECONDARY BATTERY POSITIVE ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY - A method of manufacturing a lithium-ion secondary battery positive electrode comprises a coating material preparing step of preparing a positive electrode active material layer forming coating material by mixing a positive electrode active material, a binder, a conductive auxiliary, an organic solvent, and water; and an active material layer forming step of forming a positive electrode active material layer on a current collector by using the positive electrode active material layer forming coating material. The binder is polyvinylidene fluoride produced by emulsion polymerization. The positive electrode active material layer forming coating material is prepared in the coating material preparing step such that the amount of water added (% by mass) based on the total amount of the organic solvent and water and the pH of the positive electrode active material satisfy the following expression (1): | 07-01-2010 |
20100173196 | POLYMER COMPOSITION, PASTE FOR USE IN ELECTRODE FOR SECONDARY BATTERY, AND ELECTRODE FOR SECONDARY BATTERY - A paste for a secondary battery electrode, comprising an electrode active material and a polymer composition comprising (a) a fluorine-containing polymer and (b) a functional group-containing polymer which contains a structural unit originating from an alkyl (meth)acrylate and a structural unit originating from at least one monomer selected from the group consisting of a sulfonic acid group-containing unsaturated monomer, an amide group-containing unsaturated monomer, and a sulfonic acid group and amide group-containing unsaturated monomer is provided. | 07-08-2010 |
20100178560 | Negative active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same - A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material for a rechargeable lithium battery includes lithium titanium oxide (Li | 07-15-2010 |
20100183922 | ACTIVE MATERIAL FOR BATTERY AND BATTERY HAVING THE SAME - An active material for a battery includes an electrochemically reversibly oxidizable and reducible base material selected from the group consisting of a metal, a lithium-containing alloy, a sulfur-based compound, and a compound that can reversibly form a lithium-containing compound by a reaction with lithium ions and a surface-treatment layer formed on the base material and comprising a compound of the formula MXO | 07-22-2010 |
20100233538 | Open porous electrically conductive nanocomposite material - Nanocomposits of conductive, nanoparticulate polymer and electronically active material, in particular PEDOT and LiFePO | 09-16-2010 |
20100273052 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A nonaqueous electrolyte secondary battery using electrodes including a mixture layer formed on a current collector by using an aqueous slurry is provided to enable efficient battery production, have a high adhesion strength in the electrode and enable improved battery performance. The nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte, wherein at least one of the positive and negative electrodes is an electrode obtained by: forming a precoat layer | 10-28-2010 |
20100297498 | PLASTICIZED ELECTRODE FOR AN ALKALINE SECONDARY CELL - There are provided a non-sintered positive electrode for an alkaline secondary cell comprising a current conductive support and a paste comprising an electrochemically active material and a binder comprising at least one polymer a) other than a fluorinated polymer or a thickener and containing at least one acrylate or acetate function, in a weight percentage less than or equal to 1% of the weight of the paste, at least one fluorinated polymer b), in a weight percentage of from 0.5 to 4% of the weight of the paste and at least one thickener c) in a weight percentage less than or equal to 0.3% of the weight of the paste, and a method of producing a non-sintered electrode. | 11-25-2010 |
20100323242 | ELECTRODE BINDER FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - Disclosed is an electrode binder for a secondary battery, an electrode including the electrode binder, and the secondary battery. The disclosed electrode binder for the secondary battery includes a polymer whose cohesion force with a metal (loid) electrode active material is equal to or more than 100 gf/cm, and adhesion force with an electrode current collector ranges from 0.1 gf/mm to 70 gf/mm, the metal (loid) electrode active material being capable of reversibly storing and discharging lithium, wherein the polymer includes at least one kind selected from the group including polyamide imide, polyamide, polyacrylonitrile, polyacrylic acid and polyvinyl alcohol. | 12-23-2010 |
20100330421 | CORE-SHELL HIGH CAPACITY NANOWIRES FOR BATTERY ELECTRODES - Provided are nanostructures containing electrochemically active materials, battery electrodes containing these nanostructures for use in electrochemical batteries, such as lithium ion batteries, and methods of forming the nanostructures and battery electrodes. The nanostructures include conductive cores, inner shells containing active materials, and outer shells partially coating the inner shells. The high capacity active materials having a stable capacity of at least about 1000 mAh/g can be used. Some examples include silicon, tin, and/or germanium. The outer shells may be configured to substantially prevent formation of Solid Electrolyte lnterphase (SEI) layers directly on the inner shells. The conductive cores and/or outer shells may include carbon containing materials. The nanostructures are used to form battery electrodes, in which the nanostructures that are in electronic communication with conductive substrates of the electrodes. | 12-30-2010 |
20110003203 | ELETRODE AND BATTERY HAVING THE SAME - An electrode includes: a collector; and an active material layer provided on the collector, containing a copolymer obtained by copolymerizing, as a comonomer, at least one member selected from monomers represented by the following general formulae (1) to (4) with vinylidene fluoride or vinylidene fluoride and a copolymerizable monomer thereof | 01-06-2011 |
20110008676 | ANODE FOR LITHIUM-ION CELL AND METHOD OF MAKING THE SAME - The disclosure of the present application provides various compositions, and methods for preparing the same, which may be useful, for example, to prepare one or more anodes of the present disclosure. Such anodes may be useful, for example, to prepare one or more batteries which themselves, for example, may be useful in connection with a vehicle as referenced herein. In at least one embodiment of an anode of the present disclosure, the anode comprises lithium-based compound having the formula Li | 01-13-2011 |
20110014521 | BATTERY WITH BATTERY ELECTRODE AND METHOD OF MANUFACTURING SAME - The invention provides a battery electrode capable of improving a lifespan characteristic (cycle characteristic at the time of high temperature endurance). The battery electrode has a collector and an active material layer formed on a surface of the collector. The active material layer includes a plurality of binders having different specific gravities. The binders are more present at the collector side of the active material layer. | 01-20-2011 |
20110039156 | CATHODE PLATE OF A LITHIUM ION BATTERY AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a cathode plate of a lithium ion battery. The cathode plate includes a carbon film cathode current collector and a cathode film containing cathode active material formed on the carbon film cathode current collector. The carbon film cathode current collector can remarkably improve the electrochemical performance and the safety performance of the lithium ion battery. | 02-17-2011 |
20110052985 | ELECTRODE STRUCTURE AND ELECTRIC ENERGY STORAGE DEVICE - Provided is an electrode structure having a high power density and being superior in repetitive charge/discharge efficiency and an electric energy storage device using the electrode structure. The electrode structure includes an electrode material layer including an electrode material including active material particles containing at least one of silicon, tin and alloys containing at least one of them, and a binder binding the active material particles, the binder has the following characteristics: tensile modulus: 2000 MPa or more, breaking strength: 100 MPa or more, break elongation: 20% to 120% and the ratio of breaking strength/break elongation >1.4 (MPa/%), and an average particle size of the particles is 0.5 μm or less, the electrode structure has a maximum thermal history temperature less than 350° C. and lower than the glass transition temperature of the binder. The electric energy storage device uses, as its negative electrode, the electrode structure. | 03-03-2011 |
20110081575 | ACTINIC AND ELECTRON BEAM RADIATION CURABLE ELECTRODE BINDERS AND ELECTRODES INCORPORATING SAME - A process for manufacturing an electrode utilizing electron beam (EB) or actinic radiation to cure electrode binding polymers is provided. A process is also disclosed for mixing specific actinic or EB radiation curable chemical precursors with electrode solid particles, application of the mixture to an electrode current collector, followed by the application of actinic or EB radiation to the current collector for curing the polymer, thereby binding the electrode material to the current collector. Lithium ion batteries, electric double layer capacitors, and components produced therefrom are also provided. | 04-07-2011 |
20110086268 | ELECTRODES INCLUDING POLYACRYLATE BINDERS AND METHODS OF MAKING AND USING THE SAME - Provided is an electrode composition comprising a powdered material capable of undergoing lithiation and delithiation, and a non-elastomeric binder comprising lithium polyacrylate, along with methods of making and using the same, as well as electrochemical cells incorporating the same. | 04-14-2011 |
20110091771 | COATING LIQUID, COATING LIQUID FOR MANUFACTURING ELECTRODE PLATE, UNDERCOATING AGENT, AND USE THEREOF - This invention relates to a coating formulation, a coating formulation for manufacturing an electrode plate and an undercoating formulation, and their use. These coating formulations are all characterized by containing, in a polar solvent, a hydroxyl-containing resin and an organic acid and/or a derivative thereof. The hydroxyl-containing resin is at least one of (1) a polyvinyl acetal resin, (2) an ethylene-vinyl alcohol copolymer, (3) a modified and/or unmodified polyvinyl alcohol, and (4) a cyanoethyl-containing polymer. According to the present invention, there is provided a coating formulation capable of forming a coating of excellent adhesion and solvent resistance on a surface of a metal material such as an aluminum material. Also provided are a coating formulation for manufacturing an electrode plate for a battery or a polarizable electrode plate for a capacitor, in which an active material layer has excellent adhesion to a collector made of an aluminum foil, copper foil or the like and is also equipped with excellent electrolyte resistance and improved contact resistance to the collector, an undercoating formulation, the electrode plate and its manufacturing process, the battery, and the capacitor. | 04-21-2011 |
20110111294 | High Capacity Anode Materials for Lithium Ion Batteries - High capacity silicon based anode active materials are described for lithium ion batteries. These materials are shown to be effective in combination with high capacity lithium rich cathode active materials. Supplemental lithium is shown to improve the cycling performance and reduce irreversible capacity loss for at least certain silicon based active materials. In particular silicon based active materials can be formed in composites with electrically conductive coatings, such as pyrolytic carbon coatings or metal coatings, and composites can also be formed with other electrically conductive carbon components, such as carbon nanofibers and carbon nanoparticles. Additional alloys with silicon are explored. | 05-12-2011 |
20110111295 | ANODE COMPOSITE FOR NONAQUEOUS ELECTROLYTE SECONDARY CELL - To provide an anode composite for a nonaqueous electrolyte secondary cell, whereby the properties of the material constituting an electrode can be fully obtained. | 05-12-2011 |
20110117431 | LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A lithium secondary battery including an electrode assembly and a non-aqueous electrolyte impregnated in the electrode assembly, the electrode assembly containing a positive electrode, a negative electrode having a negative electrode current collector and a negative electrode mixture layer formed on the negative electrode current collector, the negative electrode mixture layer containing a binder and negative electrode active material particles, the negative electrode active material particles containing at least one of silicon and a silicon alloy, and a separator interposed between the negative electrode and the positive electrode. The binder contains a polyimide resin having a branch structure formed by imidizing a polyvalent amine having a valency of 3 or more and a tetracarboxylic dianhydride. | 05-19-2011 |
20110123864 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD FOR MANUFACTURING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A positive electrode for a rechargeable lithium battery including a net-type current collector and a positive active material layer formed on both sides of the current collector and also including a positive active material and a binder and having a thickness of about 150 μm or more, a method of manufacturing the same, and a rechargeable lithium battery including the same. | 05-26-2011 |
20110129731 | ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY - Disclosed is an electrode for a lithium-ion secondary battery in which a porous membrane containing an oxide particle having a particle size of 5 nm or more to 100 nm or less is layered on an electrode active material layer; a slurry for a porous membrane comprising an oxide particle having a particle size of 5 nm or more to 100 nm or less, a polymer having a glass-transition temperature of 15° C. or less and a solvent; and a lithium-ion secondary battery comprising a positive electrode, a negative electrode and an electrolyte solution in which at least one of the positive electrode and negative electrode is the electrode of the present invention. The purpose is to provide a porous membrane able to contribute to reduction of an attached matter to a roll when being wound up due to improved retention of inorganic filler on the surface part of the porous membrane for a porous protective membrane provided on the surface of an electrode used for a secondary battery and the like. | 06-02-2011 |
20110136009 | RECHARGEABLE BATTERY USING AN AQUEOUS BINDER - A battery includes a positive electrode mix having a positive electrode active material, a water soluble binder including a poly (acrylonitrile-co-acrylamide) polymer and water, and a conductive additive. The battery also includes a negative electrode mix having a negative electrode active material, a water soluble binder including a poly (acrylonitrile-co-acrylamide) polymer and water, and a conductive additive or additives. The battery also includes an electrolyte. | 06-09-2011 |
20110136010 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A nonaqueous electrolyte secondary battery includes: a positive electrode 4 including a positive electrode current collector and a positive electrode material mixture layer containing a positive electrode active material and a binder and provided on the positive electrode current collector; a negative electrode 5; a porous insulating layer 6 interposed between the positive electrode 4 and the negative electrode 5; and a nonaqueous electrolyte. The positive electrode 4 has a tensile extension percentage of 3.0% or more. The binder is made of copolymer containing vinylidene fluoride and hexafluoropropylene. | 06-09-2011 |
20110143198 | BINDER AND POSITIVE ACTIVE MATERIAL COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A rechargeable lithium battery includes a binder for a rechargeable lithium battery, and a positive active material composition. The binder for the rechargeable lithium battery includes a nitrile-based polymer nanoparticle and a fluorine-containing polymer nanoparticle. | 06-16-2011 |
20110143199 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A nonaqueous electrolyte secondary battery includes: a positive electrode 4 including a positive electrode current collector and a positive electrode material mixture layer containing a positive electrode active material and a binder and provided on the positive electrode current collector; a negative electrode 5; a porous insulating layer 6 interposed between the positive electrode 4 and the negative electrode 5; and a nonaqueous electrolyte. The positive electrode 4 has a tensile extension percentage of 3.0% or more. The binder is made of polyvinylidene fluoride. The positive electrode current collector has a softening temperature lower than a crystalline melting point of the binder. | 06-16-2011 |
20110159363 | COMPOSITION FOR ELECTRODE OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A composition for an electrode of a nonaqueous electrolyte secondary battery contains an active material and a binder resin. The composition contains a vinylpyrrolidone-based polymer as the binder resin. The hydroxyl group equivalent of the vinylpyrrolidone-based polymer is within the range of 250 to 2500. | 06-30-2011 |
20110159364 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery has an electrode composed of a positive and negative electrodes containing an active material, and a separator between the positive electrode and the negative electrode; wherein one of the positive electrode and the negative electrode contains a binder and is formed on a current collector; the current collector has a structure composed of a resin layer so as to melt upon an abnormal heat generation and a metal layer as an electric conductor formed on both sides of the resin layer; the resin layer has a melting point of 120 to 250° C.; and the binder has a melting point between 70° C. and a lower temperature than above mentioned melting point of the resin layer by 40° C. | 06-30-2011 |
20110165459 | LITHIUM ION BATTERY - In a lithium ion battery, one or more chelating agents may be attached to a microporous polymer separator for placement between a negative electrode and a positive electrode or to a polymer binder material used to construct the negative electrode, the positive electrode, or both. The chelating agents may comprise, for example, at least one of a crown ether, a podand, a lariat ether, a calixarene, a calixcrown, or mixtures thereof. The chelating agents can help improve the useful life of the lithium ion battery by complexing with unwanted metal cations that may become present in the battery's electrolyte solution while, at the same time, not significantly interfering with the movement of lithium ions between the negative and positive electrodes. | 07-07-2011 |
20110171526 | BINDER COMPOSITION FOR SECONDARY BATTERY ELECTRODE AND METHOD FOR PRODUCING SAME - A binder composition for secondary batteries having excellent stability over time is produced. A method for producing a binder composition for secondary batteries containing at least a polymer and a dispersion medium, which comprises a metal particulate removal step wherein metal particulates contained in a polymer dispersion containing a polymer and a dispersion medium are removed. A binder composition for secondary batteries, which is obtained by the above-mentioned production method and has a metal particulate content of not more than 10 ppm, said metal particulate content is composed of particles formed from a transition metal component and having a particle diameter of not less than 20 μm. A slurry for secondary battery electrodes, which contains the binder composition for secondary batteries and an electrode active material. A secondary battery electrode wherein an electrode active material layer containing the binder composition for secondary batteries and a positive electrode active material or a negative electrode active material is adhered to a collector. A secondary battery comprising the secondary battery electrode. | 07-14-2011 |
20110177390 | Negative Electrode Mixture for Nonaqueous Electrolyte Secondary Batteries, Negative Electrode for Nonaqueous Electrolyte Secondary Batteries, and Nonaqueous Electrolyte Secondary Battery - A negative electrode mixture for nonaqueous electrolyte secondary batteries that can form a mixture layer showing excellent peel strength with a collector in the manufacturing of negative electrodes for nonaqueous electrolyte secondary batteries is provided. The negative electrode mixture for nonaqueous electrolyte secondary batteries includes at least one inorganic substance selected from hydrogen chloride, hydrogen bromide, sulfuric acid and inorganic salts represented by Formula (A) below, an electrode active material, a polar group-containing vinylidene fluoride polymer and an organic solvent, the inorganic substance being contained at 10 to 500 ppm based on 100 wt % of the electrode active material; MX . . . (A), wherein M is an alkali metal, and X is Cl or Br. | 07-21-2011 |
20110183203 | Polymer supported electrodes - Methods and devices arising from the practice thereof for making and using battery electrodes formed onto ion permeable, electrically non-conductive substrates, preferably battery separators are disclosed herein. Electrodes are formed onto substrates using a variety of methods including, but not limited to, spray coating and electrophoretic deposition. Electrically conductive layers may be applied to the electrode coating layer side opposite or adjacent to the substrate to act as current collectors for the battery. Multilayer devices having alternating layers of conductive layers, electrode layers and substrates, wherein the conductive layers may be in electrical communication with other conductive layers to form a battery. | 07-28-2011 |
20110183204 | Polymer materials as binder for a CFx cathode - Lithium anode based battery systems can use polymeric binding materials to act as particulate binders for fluorinated carbon based electrodes. The binders mechanically hold electrochemically active particles together, while inhibiting lithium fluoride crystallization that generates unwanted heat release in a discharging battery. Polymeric binders that include positively-charged groups, negatively-charged groups, electron deficient π-anion receptor groups, or boronate-based fluoride receptor group can be used alone or in combination. | 07-28-2011 |
20110189541 | SECONDARY LITHIUM BATTERY - It is an object to provide a cathode for a secondary lithium battery in which adhesiveness and flexibility thereof are simultaneously achieved and the thickness thereof is made large, and the secondary lithium ion battery that has a large capacity and is excellent in safety and cycle life using the cathode. | 08-04-2011 |
20110189542 | Graphite Particles And Lithium Secondary Battery Using The Same As Negative Electrode - A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m | 08-04-2011 |
20110206986 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative active material for a rechargeable lithium battery including a flake powder including a plurality of flakes, each flake including a plurality of silicon atoms and a plurality of oxygen atoms, wherein an oxygen atom amount for each flake ranges from 5 wt % to 38 wt % based on a total amount of silicon atoms and oxygen atoms, each flake having a thickness ranging from 30 nm to 500 nm and a ratio of an average longest dimension to the thickness ranging from 10 to 100. | 08-25-2011 |
20110212364 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE POSITIVE ELECTRODE AND METHOD OF MANUFACTURING THE SAME - A positive electrode for a non-aqueous electrolyte secondary battery, having a positive electrode current collector and a positive electrode active material layer formed on the positive electrode current collector and containing LiCoO | 09-01-2011 |
20110229760 | CARBOXYMETHYLCELLULOSE OR SALT THEREOF FOR ELECTRODES OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND AQUEOUS SOLUTION THEREOF - The present invention provides carboxymethylcellulose or a salt thereof that can prevent defects such as streaks and pinholes from occurring in the obtained electrode when it is used as a binder for an electrode of a nonaqueous electrolyte secondary battery. | 09-22-2011 |
20110244326 | ELECTRODE FOR SECONDARY BATTERY AND MANUFACTURING PROCESS FOR THE SAME - It is an assignment to be solved to provide an electrode for secondary battery, electrode in which the active material is suppressed from coming off or falling down from the electricity collector, and that has excellent cyclic performance. | 10-06-2011 |
20110262811 | ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION METHOD THEREOF, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a non-aqueous electrolyte secondary battery having excellent input/output characteristics and excellent adherence between its electrode material mixture layer and current collector. Disclosed is an electrode for a non-aqueous electrolyte secondary battery, having a current collector and an electrode material mixture layer attached to a surface of the current collector, in which the electrode material mixture layer includes a metal oxide-containing electrode active material and a binder; the oil absorption capacity of the electrode active material is 25 g or more and 200 g or less, per 100 g of the electrode active material; and when the thickness of the electrode material mixture layer is designated as T, an amount W | 10-27-2011 |
20110269017 | POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES AND USE THEREOF - The invention provides a positive electrode for lithium secondary batteries, comprising a conductive layer overlaid on the surface of a positive electrode collector, and an active material layer overlaid on the conductive layer, wherein the conductive layer comprises at least one water-insoluble polymer, as a binder, that is soluble in organic solvents, and a conductive material; the active material layer comprises at least one aqueous polymer, as a binder, that is soluble or dispersible in water, a positive electrode active material, and a conductive material; and the average particle size (D | 11-03-2011 |
20110269018 | ELECTRODE FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE USING THE SAME - An electrode for an electrochemical device of the present invention includes an electrode mixture layer that includes a lithium-containing composite oxide expressed by the general composition formula (1): Li | 11-03-2011 |
20110274971 | POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND PRODUCTION METHOD OF SAME - A positive electrode for a lithium secondary battery provided by the present invention includes an electrically conductive layer and an active material layer on a surface of a positive electrode current collector. The electrically conductive layer contains at least one type of water-insoluble polymer that is soluble in an organic solvent as a binder, the active material layer contains at least one type of water-soluble and/or water-dispersible polymer that dissolves or disperses in water as a binder, and a mass ratio (B/A) of mass (B) per unit surface area of the binder in the active material layer to mass (A) per unit surface area of the binder in the electrically conductive layer satisfies a relationship of 0.06≦B/A≦0.35. | 11-10-2011 |
20110305951 | BINDER RESIN PRECURSOR SOLUTION COMPOSITION FOR ELECTRODE - A binder resin precursor solution composition for electrode containing at least (A) a polyamic acid having repeating units represented by chemical formulae (1) and (2) in a (1) to (2) molar ratio of 2:8 to 8.5:1.5 and having a tetracarboxylic acid component to diamine component molar ratio of 0.94 to 0.99, (B) a carboxylic acid compound having two pairs of carboxyl groups in the molecule thereof or an ester thereof, and (C) a solvent. | 12-15-2011 |
20110311870 | Electrode for lithium-ion secondary battery - Disclosed is an electrode for a lithium-ion secondary battery which includes a porous membrane layer that is inhibited from decreasing in flexibility. The electrode for lithium-ion secondary battery comprises a current collector and, formed thereon in the following order, an electrode active-material layer comprising an electrode active material, a thickener, and a binder and a porous membrane layer containing an inorganic filler, wherein the binder is one which, when used to form a composite film comprising the binder and the thickener, forms a spherical island phase in a cross section of the composite film, the island phase having an average diameter of 0.5 μm or larger. The binder preferably is an unsaturated carboxylic acid ester polymer having a content of alkyl acrylate monomer units of 85 mass % or higher. | 12-22-2011 |
20110311871 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY - A negative electrode for lithium secondary batteries includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is formed on the negative electrode current collector. The negative electrode active material layer contains a binder and negative electrode active material particles containing at least one of silicon and a silicon alloy. The binder is a polyimide resin formed by imidization of a tetracarboxylic acid or tetracarboxylic anhydride and a diamine. The diamine contains a diamine having at least one hydroxyl group. | 12-22-2011 |
20110318638 | POSITIVE ELECTRODE MIXTURE SLURRY FOR LITHIUM SECONDARY BATTERIES, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY THAT USE SAID SLURRY - The invention provides a stable positive-electrode mixture slurry that is not subject to gelation, a positive electrode with abundant flexibility, and a lithium secondary battery with excellent battery characteristics. The slurry comprises a positive-electrode active material, a binder, and an organic solvent, the positive-electrode active material is a lithium-containing complex metal oxide represented by Formula: Li | 12-29-2011 |
20120003533 | METAL OXIDE NEGATIVE ELECTRODES FOR LITHIUM-ION ELECTROCHEMICAL CELLS AND BATTERIES - Provided are negative electrode compositions for lithium-ion electrochemical cells that include metal oxides and polymeric binders. Also provided are electrochemical cells and battery packs that include electrodes made with these compositions. | 01-05-2012 |
20120015246 | WATERBORNE FLUOROPOLYMER COMPOSITION - This invention relates to a waterborne fluoropolymer composition useful for the fabrication of Li-Ion-Battery (LIE) electrodes. The fluoropolymer composition contains an organic carbonate compound, which is more environmentally friendly than other fugitive adhesion promoters currently used in waterborne fluoropolymer binders. An especially useful organic carbonate compound is ethylene carbonate (EC) and vinylene carbonate (VC), which are solids at room temperature, and other carbonates which are liquid at room temperature such as propylene carbonate, methyl carbonate and ethyl carbonate. The composition of the invention is low cost, environmentally friendly, safer, and has enhanced performance compared to current compositions. | 01-19-2012 |
20120034523 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative active material may include a metal oxide in an amount of about 20 wt % or more, and has a specific surface area of about 500 m | 02-09-2012 |
20120040246 | Fiber Electrode for Lithium Secondary Battery, Fabrication Method Therefor, and Lithium Secondary Battery Including Fiber Electrode - Provided is a method for mass manufacturing, at low cost, of a fiber positive electrode for a lithium secondary battery, which has excellent charge/discharge cycle characteristics, and which is capable of charging/discharging with high current density, and a main active material of which is a lithium-doped transition metal oxide. The method includes the steps of: (a) forming a tubular coating of either a transition metal oxide or a transition metal hydroxide on a carbon fiber current collector; and (b) performing, in a lithium ion containing solution in a sealed system under presence of an oxidant or a reductant, heat treatment at 100 to 250° C. on the carbon fiber current collector, on which the tubular coating of either the transition metal oxide or the transition metal hydroxide is formed, to obtain a coating of a lithium-doped transition metal oxide on the carbon fiber current collector. Further provided are: a fiber negative electrode for a lithium secondary battery, which has high current density, high energy density, and excellent charge/discharge cycle characteristics, and which can be fabricated in a relatively easy manner; and a method for fabricating the fiber negative electrode. The fiber negative electrode for a lithium secondary battery includes: (c) a carbon fiber current collector; (d) an outer layer which is a tubular composite layer of a Sn oxide and M | 02-16-2012 |
20120064407 | POLYMER ACIDS AS PH-REDUCING BINDER OR AGENT FOR AQUEOUS LITHIUM-ION BATTERIES - A positive electrode includes positive active material, conductive additive, water soluble polymer, water coated on the current collector. The slurry includes an active material, a water soluble binder, water, and a carboxylic acid-containing polymer sufficient to reduce the pH of the liquid slurry to a level below about 11.8. A method of forming an electrode is also disclosed. | 03-15-2012 |
20120070737 | BINDER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, AND ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed are a binder composition for a rechargeable lithium battery including a cross-linked compound of polyacrylic acid substituted with an alkali cation and polyvinyl alcohol and an electrode and rechargeable lithium battery including the same. The cross-linked compound of polyacrylic acid and polyvinyl alcohol is obtained by heating polyacrylic acid and polyvinyl alcohol to effect a cross-linking reaction via esterification. The cross-linked compound of polyvinyl alcohol and polyacrylic acid substituted with an alkali cation may improve phase stability of a binder, and has high cross-linking ratio, thereby providing for excellent performance of a rechargeable lithium battery. | 03-22-2012 |
20120088155 | ALGINATE-CONTAINING COMPOSITIONS FOR USE IN BATTERY APPLICATIONS - A silicon-based anode comprises an alginate-containing binder. The many carboxy groups of alginate bind to a surface of silicon, creating strong, rigid hydrogen bonds that withstand battery cycling. The alginate-containing binder provides good performance to the anode by (1) improving the capacity of the anode in comparison to other commercially-available binders, (2) improving Columbonic efficiency during charging and discharging cycles, and (3) improving stability during charging and discharging cycles. | 04-12-2012 |
20120094178 | COMPOSITION FOR A SECONDARY BATTERY CELL - Composite electrode material for a rechargeable battery cell includes an electroactive material; and a polymeric binder including pendant carboxyl groups, characterised in that (i) the electroactive material includes one or more components selected from the group including 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 the range 300,000 to 3,000,000 and (iii) 50 to 90% of the carboxyl groups of the polymeric binder are in the form of a metal ion carboxylate salt. A method of making a composite electrode material, an electrode, cells including electrodes and devices using such cells are also disclosed. | 04-19-2012 |
20120094179 | NEGATIVE ELECTRODE ACTIVE MATERIAL OF LITHIUM SECONDARY BATTERY, NEGATIVE ELECTRODE OF LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY FOR VEHICLE INSTALLATION USING THE NEGATIVE ELECTRODE ACTIVE MATERIAL AND NEGATIVE ELECTRODE, AND METHOD FOR MANUFACTURING THE NEGATIVE ELECTRODE ACTIVE MATERIAL - A negative electrode active material of lithium secondary battery include: at least one of a petroleum-derived green coke and a coal-derived green coke, and at least one of a petroleum-derived calcined coke and a coal-derived calcined coke within a mass ratio range of 90:10 to 10:90; a phosphorous compound within a range of 0.1 to 6.0 parts by mass in amount equivalent to phosphor relative to 100 parts by mass of the at least one of the green cokes and the at least one of the calcined cokes; and a boron compound within a range of 0.1 to 6.0 parts by mass in amount equivalent to boron relative to 100 parts by mass of the at least one of the green cokes and the at least one of the calcined cokes. | 04-19-2012 |
20120107687 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed is a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode includes a current collector; and a positive active material layer disposed on the current collector and including a lithium vanadium oxide-based positive active material represented by the following Chemical Formula 1. | 05-03-2012 |
20120107688 | BINDER FOR LITHIUM ION RECHARGEABLE BATTERY CELLS - An electrode for a rechargeable battery cell includes a substrate, e.g., a current collector and a particulate silicon forming active material in the electrode, along with a cellulose based binder. At least one chelating agent is provided, the chelating agent being capable of binding to the metallic impurities, e.g., divalent and/or trivalent impurities. The binder is mixed with the silicon particles to form a cohesive mass that adheres to the substrate. It has been found that cellulose based binders can also be used in cells where the active material is silicon if a chelating agent is also incorporated. The electrode can be used in a lithium ion rechargeable battery cell. | 05-03-2012 |
20120107689 | BINDER COMPOSITION FOR ELECTRODE - The present invention provides a binder composition for an electrode. The binder composition includes PTFE particles as primary particles uniformly dispersed in an organic solvent at a high concentration. The present invention relates to a binder composition for an electrode, comprising an organosol composition containing PTFE particles (A), a polymer (B), and a fluorine-free organic solvent (C); and no electrode active material (J), wherein the polymer (B) is soluble in the fluorine-free organic solvent (C). | 05-03-2012 |
20120107690 | 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. | 05-03-2012 |
20120129048 | 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. | 05-24-2012 |
20120135308 | BINDER FOR LITHIUM ION RECHARGEABLE BATTERY CELLS - An electrode for lithium ion recharged battery cell includes current collectors, a cathode layer, a separator and a cohesive anode mass. The cohesive anode mass includes silicon as an active material and a polymeric binder. The polymeric binder is a homo-polymer or copolymer of one or more monomers selected from the group consisting of acrylic acid, 3-butenoic acid, 2-methacrylic acid, 2-pentenoic acid, 2,3-dimethylacrylic acid, 3,3-dymethylacrylic acid, trans-butenedioc acid, cis-butenedioc acid and itaconic acid and optionally an alkali metal salt thereof. The silicon can include 20 to 100% of the active material in the cohesive mass. The binder is mixed with the silicon to form the cohesive mass that adheres to the current collector and maintains the cohesive mass in electrical contact with the current collector. | 05-31-2012 |
20120164531 | ENERGY STORAGE COMPOSITE PARTICLE, BATTERY NEGATIVE ELECTRODE MATERIAL AND BATTERY - An energy storage composite particle is provided, which includes a carbon film, a conductive carbon component, an energy storage grain, and a conductive carbon fiber. The carbon film surrounds a space. The conductive carbon component and the energy storage grain are disposed in the space. The conductive carbon fiber is electrically connected to the conductive carbon component, the energy storage grain, and the carbon film, and the conductive carbon fiber extends from the inside of the space to the outside of the space. The energy storage composite particle has a high gravimetric capacity, a high coulomb efficiency, and a long cycle life. Furthermore, a battery negative electrode material and a battery using the energy storage composite particle are also provided. | 06-28-2012 |
20120196184 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a nonaqueous electrolyte secondary battery in which a negative-electrode active material containing a graphite material and silicon or a silicon compound is used and which has an excellent charge-discharge cycle characteristic. In the nonaqueous electrolyte secondary battery, the negative-electrode active material used is an active material containing a graphite material and silicon or a silicon compound, and the negative electrode binder used comprises a polyimide and polyvinylpyrrolidone. | 08-02-2012 |
20120202118 | LITHIUM PRIMARY BATTERY - A lithium primary battery including: a positive electrode 1 using iron disulfide as a positive electrode active material, wherein the positive electrode 1 includes a positive electrode mixture containing the positive electrode active material and a conductive agent, and a positive electrode core which is made of a porous metal member, and is filled with the positive electrode mixture, the iron disulfide has an average particle size of 20-50 μm, the conductive agent has a specific surface area of 300 m | 08-09-2012 |
20120231336 | ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - An electrode for a rechargeable lithium battery includes an electrode active material and a copolymer represented by | 09-13-2012 |
20120231337 | 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. | 09-13-2012 |
20120237826 | AQUEOUS ACTIVE MATERIAL COMPOSITION, ELECTRODE, AND RECHARGEABLE LITHIUM BATTERY USING THE SAME - An aqueous active material composition, an electrode, and a rechargeable lithium battery including the same, the aqueous active material composition including an active material; a binder; and a water-soluble cellulose mixture, wherein the water-soluble cellulose mixture includes a first cellulose compound having a degree of substitution of about 0.5 to about 0.9 and a second cellulose compound having a degree of substitution of about 1.1 to about 1.5. | 09-20-2012 |
20120244439 | LITHIUM TITANATE, NEGATIVE ELECTRODE INCLUDING THE LITHIUM TITANATE, AND SECONDARY LITHIUM BATTERY CONTAINING THE ELECTRODE - A negative electrode for a lithium secondary battery that includes, as a negative active material, a lithium titanate (Li | 09-27-2012 |
20120244440 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery, which includes: a negative electrode including a silicon-based negative active material; a positive electrode (including a positive active material capable of intercalating and deintercalating lithium, and a conductive material including a fiber shaped material and a non-fiber shaped material), wherein a weight per unit area of the positive electrode (which is a loading level (LL) of the positive electrode) is about 20 mg/cm | 09-27-2012 |
20120251881 | Galvanic Element - A galvanic element, for example a battery or an accumulator, in particular a lithium-ion cell, includes a negative electrode, a positive electrode, and a separator lying between the negative electrode and the positive electrode. In order to increase the specific capacitance, the negative electrode includes at least one layer system, said layer system including at least two graphene layers and at least one polymer layer. A polymer layer lies between two graphene layers. | 10-04-2012 |
20120276451 | METHOD FOR PREPARING AN ELECTRODE COMPOSITION - A method for preparing an electrode composition, including a step of forming a suspension, in an unbuffered aqueous acid medium having a pH of 1 or in a buffered acid medium having a pH less than or equal to 4, containing an electrode active material in the form of particles of an element M selected from Si, Sn, and Ge, a polymer binder having reactive groups capable of reacting with hydroxyl groups in an acid medium, and an agent generating electronic conductivity. The invention also relates to the electrode obtained according to the method, as well as to a battery including such an electrode. | 11-01-2012 |
20120308889 | NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a negative electrode including a shape memory polymer represented by the following Chemical Formula 1 and having a weight average molecular weight ranging from 5,000 to 300,000 and a rechargeable lithium battery including the negative electrode: | 12-06-2012 |
20120315542 | ELECTRODE COATED WITH METAL DOPED CARBON FILM - Disclosed is an electrode coated with a metal-doped carbon film. | 12-13-2012 |
20120315543 | COIN-TYPE LITHIUM SECONDARY BATTERY - A coin-type lithium secondary battery includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode active material including a silicon alloy material, a conductive agent including a carbon material, and a binder. The silicon alloy material includes a phase A including a lithium-silicon alloy and a phase B including an intermetallic compound of a transition metal element and silicon. In the lithium-silicon alloy, a ratio of lithium atoms relative to silicon atoms is 2.75 to 3.65 in a 100% state-of-charge. | 12-13-2012 |
20130022868 | TRANSPARENT ELECTROCHEMICAL ENERGY STORAGE DEVICES - A transparent electrochemical energy storage device includes a pair of electrodes and an electrolyte disposed between the electrodes. Each of the electrodes includes a substrate and a set of electrode materials that are arranged across the substrate in a pattern with a feature dimension no greater than 200 μm and occupying an areal fraction in the range of 5% to 70%. | 01-24-2013 |
20130040198 | Lithium Batteries Containing Lithium-Bearing Iron Phosphate and Carbon - The invention relates to lithium-bearing iron phosphate in the form of micrometric mixed aggregates of nanometric particles, to an electrode and cell resulting therefrom and to the method for manufacturing same, which is characterized by a nanomilling step. | 02-14-2013 |
20130045419 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, NEGATIVE ELECTRODE INCLUDING THE SAME AND METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Provided are a negative active material for a rechargeable lithium battery, which includes a first silicon oxide (SiO | 02-21-2013 |
20130045420 | ANODE BATTERY MATERIALS AND METHODS OF MAKING THE SAME - In some embodiments, the present invention provides novel methods of preparing porous silicon films and particles for lithium ion batteries. In some embodiments, such methods generally include: (1) etching a silicon material by exposure of the silicon material to a constant current density in a solution to produce a porous silicon film over a substrate; and (2) separating the porous silicon film from the substrate by gradually increasing the electric current density in sequential increments. In some embodiments, the methods of the present invention may also include a step of associating the porous silicon film with a binding material. In some embodiments, the methods of the present invention may also include a step of splitting the porous silicon film to form porous silicon particles. Additional embodiments of the present invention pertain to anode materials derived from the porous silicon films and porous silicon particles. | 02-21-2013 |
20130071743 | METHOD OF MANUFACTURING LITHIUM-ION SECONDARY BATTERY POSITIVE ELECTRODE, METHOD OF MANUFACTURING LITHIUM-ION SECONDARY BATTERY, LITHIUM-ION SECONDARY BATTERY POSITIVE ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY - A method of manufacturing a lithium-ion secondary battery positive electrode comprises a coating material preparing step of preparing a positive electrode active material layer forming coating material by mixing a positive electrode active material, a binder, a conductive auxiliary, an organic solvent, and water; and an active material layer forming step of forming a positive electrode active material layer on a current collector by using the positive electrode active material layer forming coating material. The binder is polyvinylidene fluoride produced by emulsion polymerization. The positive electrode active material layer forming coating material is prepared in the coating material preparing step such that the amount of water added (% by mass) based on the total amount of the organic solvent and water and the pH of the positive electrode active material satisfy the following expression (1): | 03-21-2013 |
20130084498 | 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, | 04-04-2013 |
20130101898 | 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. | 04-25-2013 |
20130108923 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME | 05-02-2013 |
20130164618 | NON-AQUEOUS SECONDARY BATTERY - A negative electrode active material of a non-aqueous secondary battery of the present invention includes a first active material, a second active material, and a third active material. The first active material is a carbon material having a D/G ratio of 0.15 or less, where G represents the peak intensity observed in a Raman spectrum from 1578 to 1592 cm | 06-27-2013 |
20130164619 | 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. | 06-27-2013 |
20130177807 | BINDER FOR ELECTRODE OF LITHIUM BATTERY AND LITHIUM BATTERY CONTAINING THE BINDER - A binder for an electrode of a lithium battery, and a lithium battery containing the binder. The binder includes: a carbon nanotube; and a polymer chemically bonded to the carbon nanotube, and thus may form a conducting path by improving dispersion of the carbon nanotube. Accordingly, the binder may have high capacity and improve the lifetime of the lithium battery. | 07-11-2013 |
20130202963 | 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. | 08-08-2013 |
20130209882 | COMPOSITE BINDER FOR BATTERY, AND ANODE AND BATTERY INCLUDING THE COMPOSITE BINDER - In one aspect, a composite binder for a battery, including an inorganic particle; a binder polymer; and an organic-inorganic coupling agent, a negative electrode including the composite binder, and a lithium battery including the negative electrode is provided. | 08-15-2013 |
20130216910 | 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/cm | 08-22-2013 |
20130224591 | ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY - The electrode for a lithium-ion secondary battery of the present invention includes an electrode mixture layer including metal oxide particles having a scaly shape and a new Mohs hardness of 9.0 or more, active material particles capable of intercalating and deintercalating Li, and a resin binder. Further, the lithium-ion secondary battery of the present invention includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator. The positive electrode and/or the negative electrode is the electrode for a lithium-secondary battery of the present invention. | 08-29-2013 |
20130224592 | Lithium Ion Battery And Method For Producing The Same - Provided is a lithium ion battery having a long service life by improving an adhesion strength between a binder resin and a metal foil. A binder resin, which is a compound having a chemical structure that contains a polyvinylidene fluoride molecular chain, a six-membered ring such as a cyclohexane ring, and an end group selected from the group consisting of SiX | 08-29-2013 |
20130236785 | ELECTRODE PLATE, PREPARING METHOD THEREFOR, SUPER CAPACITOR AND LITHIUM ION BATTERY - An electrode plate is provided. The electrode plate includes a substrate and a coating coated on the substrate plate, wherein the coating includes fluoride oxide graphene materials. The fluoride oxide graphene material has excellent conductivity, so that the electrode material which is made of the graphene material has high energy density and electrical conduction efficiency. A preparing method for the electrode plate, and a super capacitor and a lithium ion battery both prepared with the electrode plate are also provided. | 09-12-2013 |
20130236786 | ELECTRODE SHEET AND ITS PREPARATION METHOD AND SUPER CAPACITOR AND LITHIUM ION BATTERY - An electrode sheet is provided. The electrode sheet includes a substrate and a coating layer coated on the substrate. The coating layer includes a graphene fluoride stuff, the graphene fluoride stuff has excellent conductivity. An electrode material produced by the graphene fluoride stuff has higher energy density and higher conductivity. Furthermore, a preparation method of the electrode sheet, a super capacitor and a lithium ion battery used the electrode sheet are provided. | 09-12-2013 |
20130244110 | 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. | 09-19-2013 |
20130252100 | COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY - Provided are a composite positive electrode active material, an electrode for a lithium secondary battery including the composite positive electrode active material, and a lithium secondary battery, and more particularly, a composite positive electrode active material including lithium composite oxide, activated carbon, and carbon black, an electrode for a lithium secondary battery including the composite positive electrode active material, and a lithium secondary battery. The present disclosure may provide a lithium secondary battery having improved rate characteristics in a low-temperature atmosphere. | 09-26-2013 |
20130252101 | NANOPOROUS SILICON AND LITHIUM ION BATTERY ANODES FORMED THEREFROM - An electrode for a lithium ion battery, the electrode including nanoporous silicon structures, each nanoporous silicon structure defining a multiplicity of pores, a binder, and a conductive substrate. The nanoporous silicon structures are mixed with the binder to form a composition, and the composition is adhered to the conductive substrate to form the electrode. The nanoporous silicon may be, for example, nanoporous silicon nanowires or nanoporous silicon formed by etching a silicon wafer, metallurgical grade silicon, silicon nanoparticles, or silicon prepared from silicon precursors in a plasma or chemical vapor deposition process. The nanoporous silicon structures may be coated or combined with a carbon-containing compound, such as reduced graphene oxide. The electrode has a high specific capacity (e.g., above 1000 mAh/g at current rate of 0.4 A/g, above 1000 mAh/g at a current rate of 2.0 A/g, or above 1400 mAh/g at a current rate of 1.0 A/g). | 09-26-2013 |
20130252102 | 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. | 09-26-2013 |
20130260240 | 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. | 10-03-2013 |
20130260241 | 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. | 10-03-2013 |
20130266863 | 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. | 10-10-2013 |
20130273423 | 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. | 10-17-2013 |
20130273424 | Vinylidene Fluoride Copolymers and Uses of the Copolymers - Provided are vinylidene fluoride copolymers exhibiting higher adhesion with respect to metal foils than do conventional vinylidene fluoride copolymers, and to provide uses of the vinylidene fluoride copolymers. The vinylidene fluoride copolymers are obtained by copolymerizing vinylidene fluoride with a compound represented by Formula (A). In Formula (A), R | 10-17-2013 |
20130288126 | 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. | 10-31-2013 |
20130288127 | 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. | 10-31-2013 |
20130288128 | ACTIVE MATERIAL OF NEGATIVE ELECTRODE, TILTED-GRID SUBSTRATE OF NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR NICKEL-ZINC BATTERY, AND METHODS FOR PREPARING NEGATIVE ELECTRODE - The present invention provides a tilted-grid substrate of a negative electrode for a nickel-zinc battery, including a first zinc foil layer; a copper foil layer compounded on the first zinc foil layer; and a second zinc foil layer compounded on the copper foil layer. The present invention further provides an active material composition of a negative electrode for a nickel-zinc battery, a negative electrode for a nickel-zinc battery, the method for preparing the negative electrode, and a nickel-zinc battery. In the tilted-grid substrate of a negative electrode according to the present invention, the surface of zinc eliminates the needs for plating other metal, avoiding the incorporation of impurities. With the use of the nickel-zinc battery, part of the zinc on the surface of the tilted-grid substrate of the negative electrode can participate in the reaction of forming a current in the battery, reducing the fading speed of the battery capacity; and part of the zinc is oxidized to zinc oxide, acting as a conductor to improve the utilization ratio of the active material of the negative electrode. When the zinc layer on the surface of the substrate of the negative electrode participate in the reaction or is oxidized, the copper foil layer can act as the substrate of the negative electrode, so as to improve the performance of the nickel-zinc battery. | 10-31-2013 |
20130309572 | DUAL-LAYER STRUCTURED CATHOD AND ELECTROCHEMICAL CELL - The present invention relates to dual-layered structured sulfur cathodes comprising (a) an electroactive layer and (b) a non-electroactive conductive layer, wherein the non-electroactive conductive layer adsorbs soluble polysulfides and provides reaction sites for the reduction of polysulfides. The present invention also relates to method of making dual-layered structured sulfur cathodes and electrochemical cells. | 11-21-2013 |
20130323592 | 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. | 12-05-2013 |
20130323593 | RECHARGEABLE ENERGY STORAGE UNIT - A rechargeable energy storage unit is proposed. The rechargeable energy storage unit has a first and a second electrode. The first electrode is assigned an energy storage material in the form of metal particles made from at least one metal which can be deoxidized during charging operation of the energy storage unit and can be oxidized during discharging operation of the energy storage unit. The metal particles are incorporated into a matrix-forming carrier material. | 12-05-2013 |
20130330621 | METHOD FOR PRODUCING FLUORINATED COPOLYMER LATEX, FLUORINATED COPOLYMER LATEX, BINDER FOR PRODUCING ELECTRODE, ELECTRODE MIXTURE FOR STORAGE BATTERY DEVICE, AND ELECTRODE FOR STORAGE BATTERY DEVICE - To produce a method for producing a fluorinated copolymer latex with a low content of metal components and with favorable stability of the latex even with a low content of an organic solvent. | 12-12-2013 |
20130330622 | SECONDARY CELL NEGATIVE ELECTRODE, SECONDARY CELL SLURRY COMPOSITION FOR NEGATIVE ELECTRODE, AND METHOD OF PRODUCING SECONDARY CELL NEGATIVE ELECTRODE - In a negative electrode for a secondary battery including a negative electrode active material, a binder, and a water-soluble polymer, a copolymer containing 15 wt % to 50 wt % of an ethylenically unsaturated carboxylic acid monomer unit, 30 wt % to 70 wt % of a (meth)acrylic acid ester monomer unit, and 0.5 wt % to 10 wt % of a fluorine-containing (meth)acrylic acid ester monomer unit is used as the water-soluble polymer. | 12-12-2013 |
20130337324 | 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. | 12-19-2013 |
20140023927 | SILICON ALLOY BASED NEGATIVE ACTIVE MATERIAL AND COMPOSITION INCLUDING SAME AND METHOD OF PREPARING SAME AND LITHIUM RECHARGEABLE BATTERY - A silicon alloy-based negative active material includes a particle including a core including a silicon alloy-based material, and a coating layer including an organic binder. | 01-23-2014 |
20140038046 | 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. | 02-06-2014 |
20140038047 | 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. | 02-06-2014 |
20140038048 | 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. | 02-06-2014 |
20140038049 | 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. | 02-06-2014 |
20140045065 | 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. | 02-13-2014 |
20140057170 | 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. | 02-27-2014 |
20140072873 | 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. | 03-13-2014 |
20140106217 | BINDER FOR ELECTRODE OF LITHIUM BATTERY, BINDER COMPOSITION INCLUDING THE BINDER, AND LITHIUM BATTERY CONTAINING THE BINDER - In an aspect, a binder for a lithium battery electrode, a binder composition including the binder, and a lithium battery including the binder are provided. The binder may include a water-soluble electroconductive polymer having a carboxylate functional group | 04-17-2014 |
20140106218 | POLYMER ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE POLYMER AND LITHIUM SECOND BATTERY EMPLOYING THE ELECTRODE - A polymer includes a first repeating unit having a cationic group and a second repeating unit having an anionic group. The polymer may further include a third repeating unit having a non-ionic group. The polymer may include first and second polymers, each of which includes a first repeating having a cationic group and a second repeating unit having an anionic group. The cationic group of the first polymer may form an intermolecular bond with the anionic group of the second polymer, and the anionic group of the first polymer may form an intermolecular bond with the cationic group of the second polymer. An electrode for a lithium secondary battery includes the polymer, and a lithium secondary battery employs the electrode. | 04-17-2014 |
20140120422 | COMPONENT INCLUDING A RECHARGEABLE BATTERY - According to the invention there is provided a component including a rechargeable battery and a method of producing same. The component uses one of an acid and an alkaline chemistry and the battery has an anode structure, a cathode structure, and a separator structure which separates the anode from the cathode and contains an electrolyte. The anode structure and the cathode structure are each formed from a composite material which includes electrically conductive fibres and electrochemically active material in a binder matrix including less than 50% w/w of an elastomer binder and the battery is formed to be structurally inseparable from the rest of the component. | 05-01-2014 |
20140120423 | ELECTRODE FOR LITHIUM SECONDARY BATTERIES, LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING ELECTRODE FOR LITHIUM SECONDARY BATTERIES - This invention related to an electrode for lithium secondary batteries, which enables high-rate charging and discharging and is capable of maintaining high battery capacity retention ratio even under large charge and discharge current conditions; a lithium secondary battery; and a method for producing an electrode for lithium secondary batteries. The electrode for lithium secondary batteries includes a metal foil, a coating layer that is provided on the surface of the metal foil and an electrode mixture laminated on the surface of the coating layer, and wherein the coating layer contains a binder and conductive particles; and the electrode mixture contains an electrode active material and 0 to 1.4 mass % of a conductive additive with respect to the electrode mixture. | 05-01-2014 |
20140127578 | ACTIVE MATERIAL FOR A SECONDARY BATTERY, SECONDARY BATTERY INCLUDING THE ACTIVE MATERIAL, AND METHOD OF PREPARING AN ACTIVE MATERIAL - An active material for a secondary battery, a secondary battery including the active material, and a method of preparing an active material, the active material including a silicon-based core; and an aluminum-based coating layer on at least a part of the silicon-based core. | 05-08-2014 |
20140127579 | ALL-SOLID STATE SECONDARY CELL - An all-solid state secondary cell which has a positive electrode active material layer, negative electrode active material layer, and solid electrolyte layer, wherein at least one of said positive electrode active material layer, said negative electrode active material layer, and said solid electrolyte layer includes an inorganic solid electrolyte and a binder comprised of an average particle size 30 to 300 nm particulate-shaped polymer and said particulate-shaped polymer is present in said positive electrode active material layer, said negative electrode active material layer, and said solid electrolyte layer in a state holding the particulate state, is provided. | 05-08-2014 |
20140141328 | NITROGEN-SULFUR-CARBON NANOCOMPOSITES AND THEIR APPLICATION AS CATHODE MATERIALS IN LITHIUM-SULFUR BATTERIES - The invention is directed in a first aspect to electron-conducting porous compositions comprising an organic polymer matrix doped with nitrogen atoms and having elemental sulfur dispersed therein, particularly such compositions having an ordered framework structure. The invention is also directed to composites of such S/N-doped electron-conducting porous aromatic framework (PAF) compositions, or composites of an S/N-doped mesoporous carbon composition, which includes the S/N-doped composition in admixture with a binder, and optionally, conductive carbon. The invention is further directed to cathodes for a lithium-sulfur battery in which such composites are incorporated. | 05-22-2014 |
20140141329 | MOLYBDENUM OXIDES AND USES THEREOF - The present disclosure describes, among other things, new layered molybdenum oxides for lithium ion battery cathodes from solid solutions of Li | 05-22-2014 |
20140154573 | AQUEOUS VINYLIDENE FLUORIDE POLYMER LATEX - The present invention pertains to an aqueous composition comprising: (A) an aqueous latex comprising at least one vinylidene fluoride (VDF) polymer [polymer (F)] comprising recurring units derived from vinylidene fluoride (VDF) and at least one (meth)acrylic monomer (MA) having formula (I) here below: wherein: —R | 06-05-2014 |
20140170491 | MESOPOROUS STARBURST CARBON INCORPORATED WITH METAL NANOCRYSTALS OR METAL OXIDE NANOCRYSTALS, AND USES THEREOF - A composition is provided that includes mesoporous carbon domains. Each of the mesoporous carbon domains is incorporated with particles of metal or metal oxide in an amount of from 40 to 85 total weight percent of the composition. The metal or metal oxide particles can include tin, cobalt, copper, molybdenum, nickel, iron, or ruthenium, or an oxide thereof. The resulting composition when combined with a binder from a battery electrode. Such a battery electrode operating as an anode in a lithium ion battery has specific capacities of more than 1000 miliAmperes-hour per gram after 15 of the galvanostatic cycles. | 06-19-2014 |
20140186704 | LITHIUM ION SECONDARY BATTERY ELECTRODE, MANUFACTURING PROCESS FOR THE SAME, AND LITHIUM ION SECONDARY BATTERY USING THE ELECTRODE - To provide a lithium ion secondary battery electrode in which a coated layer is held on a surface of an active material layer over a long period of time to suppress decomposition of the electrolysis solution and to enhance the cyclability, a manufacturing process for the same, and a lithium ion secondary battery using the electrode. | 07-03-2014 |
20140186705 | Lithium Batteries Containing Lithium-Bearing Iron Phosphate and Carbon - The invention relates to lithium-bearing iron phosphate in the form of micrometric mixed aggregates of nanometric particles, to an electrode and cell resulting therefrom and to the method for manufacturing same, which is characterized by a nanomilling step. | 07-03-2014 |
20140193711 | COMBINED ELECTROCHEMICAL AND CHEMICAL ETCHING PROCESSES FOR GENERATION OF POROUS SILICON PARTICULATES - Embodiments of the present disclosure pertain to methods of preparing porous silicon particulates by: (a) electrochemically etching a silicon substrate, where electrochemical etching comprises exposure of the silicon substrate to an electric current density, and where electrochemical etching produces a porous silicon film over the silicon substrate; (b) separating the porous silicon film from the silicon substrate, where the separating comprises a gradual increase of the electric current density in sequential increments; (c) repeating steps (a) and (b) a plurality of times; (d) electrochemically etching the silicon substrate in accordance with step (a) to produce a porous silicon film over the silicon substrate; (e) chemically etching the porous silicon film and the silicon substrate; and (f) splitting the porous silicon film and the silicon substrate to form porous silicon particulates. Further embodiments of the present disclosure pertain to the formed porous silicon particulates and anode materials that contain them. | 07-10-2014 |
20140193712 | ALGINATE-CONTAINING COMPOSITIONS FOR USE IN BATTERY APPLICATIONS - A silicon-based anode comprises an alginate-containing binder. The many carboxy groups of alginate bind to a surface of silicon, creating strong, rigid hydrogen bonds that withstand battery cycling. The alginate-containing binder provides good performance to the anode by (1) improving the capacity of the anode in comparison to other commercially-available binders, (2) improving Columbonic efficiency during charging and discharging cycles, and (3) improving stability during charging and discharging cycles. | 07-10-2014 |
20140199593 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY PACK - A negative electrode for a nonaqueous electrolyte secondary battery has a current collector, a negative electrode active material layer containing a negative electrode active material and a binder that binds the negative electrode active material, and an azole compound having an amino group as a functional group at a part of an interface between the negative electrode active material layer and the current collector. | 07-17-2014 |
20140205904 | BINDER COMPOSITION FOR SECONDARY BATTERY NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR SECONDARY BATTERY, NEGATIVE ELECTRODE SLURRY COMPOSITION, MANUFACTURING METHOD, AND SECONDARY BATTERY - A binder composition for a negative electrode of a secondary battery, including a particulate binder, and a water-soluble polymer containing an acidic functional group, wherein the water-soluble polymer has an ion conductivity of 1×10 | 07-24-2014 |
20140220440 | COATED IRON ELECTRODE AND METHOD OF MAKING SAME - Provided is 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. The iron based electrode is useful in a Ni—Fe battery as the anode. The electrode can also be prepared by continuously coating each side of the substrate with a coating mixture comprising the iron active material and binder. | 08-07-2014 |
20140220441 | IRON ELECTRODE EMPLOYING A POLYVINYL ALCOHOL BINDER - The present invention provides one with an iron electrode employing a binder comprised of polyvinyl alcohol (PVA) binder. In one embodiment, 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. | 08-07-2014 |
20140220442 | LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME - A lithium secondary battery provided by this invention has electrodes and configured in a structure in which active material layers, including active materials and binders, are held by collectors. The active material of at least one of the positive electrode and the negative electrode of the electrodes is formed from a metal compound which stores and releases lithium ions through conversion reactions. The lithium secondary battery includes a polyimide-base resin as a binder. | 08-07-2014 |
20140234709 | THREE DIMENSIONAL POSITIVE ELECTRODE FOR LiCFx TECHNOLOGY PRIMARY ELECTROCHEMICAL GENERATOR - An electrode comprising a current collector containing aluminum, having a three dimensional porous structure in which:
| 08-21-2014 |
20140242461 | ANODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - An anode for a lithium secondary battery including: a composite anode active material including an anode active material, and a water-soluble polymer disposed on a surface of the anode active material; and a binder disposed on the composite anode active material, the binder including one or more selected from a polyimide, a polyamideimide, a polyamide, and a polyetherimide. | 08-28-2014 |
20140248537 | SLURRY COMPOSITION FOR FORMING LITHIUM SECONDARY BATTERY ELECTRODE CONTAINING CELLULOSE FIBER AS BINDER, AND LITHIUM SECONDARY BATTERY ELECTRODE - There is provided a novel slurry composition for forming a lithium secondary battery electrode which can improve homogeneity of an electrode active material and a conductive assistant even without using an organic solvent and can improve the binding of an electrode active material and a conductive assistant with an electrode collector, and a lithium secondary battery with improved charge/discharge cycle characteristics and battery capacity. A slurry composition for forming a lithium secondary battery electrode, characterized by comprising an electrode active material (A), a conductive assistant (B), and a pulverized cellulose fiber (C) as an aqueous binder, and a lithium secondary battery electrode and a lithium secondary battery which are obtained using the composition, and an aqueous binder used for the composition. | 09-04-2014 |
20140255782 | METHOD FOR PREPARING SELF-SUPPORTING FLEXIBLE ELECTRODES - The present invention relates to a method for preparing self-supporting flexible electrodes by a method that implements refined cellulose fibres as binder. | 09-11-2014 |
20140272573 | ANODES INCLUDING MESOPOROUS HOLLOW SILICON PARTICLES AND A METHOD FOR SYNTHESIZING MESOPOROUS HOLLOW SILICON PARTICLES - Anodes including mesoporous hollow silicon particles are disclosed herein. A method for synthesizing the mesoporous hollow silicon particles is also disclosed herein. In one example of the method, a silicon dioxide sphere having a silicon dioxide solid core and a silicon dioxide mesoporous shell is formed. The silicon dioxide mesoporous shell is converted to a silicon mesoporous shell using magnesium vapor. The silicon dioxide solid core, any residual silicon dioxide, and any magnesium-containing by-products are removed to form the mesoporous, hollow silicon particle. | 09-18-2014 |
20140272574 | BINDER COMPOSITION FOR RECHARGEABLE BATTERY AND RECHARGEABLE LITHIUM BATTERY HAVING THE SAME - A binder composition for a rechargeable battery, including a binder polymer having a glass transition temperature (Tg) of 20° C. or less, and having a storage modulus (60° C.) of 50-150 MPa. The binder composition according to an embodiment can improve life characteristics of the rechargeable battery by efficiently controlling expansion of a negative electrode plate. | 09-18-2014 |
20140272575 | BINDER FOR RECHARGEABLE LITHIUM BATTERY, ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY INCLUDING BINDER, METHOD OF PREPARING ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING ELECTRODE - Embodiments are directed to a binder for a rechargeable lithium battery, the binder including a copolymer including a repeating unit represented by Chemical Formula X, a repeating unit represented by Chemical Formula Y-1, and a repeating unit represented by Chemical Formula Z, and lithium ions, | 09-18-2014 |
20140287307 | Novel Sulphur-Modified Monolithic Porous Carbon-Based Material, Process For The Preparation Thereof And Uses Thereof In The Storage And Release Of Energy - A subject-matter of the invention is a novel process for the preparation of sulphur-modified monolithic porous carbon-based materials by impregnation with a strong sulphur-based acid, the materials capable of being obtained according to this process and the use of these materials with improved supercapacitance properties to produce electrodes intended for energy storage systems. Electrodes composed of sulphur-modified monolithic porous carbon-based materials according to the invention and lithium batteries and supercapacitors having such electrodes also form part of the invention. | 09-25-2014 |
20140287308 | Binder Resin for Nonaqueous Secondary Battery Electrode, Binder Resin Composition for Nonaqueous Secondary Battery Electrode Slurry Composition for Nonaqueous Secondary Battery Electrode, Electrode for Nonaqueous Secondary Battery, and Nonaqueous Secondary Battery - A binder resin for a nonaqueous secondary battery electrode of the invention satisfies I | 09-25-2014 |
20140308582 | NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND METHOD FOR PRODUCING THE NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY - Provided is a negative electrode for lithium ion secondary batteries, which can enhance the penetration of non-aqueous electrolyte, and can improve the input-output characteristics. The negative electrode includes a negative electrode core material sheet, and a negative electrode material mixture layer supported thereon. The negative electrode material mixture layer includes negative electrode active material particles, and a binder. The negative electrode material mixture layer has a plurality of pores interspersed on the surface and in the interior of the negative electrode material mixture layer. The pores have an average maximum diameter R of 45 to 125 μm. The pores have a number density of 8 to 17 pores per 1 cm | 10-16-2014 |
20140315083 | GRAPHENE COATING MODIFIED ELECTRODE PLATE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - The present invention provides a graphene coating-modified electrode plate for lithium secondary battery, characterized in that, the electrode plate comprises a current collector foil, graphene layers coated on both surfaces of the current collector foil, and electrode active material layers coated on the graphene layers. A graphene coating-modified electrode plate for lithium secondary battery according to the present invention comprises a current collector foil, graphene layers coated on both surfaces of the current collector foil, and electrode active material layers coated on the graphene layers. The graphene-modified electrode plate for lithium secondary battery thus obtained increases the electrical conductivity and dissipation functions of the electrode plate due to the better electrical conductivity and thermal conductivity of graphene. The present invention further provides a method for producing a graphene coating-modified electrode plate for lithium secondary battery. | 10-23-2014 |
20140335408 | ANODE ELECTRODES FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME - Disclosed is an anode for secondary batteries, in which an anode mixture including an anode active material and a binder is coated on a current collector, wherein the binder includes a homopolymer having a molecular weight of 1,000,000 to 1,400,000 and the anode active material includes a lithium metal oxide represented by Formula 1 below: | 11-13-2014 |
20140335409 | Transition Metal Hexacyanometallate Electrode with Water-soluble Binder - A method is provided for fabricating a transition metal hexacyanometallate (TMHCM) electrode with a water-soluble binder. The method initially forms an electrode mix slurry comprising TMHCF and a water-soluble binder. The electrode mix slurry is applied to a current collector, and then dehydrated to form an electrode. The electrode mix slurry may additionally comprise a carbon additive such as carbon black, carbon fiber, carbon nanotubes, graphite, or graphene. The electrode is typically formed with TMHCM greater than 50%, by weight, as compared to a combined weight of the TMHCM, carbon additive, and binder. Also provided are a TMHCM electrode made with a water-soluble binder and a battery having a TMHCM cathode that is made with a water-soluble binder. | 11-13-2014 |
20140335410 | ELECTRODE COMPOSITION FOR A SECONDARY BATTERY CELL - Disclosed are a composite electrode material for a rechargeable battery; a method of making a composite electrode material; an electrode including the composite electrode material; cells including such electrodes; and devices including the cells. A composite electrode material for a rechargeable battery cell includes an electroactive material; and a polymeric binder including pendant carboxyl groups. The electroactive material includes one or more components selected from the group including 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. The polymeric binder has a molecular weight in the range 300,000 to 3,000,000. 40 to 90% of the carboxyl groups of the binder are in the form of a metal ion carboxylate salt. | 11-13-2014 |
20140342223 | Actinic and Electron Beam Radiation Curable Water Based Electrode Binders and Electrodes Incorporating Same - A process for manufacturing an electrode utilizing electron beam (EB) or actinic radiation to cure the electrode binder is provided. A process is also disclosed for mixing specific actinic or EB radiation curable polymer precursors with electrode solid particles to form an aqueous mixture, application of the mixture to an electrode current collector, followed by the application of actinic or EB radiation to the current collector for curing the polymer, thereby binding the electrode binder to the current collector. Lithium ion batteries, electric double layer capacitors, and components produced therefrom are also provided. | 11-20-2014 |
20140342224 | ELECTRODE-FORMING COMPOSITION - The invention pertains to an aqueous electrode-forming composition comprising:—at least one fluoropolymer [polymer (F)];—particles of at least one powdery active electrode material [particles (P)], said particles (P) comprising a core of an active electrode compound [compound (E)] and an outer layer of a metallic compound [compound (M)] different from Lithium, said outer layer at least partially surrounding said core; and—water, to a process for its manufacture, to a process for manufacturing an electrode structure using the same, to an electrode structure made from the same and to an electrochemical device comprising said electrode structure. | 11-20-2014 |
20140342225 | ELECTRODE FOR ELECTROCHEMICAL DEVICE - An electrode for electrochemical device which is provided with an electrode active material layer containing an electrode active material and a binder, comprising binder-covered parts | 11-20-2014 |
20140342226 | ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, SLURRY COMPOSITION, AND METHOD FOR PRODUCING ELECTRODE FOR LITHIUM ION SECONDARY BATTERY - An electrode for a lithium ion secondary battery includes an electrode active material and a water-soluble polymer. The water-soluble polymer is a copolymer containing 1% by weight to 30% by weight of an aromatic vinyl monomer unit, 20% by weight to 60% by weight of an unsaturated carboxylic acid monomer unit, and 0.1% by weight to 5% by weight of a crosslinkable monomer unit. | 11-20-2014 |
20140349184 | 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 limitation, 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. | 11-27-2014 |
20140349185 | Binder Resin Composition for Secondary Battery Electrodes, Slurry for Secondary Battery Electrodes, Electrode for Secondary Batteries, and Lithium Ion Secondary Battery - A binder resin composition for secondary battery electrodes is described as containing a polymer (A) that has a structural unit represented by general formula (1) and a water-insoluble particulate polymer (B-1) and/or a water-soluble polymer (B-2) where (A), (B-1) and (B-2) are defined as described. A slurry for secondary battery electrodes contains the binder resin composition, an active material and a solvent. An electrode for secondary batteries is provided with a collector and an electrode layer that is arranged on the collector, where the electrode layer contains an active material and the binder resin composition. Alternatively, the electrode layer is obtained by applying the slurry for secondary battery electrodes to the collector, and drying the slurry thereon. | 11-27-2014 |
20140349186 | METHOD OF DEPOSITING SILICON ON CARBON MATERIALS AND FORMING AN ANODE FOR USE IN LITHIUM ION BATTERIES - A method of modifying the surface of carbon materials such as vapor grown carbon nanofibers is provided in which silicon is deposited on vapor grown carbon nanofibers using a chemical vapor deposition process. The resulting silicon-carbon alloy may be used as an anode in a rechargeable lithium ion battery. | 11-27-2014 |
20140356710 | ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING ELECTRODE - In an aspect, an electrode for a rechargeable lithium battery including a current collector and an active material layer positioned on the current collector, wherein the active material layer includes an active material and a binder, the binder includes an acryl-based compound including a repeating unit is provided. | 12-04-2014 |
20140356711 | LITHIUM ION SECONDARY BATTERY - In a lithium ion secondary battery including a positive electrode, a separator, and a negative electrode opposed to the positive electrode with an intervention of the separator, the negative electrode includes a negative electrode active material including a silicon compound, and a negative electrode binder including a particular polyimide, and lithium is occluded in both the negative electrode active material and the negative electrode binder even during discharge. | 12-04-2014 |
20140370380 | CORE-SHELL HIGH CAPACITY NANOWIRES FOR BATTERY ELECTRODES - Provided are nanostructures containing electrochemically active materials, battery electrodes containing these nanostructures for use in electrochemical batteries, such as lithium ion batteries, and methods of forming the nanostructures and battery electrodes. The nanostructures include conductive cores, inner shells containing active materials, and outer shells partially coating the inner shells. The high capacity active materials having a stable capacity of at least about 1000 mAh/g can be used. Some examples include silicon, tin, and/or germanium. The outer shells may be configured to substantially prevent formation of Solid Electrolyte lnterphase (SEI) layers directly on the inner shells. The conductive cores and/or outer shells may include carbon containing materials. The nanostructures are used to form battery electrodes, in which the nanostructures that are in electronic communication with conductive substrates of the electrodes. | 12-18-2014 |
20140370381 | SECONDARY BATTERY - A secondary battery includes: a negative electrode; a positive electrode containing a p-type semiconductor material; and an isolation layer configured to isolate the negative electrode from the positive electrode and including a hole transmission member. The isolation layer is layered by being applied to at least one of the negative electrode and the positive electrode. Preferably, the hole transmission member contains α-alumina. Preferably, the isolation layer includes the same binding agent as the negative electrode or the positive electrode. | 12-18-2014 |
20140370382 | HYBRID BATTERY BINDER - Disclosed is a composition comprising an ethylene copolymer and a polyetherimide, polyamideimide, polycarbonate, polyetheretherketone, polysulfone or polyethersulfone wherein the ethylene copolymer comprises or is produced from repeat units derived from ethylene and a comonomer selected from the group consisting of an α,β-unsaturated monocarboxylic acid or its derivative, an α,β-unsaturated dicarboxylic acid or its derivative, an epoxide-containing monomer, a vinyl ester, or combinations of two or more thereof; and the composition can further comprise a curing agent to crosslink the ethylene copolymer. The composition is useful as a binder for a lithium ion battery. | 12-18-2014 |
20140370383 | ETHYLENE COPOLYMER-FLUOROPOLYMER HYBRID BATTERY BINDER - Disclosed is a composition comprising an ethylene copolymer and a halogenated polymer, wherein the ethylene copolymer comprises or is produced from repeat units derived from ethylene and a comonomer selected from the group consisting of an α,β-unsaturated monocarboxylic acid or its derivative, an α,β-unsaturated dicarboxylic acid or its derivative, an epoxide-containing monomer, a vinyl ester, or combinations of two or more thereof; and the composition can further comprise a curing agent to crosslink the ethylene copolymer. The composition is useful as a binder for a lithium ion battery. | 12-18-2014 |
20140370384 | FILM-TYPE NEGATIVE ELECTRODE FILLED WITH ACTIVE MATERIAL AND METHOD OF MANUFACTURING THE SAME - There are provided a film-type negative electrode filled with an active material and a method of manufacturing the same. The negative electrode according to the present invention includes a porous base film and a negative active material nanoparticle filled in pores of the porous base film According to the present invention, an excessive change in volume of a negative active material can be minimized during charging and discharging so as to improve a lifespan characteristic. | 12-18-2014 |
20140377649 | METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY - Provided is a method for producing a negative electrode for lithium secondary batteries, the negative electrode being capable of imparting high cycle characteristics to a lithium secondary battery. A method for producing a negative electrode | 12-25-2014 |
20140377650 | ASSEMBLY CONSISTING OF A CURRENT COLLECTOR AND A SILICON ELECTRODE - The invention relates to an assembly comprising a current collector and a silicon electrode, wherein the current collector and the electrode are connected together via at least one of the surfaces thereof by an elastic polymer layer. The invention can be used in the field of lithium batteries. | 12-25-2014 |
20140377651 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a porous organic-inorganic layer formed on the electrode active material layer and comprising inorganic particles and a polymer binder; and a first porous supporting layer formed on the porous organic-inorganic layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery. | 12-25-2014 |
20140377652 | Electrode For Secondary Battery And Secondary Battery Including The Same - Disclosed is an electrode for secondary batteries including an electrode mixture including an electrode active material, binder and conductive material coated on a current collector. The present invention provides an electrode for secondary batteries wherein an electrode active material is a cathode active material and/or anode active material, and the conductive material is included in an amount of 0.1 to 15% based on total weight of the electrode mixture, and a secondary battery including the same. | 12-25-2014 |
20150010815 | BINDER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, PREPARING METHOD OF SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING BINDER COMPOSITION - A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2, and polyacrylamide. | 01-08-2015 |
20150010816 | BINDER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, PREPARING METHOD OF SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING BINDER COMPOSITION - A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2 and polyacrylamide, and polyalkylene glycol. | 01-08-2015 |
20150010817 | STABLE CYCLING OF LITHIUM SULFIDE CATHODES THROUGH STRONG AFFINITY WITH MULTIFUNCTIONAL BINDERS - A manufacturing method of a battery electrode includes: (1) mixing Li | 01-08-2015 |
20150017531 | BINDER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, AND NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A binder composition for a rechargeable lithium battery includes a polyacrylic acid compound substituted with a halogen ion and a trivalent or quadrivalent metal ion. | 01-15-2015 |
20150017532 | BINDER, CATHODE MIXTURE AND ANODE MIXTURE - A binder, including a fluoropolymer, the fluoropolymer including a polymerization unit based on vinylidene fluoride and a polymerization unit based on a monomer having an amide group represented by —CO—NRR′ (R and R′ are the same as or different from each other and each represent a hydrogen atom or an alkyl group optionally having a substituent group) or an amide bond represented by —CO—NR″— (R″ represents a hydrogen atom, an alkyl group optionally having a substituent group, or a phenyl group optionally having a substituent group) and having a solution viscosity of 10 to 20,000 mPa·s. Also disclosed is a positive electrode mixture and a negative electrode mixture containing the binder, a positive electrode, a negative electrode and a lithium ion secondary cell. | 01-15-2015 |
20150017533 | BINDER FOR ELECTRODES OF LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY WHICH USES ELECTRODE PRODUCED USING BINDER FOR ELECTRODES OF LITHIUM SECONDARY BATTERIES - To provide a binder that has high adhesiveness to a collector, does not cause release in press molding, has high flexibility, and is excellent in binding capability and resistance to an electrolytic solution, and to provide a lithium secondary battery that is excellent in charge and discharge characteristics using an electrode produced with the binder. The binder for an electrode used contains a hydrophilic group-containing polyurethane as a water dispersion that contains (A) a polyisocyanate, (B) a compound that has two or more active hydrogen groups, (C) a compound that has one or more active hydrogen groups and one or more hydrophilic groups, and (D) a chain extending agent, or contains an aqueous resin composition containing a polymer of an unsaturated polymerizable monomer that is emulsified with the hydrophilic group-containing polyurethane. | 01-15-2015 |
20150017534 | RESIN COMPOSITION FOR LITHIUM ION CELL POSITIVE ELECTRODE - Disclosed is a resin composition for positive electrodes of lithium ion cells, which imparts strong adhesiveness and electrolyte injectability and shows good discharge and charge characteristics and input-output characteristics with smaller amount of a binder. The resin composition for positive electrodes of lithium ion cells is a resin composition for positive electrodes of lithium ion cells, which comprises a polyimide precursor whose average thermal linear expansion coefficient in the range of 20° C. to 200° C. after being imidized is 3 to 50 ppm, and/or a polyimide whose average thermal linear expansion coefficient in the range of 20° C. to 200° C. is 3 to 50 ppm, and a positive electrode active compound, wherein the positive electrode active compound is one obtained by coating the surface of a composite oxide containing lithium with a lithium ion conductive material. | 01-15-2015 |
20150030921 | ELECTRODE BINDER FOR SECONDARY BATTERY AND ELECTRODE FOR SECONDARY BATTERY COMPRISING THE SAME - Provided are an electrode binder for a secondary battery including an amine-based compound expressed by Chemical Formula 1 below and water-based binder particles including at least one carboxyl group as an end group, a method of preparing the same, and an electrode for a secondary battery including the electrode binder for a secondary battery | 01-29-2015 |
20150030922 | BINDER COMPOSITION FOR SECONDARY BATTERY POSITIVE ELECTRODE, SLURRY COMPOSITION FOR SECONDARY BATTERY POSITIVE ELECTRODE, POSITIVE ELECTRODE, AND SECONDARY BATTERY - [Problem] To provide a binder composition having excellent binding properties, a slurry composition having excellent stability, a cathode having good smoothness, electrode winding properties and binding properties, and a secondary battery having excellent output characteristics. [Solution] The binder composition for a secondary battery cathode of the present invention comprises: polymer A including a polymerised unit having a nitrile group, a polymerised unit having a hydrophilic group, and a linear alkylene polymerised unit having a carbon number equal to or greater than four; and polymer B having a glass transition temperature equal to or greater than 25° C. In this binder composition, the proportion of polymerised units having a hydrophilic group in polymer A is from 0.05 to 20 mass %. | 01-29-2015 |
20150030923 | LITHIUM SECONDARY BATTERY HAVING ANODE CONTAINING AQUEOUS BINDER - Disclosed is a lithium secondary battery that includes an anode coated with an anode mixture including an anode active material, a cathode coated with a cathode mixture including a cathode active material, and a non-aqueous electrolyte, wherein the anode mixture includes, as aqueous binders, carboxymethyl cellulose (CMC) having a degree of substitution of a hydroxyl group (—OH) with a carboxymethyl group (—CH | 01-29-2015 |
20150037671 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - It is an object of the exemplary embodiment of the present invention to provide a method for manufacturing a negative electrode for a lithium secondary battery by which conductive metal particles can be uniformly and easily formed in a conductive intermediate layer. The exemplary embodiment of the present invention is a method for manufacturing a negative electrode for a lithium secondary battery comprising a current collector comprising a metal, an active material layer comprising an active material and a binding agent, and a conductive intermediate layer comprising conductive metal particles between the current collector and the active material layer, comprising steps of (1) placing a polyamic acid on the current collector; (2) causing the metal to move from the current collector into the polyamic acid by generating migration phenomenon; and (3) heating and curing the polyamic acid, in this order, wherein the metal that has moved into the polyamic acid forms the conductive metal particles. | 02-05-2015 |
20150037672 | ANODE ACTIVE MATERIAL-CONTAINING SLURRY, ANODE USING THE SLURRY AND ELECTROCHEMICAL DEVICE COMPRISING THE ANODE - The present disclosure relates to an anode active material-containing slurry, an anode using the slurry, and an electrochemical device comprising the anode. More specifically, the present disclosure relates to a slurry comprising an anode active material; a polymer binder comprising styrene butadiene rubber and potassium polyacrylate; a conductive material; and a dispersing medium, an anode using the slurry, and an electrochemical device comprising the anode. The anode active material-containing slurry according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and can form an anode active material layer having a high peeling force even though potassium polyacrylate with a relatively lower weight-average molecular weight is used. | 02-05-2015 |
20150044559 | COMPOSITE PARTICLES FOR NEGATIVE ELECTRODES OF SECONDARY BATTERIES, USE OF SAME, METHOD FOR PRODUCING SAME, AND BINDER COMPOSITION - A secondary battery negative electrode composite particle including a negative electrode active material and a particulate polymer, wherein the particulate polymer include 10% by weight to 60% by weight of a (meth)acrylonitrile monomer unit and 35% by weight to 85% by weight of an aliphatic conjugated diene monomer unit; and a residual amount of an organic compound having an unsaturated bond and a boiling point of 150° C. to 300° C. is 500 ppm or less as a ratio relative to an amount of the particulate polymer. | 02-12-2015 |
20150044560 | ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, AND LITHIUM-ION SECONDARY BATTERY - A highly reliable electrode for a lithium-ion secondary battery is provided. A highly reliable lithium-ion secondary battery is also provided using the electrode for a lithium-ion secondary battery. The electrode for a lithium-ion secondary battery includes a current collector and an active material layer. The active material layer includes an active material, graphene, and polyimide. The active material includes a plurality of nanowires each of which grows with a silicon particle used as a nucleus and extends in one direction into a fine needle. The graphene includes a region in contact with the plurality of nanowires, and polyimide includes a region in contact with the graphene. The lithium-ion secondary battery uses the electrode as a negative electrode. | 02-12-2015 |
20150044561 | BINDER FOR STORAGE BATTERY DEVICE - To provide a binder for a storage battery device whereby favorable adhesion is obtainable and swelling by an electrolytic solution can favorably be suppressed. | 02-12-2015 |
20150050554 | BINDER COMPOSITION FOR SECONDARY BATTERY POSITIVE ELECTRODE, SLURRY COMPOSITION FOR SECONDARY BATTERY POSITIVE ELECTRODE, SECONDARY BATTERY POSITIVE ELECTRODE, AND SECONDARY BATTERY - Provided are a binder composition which has high electrolyte resistance characteristics, and a secondary battery which uses a positive electrode using the binder composition for high-temperature cycle characteristics. [Solution] The binder composition for the secondary battery positive electrode according to the present invention contains a polymerized unit which contains a nitrile group; a polymerized unit of (meth) acrylic acid ester; a polymerized unit which contains a hydrophilic group; and a polymerized unit of linear alkylene having a carbon number of at least four. In a mixed solvent in which a volume ratio EC:DEC between ethylene carbonate (EC) and diethyl carbonate (DEC) at 20° C. is 1:2, a degree of swelling with respect to an electrolyte in which LiPF | 02-19-2015 |
20150050555 | POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY - A positive electrode for a secondary battery wherein the electrode includes a collector and a positive electrode active material layer which is stacked upon the collector, and which includes a positive electrode active material, a conductive agent, and a binder; the binder includes a first polymer and a second polymer; the first polymer is a fluorine-containing polymer; the second polymer includes a polymerized moiety having a nitrile group, a polymerized moiety having a hydrophilic group, a polymerized (meth)acrylic acid ester moiety, and a straight-chain polymerized alkylene moiety having a carbon number of at least 4; the proportion of the first polymer and the second polymer in the binder, expressed as a mass ratio, is in the range of 95:5 to 5:95. | 02-19-2015 |
20150064553 | NEGATIVE ELECTRODE ACTIVE SUBSTANCE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to a negative electrode active substance for non-aqueous electrolyte secondary batteries comprising composite particles comprising metal particles, and a thermosetting resin or a carbonized product of the thermosetting resin, the composite particles having an average particle diameter of 5 to 100 μm; and a lithium ion secondary battery using the negative electrode active substance for non-aqueous electrolyte secondary batteries. The lithium ion secondary battery of the present invention is a non-aqueous electrolyte secondary battery that is prevented from suffering from volume expansion owing to occlusion of Li therein. | 03-05-2015 |
20150064554 | LITHIUM ION SECONDARY BATTERY - The present invention relates to a positive electrode for lithium ion secondary batteries, the positive electrode comprising a positive electrode active material and a positive electrode binder, in which the positive electrode active material comprises lithium manganate having a spinel structure, and the positive electrode binder comprises at least polyvinylidene fluoride (PVDF) and a resin having sulfone linkages, and to a lithium ion secondary battery comprising the positive electrode for lithium ion secondary batteries. | 03-05-2015 |
20150064555 | Negative Electrode Active Material for Nonaqueous Electrolyte Secondary Batteries - Provided is a novel negative electrode for nonaqueous electrolyte secondary batteries, which is capable of improving cycle characteristics and is also capable of suppressing aggregation of active material particles in a slurry. The negative electrode active material for nonaqueous electrolyte secondary batteries, which contains silicon and has a D50 of 0.1 μm to 5 μm, and the amount of water measured at 120° C. to 300° C. by the Karl-Fischer method (referred to as “amount of water”) per specific surface area (referred to as “CS”), that is, the amount of water/CS, of 0.1 to 80 ppm/(m | 03-05-2015 |
20150072233 | NEGATIVE ACTIVE MATERIAL AND LITHIUM BATTERY CONTAINING THE NEGATIVE ACTIVE MATERIAL - A negative active material and a lithium battery including the same are disclosed. The negative active material includes a primary particle including a silicon nanowire formed on a non-carbonaceous conductive core to increase the capacity and cycle lifespan properties of the lithium battery. | 03-12-2015 |
20150072234 | DRY-PARTICLE BASED ADHESIVE AND DRY FILM AND METHODS OF MAKING SAME - Dry process based energy storage device structures and methods for using a dry adhesive therein are disclosed. | 03-12-2015 |
20150079469 | NONAQUEOUS ELECTROLYTE BATTERY - According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode. The positive electrode includes a positive electrode active material-containing layer. The positive electrode active material-containing layer includes at least one lithium-nickel composite oxide and a conductive agent. The positive electrode active material-containing layer has, in a particle size distribution obtained by a laser diffraction scattering method, an average particle diameter d | 03-19-2015 |
20150079470 | NONAQUEOUS ELECTROLYTE BATTERY - According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive current collector and a positive electrode material layer formed on the positive electrode current collector. The positive electrode material layer includes a positive electrode active material and a first conductive agent. In a mapping image for the positive electrode material layer, a ratio of an occupancy area of the first conductive agent to an occupancy area of the positive electrode active material is from 1.5 to 5. | 03-19-2015 |
20150093639 | LITHIUM ION BATTERY ELECTRODES - A lithium ion battery includes a positive electrode and a negative electrode. In an example, a positive electrode for the lithium ion battery includes a lithium transition metal oxide-based active material and a high surface area carbon. The positive electrode further includes a reactive binder having a macrocycle bonded thereto. | 04-02-2015 |
20150099169 | HIGH ENERGY DENSITY MULTIVALENT CONVERSION BASED CATHODES FOR LITHIUM BATTERIES - An electrode for a battery includes a plurality of electrochemically active conversion-based particles coated by multilayer graphene, a plurality of carbon fibers, and a carbonaceous binder. The carbonaceous binder binds the active particles coated with the multilayer graphene to the plurality of carbon fibers. A battery containing the electrode and a method of making an electrode and a battery containing the electrode are also disclosed. | 04-09-2015 |
20150099170 | ALUMINUM FOIL FOR A CURRENT COLLECTOR AND METHOD OF MANUFACTURING THE SAME - At least one foil surface of an aluminum foil is roughened; and in arithmetic mean roughnesses Ra, stipulated in JIS B 0601:2001, of the roughened surface(s), A, which is the arithmetic mean roughness Ra measured in a direction at a right angle to a rolling direction during foil rolling, and B, which is the arithmetic mean roughness Ra measured in a direction parallel to the rolling direction during foil rolling, satisfy the following relationships: 0.15 μm≦A≦2.0 μm; 0.15 μm≦B≦2.0 μm; and 0.5≦B/A≦1.5. Preferably 50-1000 μg/m | 04-09-2015 |
20150099171 | ADHESION OF ACTIVE ELECTRODE MATERIALS TO METAL ELECTRODE SUBSTRATES - A battery electrode for a lithium ion battery that includes an electrically conductive substrate having an electrode layer applied thereto. The electrode layer includes an organic material having high alkalinity, or an organic material which can be dissolved in organic solvents, or an organic material having an imide group(s) and aminoacetal group(s), or an organic material that chelates with or bonds with a metal substrate or that chelates with or bonds with an active material in the electrode layer. The organic material may be guanidine carbonate. | 04-09-2015 |
20150104704 | ELECTRODE ASSEMBLY FOR SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Disclosed are an electrode assembly for secondary batteries and a lithium secondary battery including the same. More particularly, an electrode assembly including a cathode, an anode and a separator, wherein the cathode includes a lithium cobalt-based oxide, and a lithium nickel-based composite oxide forming a coating layer over a surface of the lithium nickel-based composite oxide by reacting with a fluorine-containing polymer, as a cathode active material, the anode includes carbon and a silicone oxide as an anode active material, an operating voltage is 2.50 V to 4.35 V, and the cathode active material has high rolling density by a bimodal form in which an average diameter of the cobalt-based oxide and an average diameter of the lithium nickel-based composite oxide are different, and a lithium secondary battery including the same are disclosed. | 04-16-2015 |
20150111101 | POWER STORAGE DEVICE ELECTRODE, METHOD FOR MANUFACTURING THE SAME, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE - To provide a highly reliable power storage device. To provide a long-life power storage device. To provide a power storage device electrode having high adhesion with a current collector. To reduce or inhibit electrochemical decomposition of an electrolytic solution or the like on a surface of an electrode. The power storage device electrode includes a current collector and a second electrode layer provided over the current collector and including a second binder and an active material. A first electrode layer including a first binder and conductive particles is provided between the current collector and the second electrode layer. At least part of a surface of the active material is provided with a coating film, and the coating film is porous. | 04-23-2015 |
20150118554 | GRAPHENE-CONTAINING ELECTROCHEMICAL DEVICE - A graphene-containing electrochemical device includes cathode/anode current collectors, cathode/anode active layers and a separator. The cathode/anode active layers are formed on the cathode/anode current collectors, and include a metal foil substrate and a graphene conductive layer. The graphene conductive layer includes several first graphene sheets and the polymer binder used to bind the first graphene sheets. The cathode/anode active layers include several second graphene sheets and cathode/anode active particles. The second graphene sheets and the cathode/anode active particles are bound by the polymer binder and further adhered to the graphene conductive layer. The second graphene sheets are blended among the cathode/anode active particles. The graphene conductive layer is employed to increase the compatibility between the cathode/anode active material and the metal foil substrate, and to reduce the junction resistance, thereby forming an integrated conductive network and improving the performance of the elements in the device. | 04-30-2015 |
20150118555 | ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY USING SAID ELECTRODE - An electrode of a lithium-ion secondary battery includes: an electrode film that contains a conductive auxiliary agent, a binder and an active material; and an electrode foil, on a surface of which the electrode film is formed. The conductive auxiliary agent is carbon nano-fibers and the carbon nano-fibers are contained in the range of 0.1 to 3.0% by mass relative to 100% by mass of the electrode film. Further, when using an organic solvent as a solvent, 1.0 to 8.0% by mass of the binder excluding the organic solvent is contained. The active material is made of a mixed powder of a coarse particle powder having an average particle size of 1 to 20 μm and a fine particle powder having an average particle size of ⅓ to 1/10 of an average particle size of the coarse particle powder, and the porosity of the electrode film is 10 to 30%. | 04-30-2015 |
20150118556 | BINDER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A binder composition for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. The binder composition includes lithium polyacrylate and a solvent and has a viscosity of about 500 cps to about 5000 cps. | 04-30-2015 |
20150125746 | NEGATIVE ELECTRODE SLURRY COMPOSITION, LITHIUM ION SECONDARY BATTERY NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY - Provided is a negative electrode slurry composition including a binder resin, a water-soluble polymer, and a negative electrode active material, wherein the binder resin including (A) a styrene-butadiene copolymer latex having a gel amount of 70 to 98% and a glass transition temperature of −30° C. to 60° C. in dynamic viscoelasticity measurement and (B) an acryl polymer latex having a gel amount of 70 to 98% and a glass transition temperature of −100° C. to 0° C. in dynamic viscoelasticity measurement, and the negative electrode active material including a carbon-based active material and a silicon-based active material. | 05-07-2015 |
20150125747 | BINDER SOLUTION FOR ANODE, ACTIVE MATERIAL SLURRY FOR ANODE COMPRISING THE BINDER SOLUTION, ANODE USING THE SLURRY AND ELECTROCHEMICAL DEVICE COMPRISING THE ANODE - The present disclosure relates to a binder solution for an anode, comprising a thermally cross-linkable polymer binder that is cross-linked by heat, and a solvent for dissolving the thermally cross-linkable polymer binder, and exhibiting a concentration of hydrogen ions corresponding to pH 2.5 to pH 4.5; an active material slurry for an anode, comprising the binder solution; an anode using the slurry; and an electrochemical device comprising the anode. The binder solution for an anode according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and also can provide good dispersibility to the active material slurry for an anode, thereby improving the coating stability of an anode active material layer. | 05-07-2015 |
20150132642 | LITHIUM CONTAINING NANOFIBERS - Lithium-containing nanofibers, as well as processes for making the same, are disclosed herein. In some embodiments described herein, using high throughput (e.g., gas assisted and/or water based) electrospinning processes produce nanofibers of high energy capacity materials with continuous lithium-containing matrices or discrete crystal domains. | 05-14-2015 |
20150132643 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery including a positive electrode, a negative electrode, an electrolytic solution, and a separator, in which the negative electrode includes a negative electrode active material layer formed from a slurry composition for a negative electrode which includes a binder composition for a negative electrode including a particulate polymer A containing an aliphatic conjugated diene monomer unit and a negative electrode active material. The positive electrode includes a positive electrode active material layer formed from a slurry composition for a positive electrode which includes a binder composition for a positive electrode including a particulate polymer B containing an ethylenically unsaturated carboxylic acid monomer unit, and a positive electrode active material. | 05-14-2015 |
20150132644 | NEGATIVE ELECTRODE SLURRY COMPOSITION, LITHIUM ION SECONDARY BATTERY NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY - Provided is a negative electrode slurry composition including a binder resin, a water-soluble polymer, and a negative electrode active material, wherein the binder resin including (A) a styrene-butadiene copolymer latex having a gel amount of 70 to 98% and having a glass transition temperature in dynamic viscoelasticity measurement with a single peak at −30° C. to 60° C. and (B) a polymer latex formed of a hetero-phase structure having a glass transition temperature in dynamic viscoelasticity measurement with at least one peak at −100° C. to 10° C. and having a glass transition temperature in dynamic viscoelasticity measurement with at least one peak at 10° C. to 100° C., and the negative electrode active material including a carbon-based active material and a silicon-based active material. | 05-14-2015 |
20150132645 | Negative Electrode Active Material for Nonaqueous Electrolyte Secondary Batteries - In order to propose a new negative electrode for nonaqueous electrolyte secondary batteries having excellent dispersibility even with a negative electrode active material having a relatively small particle size, there is proposed a negative electrode active material for nonaqueous electrolyte secondary batteries, the negative electrode active material containing silicon and having negative electrode active material particles that have a D50 based on a volume-based particle size distribution obtainable by measurement by a laser diffraction scattering type particle size distribution analysis method, of 0.1 μm to 5.0 μm, and include a surface layer containing oxygen, silicon and carbon on the entire surface or a portion of the active material surface. | 05-14-2015 |
20150132646 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY AND NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY USING SAME - The purpose of the invention is to obtain a negative electrode for a large-capacity nonaqueous electrolyte rechargeable battery having good cycle characteristics. In the present invention, a negative electrode for a nonaqueous electrolyte rechargeable battery is used as a solution, said negative electrode being characterized by having an active material layer on a current collector, said active material layer containing at least granules, and one or more types of coating binder comprising any of a polyimide, polybenzimidazole, polyamide-imide and polyamide. The negative electrode is further characterized in that the granules contain at least active material particles containing: at least one type of element selected from a group comprising Si, Sn, Al, Pb, Sb, Bi, Ge, In and Zn; and a granulation binder. | 05-14-2015 |
20150132647 | SLURRY COMPOSITION, ELECTRODE, ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD OF MANUFACTURING ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - [Problem] Provided is a slurry composition which has an excellent viscosity stability and thus, after being applied to a current collector for an electrode and drying, has an excellent adhesion with the current collector. | 05-14-2015 |
20150140424 | ACTIVE ELECTRODE MATERIAL COMPOSITION, ELECTRODE AND LITHIUM-ION SECONDARY BATTERY - Provided are an active electrode material composition for a lithium-ion secondary battery, an electrode for a lithium-ion secondary battery, and a lithium-ion secondary battery using the active electrode material composition. The active electrode material composition includes an active electrode material and a binder. The binder is characterized by existing in the form of a polyamide-amic acid compound in an electrode paste, and forming a polyamide-imide compound with excellent stability by means of high-temperature curing. The electrode paste is a water-based paste, which can avoid the use of an organic solvent in the electrode paste making process, and the obtained electrode has excellent structural stability and the battery performance is improved. | 05-21-2015 |
20150140425 | CATHODE MATERIAL COMPOSITION AND METHODS OF PREPARING AND APPLYING - A cathode material comprising an active material, a carbon material, a binder polymer, a lithium salt, and a solvent. The cathode material has a viscosity in the range from about from about 3.0 to about 30.0 cP such that the cathode material can be applied to a surface using an ink jet print head. An anode base material includes from about 50% to about 85% by weight of metallic lithium particles substantially free from other metals and from about 15% to about 50% by weight of a solvent. The anode base material has a viscosity such that the anode base material can be extruded. | 05-21-2015 |
20150147646 | CONDUCTIVE PRIMER COMPOSITIONS FOR A NON-AQUEOUS ELECTROLYTE ELECTRICAL ENERGY STORAGE DEVICE - A conductive coating composition for use in electrical energy storage devices, which contain a non-aqueous electrolyte, is provided comprising an organic polymeric binder comprising one or more water-soluble polymers; water; solid conductive particles dispersed in the binder; and phosphorus based acid bound to at least one of the water-soluble polymers and present in a range of 0.025-10.0% by weight of the water-soluble polymers, as well as methods of making and using said conductive coating composition, coated current collectors and electrical energy storage devices made therefrom. | 05-28-2015 |
20150147647 | COPPER DOPED SVO COMPOUNDS AS HIGH RATE CATHODE MATERIALS - The present invention related to an electrochemical cell comprising an anode of a Group IA metal and a cathode of a composite material prepared from a combination of vanadium oxide and either a copper or a silver oxide and the other of a copper or a silver nitrate. The cathode material of the present invention provides an increased gravimetric energy density over the cathode active materials of the prior art along with an increased pulse voltage delivery capacity. This makes the cathode material of the present invention particularly useful for implantable medical applications. | 05-28-2015 |
20150147648 | COATING LIQUID, COATING LIQUID FOR MANUFACTURING ELECTRODE PLATE, UNDERCOATING AGENT, AND USE THEREOF - This invention relates to a coating formulation, a coating formulation for manufacturing an electrode plate and an undercoating formulation, and their use. These coating formulations are all characterized by containing, in a polar solvent, a hydroxyl-containing resin and an organic acid and/or a derivative thereof. The hydroxyl-containing resin is at least one of (1) a polyvinyl acetal resin, (2) an ethylene-vinyl alcohol copolymer, (3) a modified and/or unmodified polyvinyl alcohol, and (4) a cyanoethyl-containing polymer. According to the present invention, there is provided a coating formulation capable of forming a coating of excellent adhesion and solvent resistance on a surface of a metal material such as an aluminum material. Also provided are a coating formulation for manufacturing an electrode plate for a battery or a polarizable electrode plate for a capacitor, in which an active material layer has excellent adhesion to a collector made of an aluminum foil, copper foil or the like and is also equipped with excellent electrolyte resistance and improved contact resistance to the collector, an undercoating formulation, the electrode plate and its manufacturing process, the battery, and the capacitor. | 05-28-2015 |
20150295228 | NEGATIVE ELECTRODE FOR ELECTRIC DEVICE AND ELECTRIC DEVICE USING THE SAME - The negative electrode for an electric device includes a current collector and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector, wherein the negative electrode active material contains an alloy represented by the following formula (1): Si | 10-15-2015 |
20150303450 | NEGATIVE ELECTRODE FOR ELECTRICAL DEVICE, AND ELECTRICAL DEVICE USING THE SAME - A negative electrode for an electrical device includes: a current collector, and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder, wherein the negative electrode active material contains an alloy represented by a following formula (1): Si | 10-22-2015 |
20150303456 | NEGATIVE ELECTRODE COMPOSITION, AND NEGATIVE ELECTRODE AND LITHIUM BATTERY CONTAINING THE SAME - Provided are a composition for a negative electrode, and a negative electrode and lithium battery including the composition. The composition includes a negative active material that contains one or more of a metal or a metalloid, an acrylate-based binder, and a guanidine carbonate. | 10-22-2015 |
20150303462 | Method For Producing An Electrode For A Lithium Accumulator And Associated Electrode - A method for producing an electrode comprising a core-shell nanocomposite material of which the core is made from silicon and the shell from carbon is provided. The method includes A) synthesising the nanocomposite material by pyrolysing a silicon core to form a core and then pyrolysing a carbon shell precursor to form a carbon shell around the core, wherein the quantities of silicon and carbon precursor are injected in a proportion such that the mass percentage of carbon in the nanocomposite material is greater than or equal to 45%; B) dispersing the nanocomposite material synthesised in step A) in a solvent to form an ink; C) applying this ink to a support intended to form an electricity collector; D) eliminating the solvent from the ink applied to the support in step C) to obtain the electrode; E) pressing or calendaring the electrode. | 10-22-2015 |
20150303465 | NEGATIVE ELECTRODE FOR ELECTRIC DEVICE AND ELECTRIC DEVICE USING THE SAME - The negative electrode for an electric device includes a current collector and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector, wherein the negative electrode active material contains an alloy represented by the following formula (1): Si | 10-22-2015 |
20150303478 | ELECTRODE PLATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME, AND METHOD FOR MANUFACTURING THE SAME - An electrode active material layer containing an electrode active material and a binder. The electrode active material layer includes a portion containing the smallest amount of the binder in a middle region across the thickness of the electrode active material layer. The binder is distributed in the electrode active material layer such that the amount of the binder increases continuously from the portion toward the core and an outer surface of the electrode active material layer. Preferably, the amount of the binder present in the electrode active material layer per unit thickness is limited to more than 10 in a region extending 10% of the thickness from the outer surface of the electrode active material layer, with 10 being assigned to the amount of the binder present in the electrode active material layer per unit thickness if the binder is uniformly distributed. | 10-22-2015 |
20150303479 | ANODE BINDER FOR SECONDARY BATTERY, ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed herein are an anode binder for secondary batteries, an electrode for secondary batteries, and a secondary battery including the same. The anode binder for secondary batteries includes an alginate, wherein the alginate is a copolymer including a D-mannuronate block and an L-guluronate block, and the alginate satisfies Equation 1: | 10-22-2015 |
20150303480 | POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION METHOD THEREOF - Provided is a method for producing a positive electrode for a nonaqueous electrolyte secondary battery having superior electrical conductivity with high productivity. The production method disclosed herein includes the following steps: a first kneading step (S | 10-22-2015 |
20150303481 | DRY ENERGY STORAGE DEVICE ELECTRODE AND METHODS OF MAKING THE SAME - An energy storage device can include a cathode and an anode, where at least one of the cathode and the anode are made of a polytetrafluoroethylene (PTFE) composite binder material including PTFE and at least one of polyvinylidene fluoride (PVDF), a PVDF co-polymer, and poly(ethylene oxide) (PEO). The energy storage device can be a lithium ion battery, a lithium ion capacitor, and/or any other lithium based energy storage device. The PTFE composite binder material can have a ratio of about 1:1 of PTFE to a non-PTFE component, such a PVDF, PVDF co-polymer and/or PEO. | 10-22-2015 |
20150311001 | CURRENT COLLECTOR, ELECTRODE STRUCTURE, AND ELECTRICAL STORAGE DEVICE - A current collector which can achieve both of the improvement in battery characteristics by reducing the initial (at ambient temperature) interface resistance and the improvement in safety by the PTC function, when the current collector is used for the electrode structure of electrical storage devices such as non-aqueous electrolyte batteries, electrical double layer capacitors, and lithium ion capacitors; electrode structures; electrical storage devices; and composition for current collectors; are provided. A current collector, including: a conductive substrate | 10-29-2015 |
20150311489 | ANODE STRUCTURE OF LITHIUM SULFUR BATTERY - An anode structure of a lithium sulfur battery includes a sulfur anode laminated on an aluminum foil, and a carbon coating layer disposed between the sulfur anode and a carbon structure layer in which sulfur is immersed. The sulfur anode includes thesulfur, a conductor, and a binder. The carbon structure layer in which sulfur is immersed is a polyester (PE) separation membrane separated from a counter electrode. A loaded amount of sulfur within the anode structure is dispersed to the sulfur anode and the carbon structure layer in which the sulfur is immersed. | 10-29-2015 |
20150311500 | NEGATIVE ELECTRODE FOR ELECTRIC DEVICE AND ELECTRIC DEVICE USING THE SAME - The negative electrode for an electric device includes a current collector and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector, wherein the negative electrode active material contains an alloy represented by the following formula (1): Si | 10-29-2015 |
20150311504 | HIGH CAPACITY ELECTRODES - An electrode comprises carbon nanoparticles and at least one of metal particles, metal oxide particles, metalloid particles and/or metalloid oxide particles. A surfactant attaches the carbon nanoparticles and the metal particles, metal oxide particles, metalloid particles and/or metalloid oxide particles to form an electrode composition. A binder binds the electrode composition such that it can be formed into a film or membrane. The electrode has a specific capacity of at least 450 mAh/g of active material when cycled at a charge/discharge rate of about 0.1C. | 10-29-2015 |
20150311525 | BATTERY CELL ENGINEERING AND DESIGN TO REACH HIGH ENERGY - Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge. | 10-29-2015 |
20150318536 | PRODUCTION OF A MATERIAL BASED ON LI4TI5O12 WITH MILLING IN THE PRESENCE OF CARBON - A process for producing a material based on Li | 11-05-2015 |
20150318539 | ELECTRODE FABRICATION METHODS AND ASSOCIATED SYSTEMS AND ARTICLES - Sulfur-based electrodes, and associated systems and methods for their fabrication, are generally described. Certain embodiments relate to sulfur-based electrodes with smooth external surfaces. According to some embodiments, relatively large forces can be applied to compositions from which the sulfur-based electrodes are made during the fabrication process. In some such embodiments, the compositions can maintain relatively high porosities, even after the relatively large forces have been applied to them. Methods in which liquids are employed during the electrode fabrication process are also described. | 11-05-2015 |
20150325846 | ELECTRODE MATERIAL - An electrode material includes an aggregate which is formed by aggregating electrode active material particles having a carbonaceous film forced on the surface thereof, in which a volume density of the aggregate is 50% by volume or more and 80% by volume or less of the volume density of a solid body which has the same external appearance as the aggregate, a coverage ratio of the carbonaceous film with respect to the surface of the electrode active material particles is 80% or more, and an average thickness of the carbonaceous film is 1.0 nm or more and 7.0 nm or less. | 11-12-2015 |
20150332805 | ELECTRODE COMPOSITIONS AND ENERGY STORAGE DEVICES - In a first aspect, an electrode composition includes an electroactive material and an interpolymer including polymer units derived from about 64 to about 75 mole percent vinyl fluoride and from about 25 to about 36 mole percent of at least two highly fluorinated monomers. A first highly fluorinated monomer provides the interpolymer a side chain of at least one carbon atom. | 11-19-2015 |
20150333315 | NEGATIVE ELECTRODE AND LITHIUM BATTERY INCLUDING THE SAME - A negative electrode for a lithium battery includes a current collector and a negative active material layer on at least one surface of the current collector. The negative active material layer includes a metal nanoparticle, a carbonaceous material, and a titanium-containing oxide. The density of the negative active material layer is greater than 1.5 g/cc and less than 3 g/cc. | 11-19-2015 |
20150333332 | LITHIUM POWDER ANODE - A lithium anode containing spherical lithium metal particles with an average diameter of between 5 and 200 μm, which are bonded with a fluorine-free rubber-like binding agent from the groups
| 11-19-2015 |
20150340694 | ANODE AND SECONDARY BATTERY - A secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer containing a carbon material and a lithium-containing compound (Li | 11-26-2015 |
20150357644 | ELECTRODE MATERIALS WITH MIXED PARTICLE SIZES - The present invention is directed to electrochemical devices and materials thereof. More specifically, embodiments set forth herein provide a low-porosity electrode that includes large particles and small particles. The large particles include electrochemically active material. The small particles include ion conductive electrolyte materials. In some examples, the large particles and small particles are characterized by a dispersity of no higher than 0.5. There are other embodiments as well. | 12-10-2015 |
20150357648 | SLURRY FOR LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODES - To provide a slurry for positive electrodes having excellent weight accuracy at the time of application, which enables the production of a lithium ion secondary battery that has high capacity and excellent cycle characteristics at high potentials, said lithium ion secondary battery being flexible and free from the occurrence of cracks in an active material layer when bent. | 12-10-2015 |
20150357671 | STACK-FOLDING TYPE ELECTRODE ASSEMBLY - The present disclosure provides a stack-folding type electrode assembly in which a plurality of full cells or bicells as unit cells is stacked on top of each other and surrounded by a second separator, each cell including a positive electrode, a negative electrode, and a first separator interposed between the positive electrode and the negative electrode, wherein a first binder is coated on at least a partial surface of the first separator, a second binder is coated on at least a partial surface of the second separator, and a content of the second binder is higher than a content of the first binder, to inhibit a loose phenomenon inside a battery, make the battery less prone to expansion, and have deformation resistance to an external impact. | 12-10-2015 |
20150364755 | Silicon Oxide (SiO) Anode Enabled by a Conductive Polymer Binder and Performance Enhancement by Stabilized Lithium Metal Power (SLMP) - Silicon alloys have the highest specific capacity when used as anode material for lithium-ion batteries, however, the drastic volume change inherent in their use causes formidable challenges toward achieving stable cycling performance. Large quantities of binders and conductive additives are typically necessary to maintain good cell performance. In one embodiment of the invention, only 2% (by weight) functional conductive polymer binder without any conductive additives was successfully used with a micron-size silicon monoxide (SiO) anode material, demonstrating stable and high gravimetric capacity (>1000 mAh/g) for ˜500 cycles and more than 90% capacity retention. Prelithiation of this anode using stabilized lithium metal powder (SLMP®) improves the first cycle Coulombic efficiency of a SiO/NMC full cell from ˜48% to ˜90%. This combination enables good capacity retention of more than 80% after 100 cycles at C/3 in a lithium-ion full cell. | 12-17-2015 |
20150372285 | Metal Hydride Battery Electrodes - Rechargeable metal hydride alkaline cells are provided improved cycle life, lower internal resistance and enhanced utilization of energy by employing a positive electrode prepared by a method comprising applying a paste comprising an active positive electrode composition to a conductive substrate and exposing the pasted electrode to elevated temperature for a desired time period. The electrode composition comprises a particulate positive electrode active material, a polymeric binder and optionally one or more additives. The electrode active material is for instance nickel hydroxide or modified nickel hydroxide. In the case of a nickel foam substrate, the electrode composition may contain no binder. | 12-24-2015 |
20150372306 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - It is an object to improve the initial charge-discharge efficiency of a nonaqueous electrolyte secondary battery that uses, as negative electrode active materials, a carbon material and a metal or metal oxide that forms an alloy with lithium. There is provided a nonaqueous electrolyte secondary battery including a positive electrode, a nonaqueous electrolyte, and a negative electrode which includes, as negative electrode active materials, a carbon material and a metal or metal oxide that forms an alloy with lithium and in which at least part of a surface of the carbon material is coated with a polymer material that does not react with lithium. The mass percentage of the polymer material that does not react with lithium relative to the carbon material is preferably 0.5 to 2 mass %. | 12-24-2015 |
20150372307 | ELECTRODE FOR LITHIUM BATTERY AND PRODUCTION PROCESS THEREOF, AND LITHIUM BATTERY - Provided are an electrode for a lithium battery that is capable of providing a lithium battery having both high stability and high battery properties; a process for producing an electrode for a lithium battery, in which a positive electrode plate and/or a negative electrode plate, even when coated with a thermal activation material dissolved in an organic solvent such as a pyrrolidone-based solvent, is prevented from swelling; and a lithium battery including said electrode for a lithium battery. The electrode for a lithium battery includes an electrode plate, a mix layer and a heat insulating layer in this order, wherein the mix layer includes at least an aqueous adhesive and an active material; the heat insulating layer includes at least a thermal activation material; and at least part of the mix layer is in contact with at least part of the heat insulating layer. | 12-24-2015 |
20150380704 | ELECTRICITY SUPPLY ELEMENT AND CERAMIC SEPARATOR THEREOF - An electricity supply element and the ceramic separator thereof are provided. The ceramic separator is adapted to separate two electrode layers of the electricity supply element for permitting ion migration and electrical separation. The ceramic separator is made of ceramic particulates and the adhesive. The adhesive employs dual binder system, which includes linear polymer and cross-linking polymer. The adhesion and heat tolerance are enhanced by the characteristic of the two type of polymers. The respective position of the two electrode layers are maintained during high operation temperature to improve the stability, and battery performance. Also, the ceramic separator enhances the ion conductivity and reduces the possibility of the micro-short to increase practical utilization. | 12-31-2015 |
20150380719 | METHOD OF PREPARING ANODE OF LITHIUM ION BATTERIES OR ELECTRODE PLATE OF SUPERCAPACITOR - A method of preparing an anode of lithium ion batteries or an electrode plate of a supercapacitor. The method includes admixing a terpene resin-based aqueous binder. The terpene resin-based aqueous binder includes a terpene resin emulsion including between 20 and 80 wt. % of a terpene resin, and the terpene resin emulsion has a viscosity of between 2000 and 10000 mPa·s. | 12-31-2015 |
20150380723 | ACTIVE CATHODE MATERIAL AND ITS USE IN RECHARGEABLE ELECTROCHEMICAL CELLS - The present invention relates to an active cathode material of the general formula (I) M | 12-31-2015 |
20150380739 | NEGATIVE ELECTRODE PLATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME - A negative electrode plate according to an embodiment of the present disclosure includes a negative electrode collector and a negative electrode mixture layer disposed on the negative electrode collector. The negative electrode mixture layer contains a negative active material, a first binding material having a Tg of 10° C. to 60° C., and a second binding material having a Tg of 0° C. or less. When the negative electrode mixture layer is divided into two equal parts at the center in the thickness direction, a negative electrode mixture layer (a) is one half on the negative electrode collector side of the negative electrode mixture layer and contains the first binding material, and a negative electrode mixture layer (b) is the other half on the surface side of the negative electrode mixture layer and contains the second binding material. A and B satisfy a relationship: 0.04≦B/(A+B)<0.5 where the A is a content of the first and second binding materials relative to the mass of the negative active material in the negative electrode mixture layer (a) and the B is a content of the first and second binding materials relative to the mass of the negative active material in the negative electrode mixture layer (b). | 12-31-2015 |
20160005551 | 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. | 01-07-2016 |
20160020466 | CARBON NANOTUBE-CONTAINING DISPERSION AND THE USE THEREOF IN THE PRODUCTION OF ELECTRODES - The invention relates to a dispersion comprising a dispersion medium, a polymeric dispersing agent, and carbon nanotubes dispersed in the dispersion medium. The proportion of carbon nanotubes present in the form of agglomerates with an average agglomerate size of >=1 [mu]m to the total quantity of carbon nanotubes <=10 vol %, and >=70% of the carbon nanotubes which are not present in the agglomerated form have a length of >=200 nm. the invention further relates to a method for producing such a dispersion, to a method for producing an electrode with the dispersion, to an electrode obtained in this manner, and to an electrochemical element containing the electrode. | 01-21-2016 |
20160028086 | Anode for Sodium-ion and Potassium-ion Batteries - A first method for fabricating an anode for use in sodium-ion and potassium-ion batteries includes mixing a conductive carbon material having a low surface area, a hard carbon material, and a binder material. A carbon-composite material is thus formed and coated on a conductive substrate. A second method for fabricating an anode for use in sodium-ion and potassium-ion batteries mixes a metal-containing material, a hard carbon material, and binder material. A carbon-composite material is thus formed and coated on a conductive substrate. A third method for fabricating an anode for use in sodium-ion and potassium-ion batteries provides a hard carbon material having a pyrolyzed polymer coating that is mixed with a binder material to form a carbon-composite material, which is coated on a conductive substrate. Descriptions of the anodes and batteries formed by the above-described methods are also provided. | 01-28-2016 |
20160028087 | BINDER COMPOSITION FOR SECONDARY BATTERY, SLURRY COMPOSITION FOR SECONDARY BATTERY, NEGATIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY - A binder composition for a secondary battery includes: a water-soluble thickener (A) having a hydroxy group or a carboxy group; a cross-linking agent (B) having a functional group reacting with the hydroxy group or the carboxy group of the water-soluble thickener (A); and a particulate polymer (C). The particulate polymer (C) has a functional group reacting with the cross-linking agent (B) and includes an aliphatic conjugated diene monomer unit and an aromatic vinyl monomer unit. The binder composition contains 0.001 part by mass or more and less than 100 parts by mass of the cross-linking agent (B) and 10 parts by mass or more and less than 500 parts by mass of the particulate polymer (C), each per 100 parts by mass of the water-soluble thickener (A). | 01-28-2016 |
20160036055 | SLURRY COMPOSITION FOR NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY - A slurry composition includes a negative electrode active material, a particulate binder, a water soluble polymer, and water. The particulate binder includes a first particulate binder and a second particulate binder. The first particulate binder includes a copolymer (A) including an aliphatic conjugated diene monomer unit and an aromatic vinyl monomer unit, has a degree of swelling in electrolysis solution of 110% to 200% by mass, has a glass transition temperature of −30° C. to 60° C., and has a gel content of 70% to 98% by mass. The second particulate binder includes a copolymer (B) including an aliphatic conjugated diene monomer unit and an aromatic vinyl monomer unit, has a degree of swelling in electrolysis solution of 250% to 600% by mass, and has a gel content of 70% to 98% by mass. | 02-04-2016 |
20160036056 | BINDER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A binder composition for a rechargeable lithium battery includes: an interpenetrating polymer network (IPN) structure including a cyclic polymer including a structural unit represented by Chemical Formula 1 or a structural unit represented by Chemical Formula 2, and polyacrylamide. A method of preparing the same, and an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are also disclosed. | 02-04-2016 |
20160042878 | CURRENT COLLECTOR, ELECTRODE STRUCTURE, BATTERY AND CAPACITOR - A current collector with high safety which can realize both of a superior conductivity at normal temperature conditions and a superior shut down function at high temperature conditions, is provided. | 02-11-2016 |
20160049217 | SEAL-HEALING COMPOSITES AND APPLICATIONS THEREOF - A battery electrode includes an electrochemically active material and a binder covering the electrochemically active material. The binder includes a self-healing polymer and conductive additives dispersed in the self-healing polymer to provide an electrical pathway across at least a portion of the binder. | 02-18-2016 |
20160049660 | POLYMER, BINDER AND NEGATIVE ELECTRODE INCLUDING THE POLYMER, AND LITHIUM BATTERY INCLUDING THE NEGATIVE ELECTRODE - A polymer including a first repeating unit including at least one carboxyl group substituted with a cation and a second repeating unit including at least one carboxyl group substituted with a moiety containing a dihydroxyphenyl group. | 02-18-2016 |
20160056465 | PROCESS FOR PRODUCING CARBON PARTICLES FOR ELECTRODE, CARBON PARTICLES FOR ELECTRODE, AND NEGATIVE-ELECTRODE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY - Provided is a method of producing carbon particles for an electrode, each containing particles of a metal capable of forming an alloy with lithium, being formed by an aggregation of numerous fine particles composed of carbon, and having a hollow open-cell structure in which cells among the fine particles form a plurality of interconnected pores. The method includes mixing together a monomer having a low compatibility with a polymer to be formed, an organic solvent having a low compatibility with the polymer to be formed, and particles of a metal capable of forming an alloy with lithium, to prepare a monomer-containing mixture; dispersing the monomer-containing mixture in an aqueous phase to prepare a suspension containing, dispersed therein, oil droplets of the monomer-containing mixture; polymerizing the oil droplets in the suspension to prepare resin particles; and curing the resin particles. The carbon particles find use for negative-electrode in lithium-ion secondary batteries. | 02-25-2016 |
20160056467 | Alkali-Ion Battery with Enhanced Transition Metal Cyanometallate Electrode Structure - An alkali-ion battery is provided with a transition metal cyanometallate (TMCM) sheet cathode and a non-alkaline metal anode. The fabrication method mixes TMCM powders, conductive additives, and a polytetrafluoroethylene binder with a solution containing water, forming a wet paste. The wet paste is formed into a free-standing sheet of cathode active material, which is laminated to a cathode current collector, forming a cathode electrode. The free-standing sheet of cathode active material has a thickness typically in the range of 100 microns to 2 millimeters. The cathode electrode is assembled with a non-alkaline metal anode electrode and an ion-permeable membrane interposed between the cathode electrode and anode electrode, forming an assembly. The assembly is dried at a temperature of greater than 100 degrees C. The dried assembly is then inserted into a container (case) and electrolyte is added. Thick anodes made from free-standing sheets of active material can be similarly formed. | 02-25-2016 |
20160056470 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a means capable of improving wettability of positive and negative electrode active material layers by having the ratio of the liquid absorption speed of an electrolyte to the positive and negative electrode active material layers in an appropriate range when an aqueous binder is used in the negative electrode active material layer. The non-aqueous electrolyte secondary battery has a power generating element having a positive electrode active material layer on a surface of a positive electrode current collector, a negative electrode active material layer containing an aqueous binder on a surface of a negative electrode current collector, and a separator, and Tc/Ta is in the range of 0.6 to 1.3 when Tc is the soak-in time of the electrolyte liquid into the positive electrode active material layer and Ta is the soak-in time of the electrolyte liquid into the negative electrode active material layer. | 02-25-2016 |
20160056471 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery comprising a negative electrode plate including a negative electrode collector and a negative electrode mix layer which is placed on the negative electrode collector and which contains a negative electrode active material, a binder A containing a rubber polymer compound as a binder, and a binder B containing a water-soluble polymer compound. The negative electrode mix layer has a cross section in a thickness direction thereof, the cross section being halved into a collector-side region and a surface-side region. The sum of the perimeters of the negative electrode active material per unit area in the cross section is more distributed in the collector-side region than in the surface-side region. The binder A is more distributed in the collector-side region than in the surface-side region. | 02-25-2016 |
20160056475 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - There are provided a negative electrode for a nonaqueous electrolyte secondary battery having excellent initial efficiency and good moldability of pillar portions included in a negative electrode mixture layer, and a nonaqueous electrolyte secondary battery. A negative electrode ( | 02-25-2016 |
20160072123 | Conductive Coatings for Active Electrochemical Materials - A method for producing a coated powder including homogeneously mixing an electrochemically active material including electrochemically active particles with nanosize particles in a ratio determined by the surface area of the electrochemically active particles to form a homogeneous powder, adding a polymer and mixing to form a homogeneous solid mixture, adding a solvent to dissolve the polymer and form a viscous slurry, mixing the viscous slurry, and drying the viscous slurry to cause the nanosize particles to become localized adjacent to an outer surface of the electrochemically active particles with the polymer maintaining the proximity between the nanosize conductive particles and the outer surface of the electrochemically active particles. | 03-10-2016 |
20160087278 | NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY PACK - A negative electrode material for a nonaqueous electrolyte secondary battery of the embodiment include a granular composite product that includes: an organic resin composition; a metal dispersed in the organic resin composition or a metal and an oxide of the metal dispersed in the organic resin composition; an electroconductive carbonaceous material, wherein an elemental ratio A/B (mass/mass) of carbon (A) and hydrogen (B) is 1 or lower. | 03-24-2016 |
20160093876 | LixMn2O4-y(Clz) SPINEL CATHODE MATERIAL, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM AND LI-ION ELECTROCHEMICAL SYSTEMS CONTAINING THE SAME - A method of preparing a homogeneously dispersed chlorine-modified lithium manganese-based AB | 03-31-2016 |
20160093880 | METHOD FOR MANUFACTURING ELECTRODE AND ELECTRODE MANUFACTURED BY THE SAME - Disclosed is a method for manufacturing an electrode, which comprises drying an electrode sheet including a current collector and an electrode active material slurry coated to the current collector and containing an electrode active material, a binder and a solvent, wherein the electrode sheet is dried by a mid-infrared lamp which irradiates mid-infrared rays with a wavelength of 1 μm to 3 μm to the electrode sheet, and a surface temperature of the electrode sheet has a constant region in the range of 50° C. to 70° C. Since an electrode is dried by using a mid-infrared lamp, the electrode may be uniformly dried, and an adhesion force between the electrode active material layer and the current collector may be greatly improved, which allows great enhancement of characteristics of a battery to which the electrode is applied. | 03-31-2016 |
20160099470 | ELECTRODE HAVING ENHANCED ADHESION FOR LITHIUM SECONDARY BATTERIES - Disclosed is an electrode for secondary batteries including an electrode mix, which includes an electrode active material and a binder, coated on a current collector. More particularly, the electrode includes a first electrode mix layer including a first binder, a glass transition temperature (Tg) of which is lower than that of a second binder, and an electrode active material, and coated on the current collector; and a second electrode mix layer including the second binder, a glass transition temperature (Tg) of which is higher than that of the first binder, and an electrode active material, and coated on the first electrode mix layer. | 04-07-2016 |
20160099483 | ELECTRODE HAVING A DUAL LAYER STRUCTURE, METHOD FOR MANUFACTURING THEREOF, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - The present invention relates to an electrode having a dual layer structure, a method for manufacturing the same, and a lithium secondary battery comprising the same, the electrode comprising: an electrode current collector; a middle layer formed on at least one side of the electrode current collector; and an electrode active material layer formed on the middle layer, wherein the middle layer comprises a first binder, wherein the electrode active material layer comprises an electrode active material and a second binder, and wherein the first binder and the second binder are the same kind of material but have different crystalline phases. | 04-07-2016 |
20160104880 | RAPID CHARGE LITHIUM-ION BATTERY - A rapid charge lithium-ion battery comprises a positive plate, a negative plate, a separator disposed at intervals between the positive plate and the negative plate, and an electrolyte. The positive plate includes a positive current collector and a positive active material layer disposed on a surface of the positive current collector; the positive active material layer includes a positive active material, a positive conductive agent and a positive adhesive; the positive active material includes a component A and a component B; the component A is selected from at least one of lithium nickel cobalt aluminum oxide (NCA), lithium nickel cobalt manganese oxide (NCM), lithium manganese oxide (LMO) and lithium cobalt oxide (LiCoO | 04-14-2016 |
20160111713 | POSITIVE ELECTRODE MIXTURE PASTE, POSITIVE ELECTRODE, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND MANUFACTURING METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a positive electrode mixture paste manufacturing step, a positive electrode mixture paste is manufactured by further mixing an acid compound, in addition to a positive-electrode active material, a conductive material, a binder, lithium phosphate, and a solvent. | 04-21-2016 |
20160118663 | SLURRY COMPOSITION FOR POSITIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY, METHOD OF PRODUCING POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - The disclosed aqueous slurry composition for the positive electrode of a lithium ion secondary battery achieves suppression of both the generation of pin holes and the occurrence of bulging along the edge portion of a positive electrode mixed material layer. This slurry composition for a positive electrode of a lithium ion secondary battery includes a positive electrode active material, a conductive material, a water-soluble polymer, a particulate binder, a surfactant, and water. The water-soluble polymer contains a monomer unit containing an acid group, viscosity of a 1% by mass water solution of the water-soluble polymer is 1 mPa·s or greater to 1,000 mPa·s or less, and the surfactant includes a sulfosuccinic acid ester or a salt thereof. | 04-28-2016 |
20160118664 | SLURRY COMPOSITION FOR SECONDARY-BATTERY NEGATIVE ELECTRODE, SECONDARY-BATTERY NEGATIVE ELECTRODE, AND SECONDARY BATTERY - The disclosed slurry composition for a secondary-battery negative electrode includes a water-soluble thickener (A) having a hydroxy group or a carboxyl group, a cross-linking agent (B) having a functional group reactive with the hydroxy group or the carboxyl group, a particulate polymer (C) having a functional group reactive with the cross-linking agent (B), a negative electrode active material containing a non-carbon-based negative electrode active material, and water. The slurry composition contains 0.5 to 20 mass parts of the water-soluble thickener (A), 0.001 to 10 mass parts of the cross-linking agent (B), and 0.5 to 20 mass parts of the particulate polymer (C), per 100 mass parts of the negative electrode active material. | 04-28-2016 |
20160118665 | 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. | 04-28-2016 |
20160126544 | HIGH CAPACITY ELECTROACTIVE PARTICLES, AND ELECTRODES AND BATTERIES COMPRISING THE SAME - Provided herein is a coated electroactive particle, comprising i) a core comprising one or more electroactive materials, and optionally a binder; and ii) a polymeric overcoating on the surface of the core. Also provided herein is a coated electroactive particle, comprising i) a core that comprises an electroactive subparticle, an agglomerated particle comprising at least two electroactive subparticles and optionally a binder, or an agglomerated particle comprising at least one electroactive subparticle, at least one diluent subparticle, and optionally a binder; and ii) a polymeric overcoating on the surface of the core. | 05-05-2016 |
20160126551 | BINDER COMPOSITION FOR LITHIUM ION SECONDARY BATTERY ELECTRODES, SLURRY COMPOSITION FOR LITHIUM ION SECONDARY BATTERY ELECTRODES, ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY - A binder composition for a lithium ion secondary battery electrode, including a particulate polymer and a water-soluble polymer, wherein the water-soluble polymer includes an ethylenically unsaturated carboxylic acid monomer unit in an amount of 20% by weight to 85% by weight, a carboxylic acid amide monomer unit in an amount of 0.1% by weight to 10% by weight, and a crosslinkable monomer unit in an amount of 0.1% by weight to 2.0% by weight. | 05-05-2016 |
20160126553 | BINDER COMPOSITION FOR POSITIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY, SLURRY COMPOSITION FOR POSITIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME, METHOD OF PRODUCING POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - The disclosed binder composition for the positive electrode of a lithium ion secondary battery includes a binder and an organic dispersion medium, a weight-average molecular weight of the binder being from 100,000 to 2,000,000, and the binder containing 10% to 35% by mass of an ethylenically unsaturated monomer unit containing an acid group, and includes 0.6 to 1.5 equivalents of lithium with respect to the acid group. The disclosed slurry composition for the positive electrode of a lithium ion secondary battery includes this binder composition, a positive electrode active material, and a conductive material. | 05-05-2016 |
20160133940 | ELECTRODE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Disclosed is an electrode including a current collector having a functional group or a radical binding with an electrode material on a surface thereof, and an electrode mixture layer formed on the current collector. | 05-12-2016 |
20160141626 | NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY USING THE SAME - A negative electrode for a lithium ion secondary battery, which has high energy density and which can suppress a crease (form change) of a negative electrode active material layer and a negative electrode current collector caused by the expansion and contraction occurring along with the quick charging and discharging and also suppress the falloff of the negative electrode active material layer after the quick charging and discharging cycle, and a lithium ion secondary battery using the negative electrode. The negative electrode for a lithium ion secondary battery and the lithium ion secondary battery include: a negative electrode active material including 5% or more of silicon or silicon oxide; a binder that is polyacrylate whose carboxylic groups at terminals of side chains of polyacrylic acid are cross-linked with magnesium or alkaline earth metal; and a negative electrode current collector. | 05-19-2016 |
20160149209 | ELECTRODE COATED WITH INORGANIC LAYER, MANUFACTURING METHOD THEREOF AND RECHARGEABLE BATTERY THEREWITH - An electrode coated with an inorganic layer having improved dispersibility and phase stability includes an electrode layer, and an inorganic layer coated on a surface of the electrode layer, wherein the inorganic layer includes inorganic particles and an organic acrylic-based binder. A manufacturing method of the electrode and a rechargeable battery including the electrode are also described. | 05-26-2016 |
20160149212 | ANODE FOR HIGH-ENERGY BATTERIES - Anode comprising an anode material, a protective material and a current collector is provided. The anode material is a mixture comprising an active material, at least one electronically conductive agent and at least one binder. The active material may be an alloy of silicon and lithium or an alloy of silicon oxide and lithium. There is provided a process for the preparation of the anode. Also, there is provided use of the anode in the fabrication of a battery. | 05-26-2016 |
20160149222 | NEGATIVE ELECTRODE, NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE NEGATIVE ELECTRODE, AND LITHIUM BATTERY INCLUDING THE NEGATIVE ELECTRODE - A negative electrode including: a current collector; a negative active material layer formed on the current collector; and a polymer coating layer that is formed on the negative active material layer and comprises a fluorinated acrylate type polymer. | 05-26-2016 |
20160156035 | COMPOSITE MATERIAL, NEGATIVE ELECTRODE, AND SODIUM SECONDARY BATTERY | 06-02-2016 |
20160156038 | BINDER FOR SECONDARY BATTERIES AND SECONDARY BATTERY INCLUDING THE SAME | 06-02-2016 |
20160156039 | BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE | 06-02-2016 |
20160164078 | LITHIUM SECONDARY BATTERY HAVING IMPROVED SAFETY AND STABILITY - Disclosed is an electrode active material including a core formed from one selected from the group consisting of lithium-containing transition metal oxide, a carbon material, a lithium metal, and a metal compound, or mixtures thereof, and a shell formed on a surface of the core and including lithium metal oxide particles and polymer, and a lithium secondary battery using the same. | 06-09-2016 |
20160164097 | Anode Mixture for Lithium Secondary Battery, Anode for Lithium Secondary Battery and Lithium Secondary Battery Using the Same - Disclosed are an anode mixture including an anode active material, a binder and a metal oxide filler having a particle diameter of 200 nm to 200 μm, which can provide a high-density anode with improved electrolyte impregnation property in an electrode, excellent cycle property and high-temperature storage property, and high capacity density per volume, as well as an anode for a lithium secondary battery, and a lithium secondary battery using the same. | 06-09-2016 |
20160164099 | ELASTIC GEL POLYMER BINDER FOR SILICON-BASED ANODE - An anode for use in a lithium-ion battery consists of a polymeric gel binder made of at least two polymers having carboxylic acid groups and silicon particles. The polymers are chemically cross-linked to form a polymer network, and covalent ester bonds are formed between the polymer network and the silicon particles. | 06-09-2016 |
20160164100 | BINDER COMPOSITION FOR SECONDARY BATTERY, CATHODE AND LITHIUM BATTERY INCLUDING THE BINDER COMPOSITION - In an aspect, a binder composition for a secondary battery including a first fluoropolymer binder including a tetrafluoroethylene polymer binder, a second fluoropolymer binder including a vinylidene fluoride binder, and a non fluoropolymer binder is provided. | 06-09-2016 |
20160172678 | BINDER FOR NON-AQUEOUS ELECTRICITY STORAGE ELEMENT, AND NON-AQUEOUS ELECTRICITY STORAGE ELEMENT | 06-16-2016 |
20160172679 | POSITIVE ELECTRODE COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, AND POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME | 06-16-2016 |
20160190548 | COMPOSITE ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM SECONDARY BATTERY INCLUDING THE COMPOSITE ANODE ACTIVE MATERIAL - A composite anode active material including: a silicon material and a coating layer formed on at least a portion of a surface of the silicon material, wherein the coating layer is chemically bonded to the silicon material, and wherein the coating layer includes a hydrosilylation product of a C4-C30 alkene having a terminal —C(═O)OR group, wherein R is a hydrogen, a C1-C5 alkyl group, a C2-C6 heteroalkyl group, a C6-C12 aryl group, or a C7-C13 arylalkyl group, each of which except hydrogen is substituted or unsubstituted. | 06-30-2016 |
20160190555 | POSITIVE ACTIVE MATERIAL, MANUFACTURING METHOD THEREOF, AND POSITIVE ELECTRODE AND LITHIUM BATTERY INCLUDING THE MATERIAL - A positive active material including: a core including an overlithiated lithium transition metal oxide, and a coating layer which is disposed on at least a portion of a surface of the core, the coating layer including a polymer having an oxidation potential of about 4.4 volts to about 4.7 volts versus lithium metal. Also a manufacturing method thereof, and a positive electrode and a lithium battery including the positive active material. | 06-30-2016 |
20160190591 | LITHIUM-ION SECONDARY BATTERY AND PREPARATION METHOD THEREOF - The present application discloses a lithium-ion secondary battery. By using an adhesive containing an active group in a positive electrode and/or a negative electrode, and using a coupling agent solution containing an amino or epoxy group to treat the surface of a separator, an interface between the separator and an electrode react chemically to be connected with a covalent bond, thus improving the deformation of the lithium-ion secondary battery during a cycle. | 06-30-2016 |
20160190592 | ELECTRODE, POWER STORAGE DEVICE, ELECTRONIC DEVICE, AND MANUFACTURING METHOD OF ELECTRODE - A power storage device with excellent charge and discharge characteristics. A power storage device in which a decrease in capacity in charge and discharge cycles is inhibited. An electrode which includes a current collector and an active material layer and in which the active material layer includes an active material and a binder and the binder includes polybenzoxazine. An electrode that includes polybenzoxazine and another material as a binder. A basic material may be used as the active material. The electrode may be formed under high temperatures. | 06-30-2016 |
20160190600 | INTERCONNECTED HOLLOW NANOSTRUCTURES CONTAINING HIGH CAPACITY ACTIVE MATERIALS FOR USE IN RECHARGEABLE BATTERIES - Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials, such as silicon, tin, and germanium. In certain embodiments, a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery cycling. This design helps to reduce the risk of pulverization and to maintain electrical contacts among the nanostructures. It also provides a very high surface area available ionic communication with the electrolyte. The nanostructures have nanoscale shells but may be substantially larger in other dimensions. Nanostructures can be interconnected during forming the nanoscale coating, when the coating formed around two nearby template structures overlap. | 06-30-2016 |
20160197339 | MIXED ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, AND MANUFACTURING METHOD FOR THE SAME | 07-07-2016 |
20160197352 | Physiochemical Pretreatment for Battery Current Collector | 07-07-2016 |
20160204428 | NEGATIVE ELECTRODE FOR NONAQUEOUS-ELECTROLYTIC-SOLUTION SECONDARY CELLS, NONAQUEOUS-ELECTROLYTIC-SOLUTION SECONDARY CELL, AND METHOD FOR FABRICATING NEGATIVE ELECTRODE FOR NONAQUEOUS-ELECTROLYTIC-SOLUTION SECONDARY CELLS | 07-14-2016 |
20160204439 | SECONDARY-BATTERY BINDER COMPOSITION, SLURRY COMPOSITION FOR SECONDARY-BATTERY ELECTRODE, SECONDARY-BATTERY NEGATIVE ELECTRODE, AND SECONDARY BATTERY | 07-14-2016 |
20160254530 | CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES | 09-01-2016 |
20160380256 | COMPOSITE MATERIAL HAVING DOMAINS OF LITHIUM OXOMETALLATES IN A MATRIX - Composite materials having domains of lithium oxometallates in an electronically conductive matrix, and methods of making such composite materials are provided. Exemplary lithiated metals oxides include, for example, doped or undoped lithium oxometallates of the formula Li | 12-29-2016 |
20180026270 | BINDER, METHOD OF PREPARING THE BINDER, AND ANODE AND LITHIUM BATTERY INCLUDING THE BINDER | 01-25-2018 |
20190148708 | COATED IRON ELECTRODE AND METHOD OF MAKING SAME | 05-16-2019 |
20190148732 | BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY | 05-16-2019 |
20220140321 | Negative Electrode for Secondary Battery, and Secondary Battery Including Same - A negative electrode for a secondary battery includes: a current collector; a first electrode negative active material layer formed on the current collector and containing a first active material; and a second negative electrode active material layer formed on the first negative electrode active material layer and containing a second active material. The second active material is a bimodal active material including active materials having different specific surface areas, a specific surface area (B | 05-05-2022 |
20220140324 | SILICON-CONTAINING NEGATIVE ELECTRODES, ELECTROCHEMICAL CELLS, AND METHODS OF MAKING THE SAME - A negative electrode is provided herein as well as methods for preparing negative electrodes and electrochemical cells including the negative electrode. The negative electrode includes a first electroactive material, an electrically conductive material, and a polymeric binder. The first electroactive material includes silicon-containing particles having an average particle diameter of at least about 1 μm, and the electrically conductive material includes graphene nanoplatelets. The polymeric binder includes a polyimide, a polyamide, polyacrylonitrile, polyacrylic acid, a salt of polyacrylic acid, polyacrylamide, polyvinyl alcohol, carboxymethyl cellulose, or a combination thereof | 05-05-2022 |
20220140347 | SELF-HEALABLE CONDUCTIVE BINDER FOR ANODE OF LITHIUM ION BATTERY AND THE PREPARATION METHOD THEREOF - The present disclosure discloses a self-healing binder for lithium battery anodes and a method of preparing the same. The present disclosure includes a polyelectrolytes, a polyvalent chelators, and a conductive polymers, and at least one of the polyelectrolytes, the polyvalent chelators, and the conductive polymers is connected by a hydrogen bond, electrostatic bond, an ionic bond, van der Waals force, or two or more of these complementary bonds. | 05-05-2022 |