Class / Patent application number | Description | Number of patent applications / Date published |
205057000 | UTILIZING ELECTROLYSIS TO FORM BATTERY ELECTRODE ACTIVE MATERIAL OR COMPOSITION THEREFOR | 30 |
20120247963 | METHOD OF MANUFACTURING LITHIUM ION STORAGE DEVICE - Provided is a method of manufacturing a lithium ion storage device that has a positive electrode, an alloy-based negative electrode and a lithium ion supply source for pre-doping lithium ions to the negative electrode. The method includes: a pre-doping step of pre-doping the negative electrode at a low charge rate; and a first charge step of, after the pre-doping step, performing a first charge at a charge rate that is higher than the one during the pre-doping. | 10-04-2012 |
20140174935 | SURFACE TREATING METHOD OF NEGATIVE ELECTRODE FOR MAGNESIUM SECONDARY BATTERY, NEGATIVE ELECTRODE FOR MAGNESIUM SECONDARY BATTERY, AND MAGNESIUM SECONDARY BATTERY - A surface treating method of a negative electrode for a magnesium secondary battery is provided, wherein the magnesium secondary battery includes: a negative electrode capable of releasing magnesium ions during discharging and capable of precipitating elemental magnesium during charging; a positive electrode capable of precipitating a magnesium oxide during the discharging and capable of releasing magnesium ions during the charging; and a non-aqueous ion conductor for conducting magnesium ions as conduction species. The surface treating method comprises initializing the negative electrode by performing the discharging to form a bare surface at a surface of the negative electrode. | 06-26-2014 |
20140374264 | LITHIUM-ION BATTERY - A lithium-ion battery having an anode including an array of nanowires electrochemically coated with a polymer electrolyte, and surrounded by a cathode matrix, forming thereby interpenetrating electrodes, wherein the diffusion length of the Li | 12-25-2014 |
20150075993 | ELECTRIC STORAGE APPARATUS AND MANUFACTURING METHOD OF ELECTRIC STORAGE APPARATUS - An electric storage apparatus has a positive electrode plate, a negative electrode plate, and a separator. Each of the positive electrode plate and the negative electrode plate has a collector plate and an active material layer containing an electrolytic solution, and the active material layer is formed in a predetermined width on a partial region of a collector plate. The separator is placed between the positive electrode plate and the negative electrode plate and contains an electrolytic solution. At least one of the positive electrode plate and the negative electrode plate, an edge of the active material layer in a width direction has a waveform. A set value Wn of the width of the active material layer and a variation ΔW of the width of the active material layer satisfy a condition of 0.03≦ΔW/Wn≦0.056. | 03-19-2015 |
20160006016 | METHOD FOR PRODUCING 3D-STRUCTURED THIN FILMS - The method for producing a stack of films provided with at least one 3D-structured pattern including providing a first mould having a textured front face including a first 3D pattern, depositing a first layer of the stack on the textured front face so as to cover the first 3D pattern by a continuous layer, the first layer having a first face in contact with the front face of the mould, removing the first mould so as to release the first face of the first layer having a second 3D pattern complementary to the first 3D pattern and depositing a second layer of the stack on the first face of the first layer so as to cover the second 3D pattern by a continuous layer. | 01-07-2016 |
20160118643 | METHOD FOR MANUFACTURING AN ELECTRODE FOR LITHIUM ION BATTERIES - An electrode for lithium ion batteries, the electrode having a metal film which is inert to lithium ions and having a plurality of silicon nanowires protruding from the film, which are arranged on at least one flat side of the film, wherein sections of the nanowires are enclosed by the metal film. | 04-28-2016 |
205058000 | Organic active material other than organic metal salt | 2 |
20090260991 | METHODS FOR PRODUCING METAL OXIDE THIN FILM, CAPACITOR, HYDROGEN SEPARATION MEMBRANE-ELECTROLYTE MEMBRANE ASSEMBLY, AND FUEL CELL - A method for producing a metal oxide thin film ( | 10-22-2009 |
20100133108 | Method for producing hydrogen and applications thereof - A method for producing hydrogen and applications thereof, includes: a reaction and formation step, a reaction and acceleration step, and an extended treatment step, the reaction and formation step performed by a) providing a reaction object made of a metallic material; b) cleaning the reaction object; and c) having the cleaned reaction object chemically contacted with an electrolyte solution so as to generate a chemical reaction and to produce hydrogen and by-products thereof, the reaction and acceleration step performed to accelerate hydrogen production rate through the chemical reaction by adding an acidic material while performing the reaction and formation step, and the extended treatment step performed by drying an electrolyte solution of metal ions produced after hydrogen production reaction, and treating the electrolyte solution of metal ions with appropriate solutions so as to completely achieve economical and practical purposes of carrying out oxidation reduction and prevent a second pollution. | 06-03-2010 |
205059000 | Group IA metal-containing active material (e.g., Li, Na, K, etc.) | 17 |
20090272650 | Apparatus and Method for Recovering Valuable Substance From Lithium Secondary Battery - The present invention includes: a reaction tank ( | 11-05-2009 |
20100012499 | FUEL CELL CHARGER - A method and apparatus is described for recharging a fuel used to produce hydrogen for a hydrogen consuming device. The fuel can be NaBH | 01-21-2010 |
20130220817 | High Energy Density Li-Ion Battery Electrode Materials and Cells - A method of preparing a high capacity nanocomposite cathode of FeF | 08-29-2013 |
20130327648 | Method for Alkaliating Anodes - The present invention relates to a method for lithiation of an intercalation-based anode or a non-reactive plating-capable foil or a reactive alloy capable anode, whereby utilization of said lithiated intercalation-based anode or a plating-capable foil or reactive alloy capable anode in a rechargeable battery or electrochemical cell results in an increased amount of lithium available for cycling, and an improved reversible capacity during charge and discharge. | 12-12-2013 |
20140008233 | METHODE FOR MAKING ELECTRODE ACTIVE MATERIAL OF LITHIUM ION BATTERY - A method for making an electrode active material of a lithium ion battery is disclosed. In the method, elemental sulfur is mixed with a polyacrylonitrile to form a mixture. The mixture is heated in vacuum or a protective gas at a heating temperature of about 250° C. to about 500° C., to form a sulfur containing composite. The sulfur containing composite is reacted with a reducing agent for elemental sulfur in a liquid phase medium to remove part of the elemental sulfur from the sulfur containing composite. | 01-09-2014 |
20140027291 | LITHIUM-ION BATTERY PRECURSOR INCLUDING A SACRIFICIAL LITHIUM ELECTRODE AND A POSITIVE TEXTILE CONVERSION ELECTRODE - The invention relates to a lithium-ion accumulator precursor and to a method for producing an accumulator from such a precursor. | 01-30-2014 |
20140027292 | LITHIUM-ION BATTERY PRECURSOR INCLUDING A SACRIFICIAL LITHIUM ELECTRODE AND A NEGATIVE TEXTILE CONVERSION ELECTRODE - The invention relates to a lithium-ion accumulator precursor and to a method for producing an accumulator from such a precursor. | 01-30-2014 |
20140166491 | METHODS FOR PRODUCING TEXTURED ELECTRODE BASED ENERGY STORAGE DEVICE - This method enables the use of nanowire or nano-textured forms of Polyaniline and other conductive polymers in energy storage components. The delicate nature of these very high surface area materials are preserved during the continuous electrochemical synthesis, drying, solvent application and physical assembly. The invention also relates to a negative electrode that is comprised of etched, lithiated aluminum that is safer and lighter weight than conventional carbon based lithium-ion negative electrodes. The invention provides for improved methods for making negative and positive electrodes and for energy storage devices containing them. The invention provides sufficient stability in organic solvent and electrolyte solutions, where the prior art processes commonly fail. The invention further provides stability during repetitive charge and discharge. The invention also provides for novel microstructure protecting support membranes to be used in an energy storage device. | 06-19-2014 |
20140183047 | Regeneration System for Metal Electrodes - The electrochemical regeneration of a replaceable metal electrode of a metal-air battery takes place in a supplementary electrochemical cell with a chemical agent oxidized on the counter electrode. The decrease of the regeneration voltage at the supplementary electrochemical cell results in the growth of the regeneration efficiency. The creation of a commercial product during chemical agent oxidation on the counter electrode decreases the overall cost of the regeneration. Possible chemical agents for regeneration include salts, metal complexes, monomers, conjugated organic molecules, oligomers or polymers. | 07-03-2014 |
20140284215 | ANODE FOR CABLE-TYPE SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY INCLUDING THE ANODE - Disclosed is an anode for a lithium secondary battery. The anode includes a current collector in the form of a wire and a porous anode active material layer coated to surround the surface of the current collector. The three-dimensional porous structure of the active material layer increases the surface area of the anode. Accordingly, the mobility of lithium ions through the anode is improved, achieving superior battery performance. In addition, the porous structure allows the anode to relieve internal stress and pressure, such as swelling, occurring during charge and discharge of a battery, ensuring high stability of the battery while preventing deformation of the battery. These advantages make the anode suitable for use in a cable-type secondary battery. Further disclosed is a lithium secondary battery including the anode. | 09-25-2014 |
20140374265 | PROCESS FOR THE PREPARATION OF AN ELECTRODE FROM A POROUS MATERIAL, ELECTRODE THUS OBTAINED AND CORRESPONDING ELECTROCHEMICAL SYSTEM - Process for the preparation of electrodes from a porous material making it possible to obtain electrodes that are useful in electrochemical systems and that have at least one of the following properties: a high capacity in mAh/gram, a high capacity in mAh/liter, a good capacity for cycling, a low rate of self-discharge, and a good environmental tolerance. | 12-25-2014 |
20150144494 | FADE-RESISTANT HIGH CAPACITY ELECTRODES FOR A LITHIUM-ION BATTERY - The gravimetric and volumetric efficiency of lithium ion batteries may be increased if higher capacity materials like tin and silicon are substituted for carbon as the lithium-accepting host in the negative electrode of the battery. But both tin and silicon, when fully charged with lithium, undergo expansions of up to 300% and generate appreciable internal stresses. These internal stresses, which will develop on each discharge-charge cycle, may lead to a progressive reduction in battery capacity, also known as battery fade. The effects of the internal stresses may be significantly reduced by partially embedding tin or silicon nanowires in the current collector. Additional benefit may be obtained if a 5 to 50% portion of the nanowire length at its embedded end are coated or masked with a composition which impedes lithium diffusion. Methods for embedding and masking the nanowires are described. | 05-28-2015 |
20150364748 | HIGH CAPACITY LITHIUM ION BATTERY FORMATION PROTOCOL AND CORRESPONDING BATTERIES - Battery formation protocols are used to perform initial charging of batteries with lithium rich high capacity positive electrode to result a more stable battery structure. The formation protocol generally comprises three steps, an initial charge step, a rest period under an open circuit and a subsequent charge step to a selected partial activation voltage. The subsequent or second charge voltage is selected to provide for a desired degree of partial activation of the positive electrode active material to achieve a desired specific capacity while providing for excellent stability with cycling. The formation protocol is particularly effective to stabilize cycling for compositions with moderate lithium enrichment. | 12-17-2015 |
20160006017 | FABRICATING METHOD AND FABRICATING APPARATUS FOR SECONDARY BATTERY - To provide a fabricating method and a fabricating apparatus for a lithium-ion secondary battery having stable charge characteristics and lifetime characteristics. A positive electrode is subjected to an electrochemical reaction in a large amount of electrolytic solution in advance before a secondary battery is completed. In this manner, the positive electrode can have stability. The use of the positive electrode enables fabrication of a highly reliable secondary battery. Similarly, a negative electrode is subjected to an electrochemical reaction in a large amount of electrolytic solution in advance. The use of the negative electrode enables fabrication of a highly reliable secondary battery. | 01-07-2016 |
20160020455 | Methods of Coating an Electrically Conductive Substrate and Related Electrodepositable Compositions - Methods are disclosed in which an electrically conductive substrate is immersed into an electrodepositable composition, the substrate serving as an electrode in an electrical circuit comprising the electrode and a counter-electrode immersed in the composition, a coating being applied onto or over at least a portion of the substrate as electric current is passed between the electrodes. The electrodepositable composition comprises: (a) an aqueous medium; (b) an ionic resin; and (c) solid particles. | 01-21-2016 |
20160049701 | PROCESS FOR PREPARING AND RECYCLING CATHODE ACTIVE MATERIALS FOR LITHIUM-ION BATTERIES - Herein is disclosed a process for preparing a cathode active material for lithium-ion batteries, comprising preparing a slurry by mixing a lithium-deficient cathode active material for lithium-ion batteries with a solution containing lithium-ions; and applying a direct current in the slurry using a working electrode and a counter electrode. A method for recycling the cathode active material from lithium-ion batteries is also provided. The process of the invention can be used to recycle the cathode active material from used or waste lithium-ion batteries efficiently and at low cost, and the recycled cathode active material can be used to prepare new lithium-ion batteries. | 02-18-2016 |
20160181667 | BATTERY CELL OF STAIR-LIKE STRUCTURE | 06-23-2016 |
205060000 | Nickel-containing active material | 4 |
20090159449 | METHOD FOR PRODUCING ELECTRODE HAVING IMMOBILIZED pi-CONJUGATED LIGANDS, ELECTRODE HAVING IMMOBILIZED pi-CONJUGATED METAL COMPLEXES, AND ELECTRODE HAVING IMMOBILIZED pi-CONJUGATED MULTINUCLEAR METAL COMPLEXES - A method for producing an electrode having immobilized π-conjugated ligands is provided. The method includes bringing an aqueous solution into contact with an electrically conductive base material, the aqueous solution including π-conjugated ligands and at least one of (i) a surfactant, and (ii) a water-soluble molecule having a structure different from that of the π-conjugated ligands, the water-soluble molecule having a π-conjugated structure, and immobilizing the π-conjugated ligands on the base material. | 06-25-2009 |
20160056449 | ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND PREPARATION THEREOF - The present invention relates to an anode active material for a lithium secondary battery, comprising a carbon material, and a coating layer formed on the surface of particles of the carbon material and having a plurality of Sn-based domains having an average diameter of 1 μm or less. The inventive anode active material having a Sn-based domains coating layer on the surface of a carbon material can surprisingly prevent stress due to volume expansion which generates by an alloy of Sn and lithium. Also, the inventive method for preparing an anode active material can easily control the thickness of the coating layer. | 02-25-2016 |
20160164072 | HIGH ENERGY/POWER DENSITY NICKEL OXIDE/HYDROXIDE MATERIALS AND NICKEL COBALT OXIDE/HYDROXIDE MATERIALS AND PRODUCTION THEREOF - According to one embodiment, a method includes forming a nickel oxide/hydroxide active film onto a substrate from a solution including a nickelous salt and an electrolyte, where the nickel oxide/hydroxide active film has a physical characteristic of maintaining greater than about 80% charge over greater than 500 charge/discharge cycles, and wherein the nickel oxide/hydroxide active film has a physical characteristic of storing electrons at greater than about 0.5 electron per nickel atom. | 06-09-2016 |
205061000 | Cadmium-containing | 1 |
20130168254 | Electrochemical Deposition of Nanoscale Catalyst Particles - A process for the electrochemical deposition of nanoscale catalyst particles using a sacrificial hydrogen anode as counter electrode for the working electrode is disclosed, whereby a concurrent development of hydrogen at the working electrode is mostly or completely avoided. | 07-04-2013 |
205064000 | Zinc-containing active material | 1 |
20120205248 | TIN AND TIN-ZINC PLATED SUBSTRATES TO IMPROVE NI-ZN CELL PERFORMANCE - An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 μIn maximizes formation of an intermetallic compound Cu | 08-16-2012 |