Patent application number | Description | Published |
20090104527 | Hydrogen Storage Alloy, Its Production Method, Hydrogen Storage Alloy Electrode, and Secondary Battery - A hydrogen storage alloy containing a phase of a chemical composition defined by a general formula A | 04-23-2009 |
20090148770 | Hydrogen Absorbing Alloy, Production Method Thereof, and Secondary Battery - The present invention provides a hydrogen absorbing alloy containing a phase of a Gd | 06-11-2009 |
20110037037 | COMPOSITE OF METAL SULFIDE AND METAL OXIDE AND PROCESS FOR PRODUCING THE COMPOSITE - The present invention provides a process for producing a composite of metal sulfide and metal oxide obtained by dispersing a metal sulfide, which is nickel sulfide, copper sulfide, iron sulfide or a mixture thereof, in a metal salt-containing aqueous solution, and depositing metal salt on the metal sulfide by drying the aqueous solution; and heat-treating the metal sulfide comprising a metal salt deposited thereon at 400 to 900° C. in a sulfur-containing atmosphere. Also disclosed is a composite obtained by the aforementioned process, comprising a metal sulfide having a surface partially covered with a metal oxide. The composite of the present invention has improved cycle characteristics while maintaining a high charge/discharge capacity and excellent electrical conductivity inherently possessed by metal sulfide, which is usable as a material having a high theoretical capacity and excellent electrical conductivity when used as a positive-electrode material for a lithium secondary battery. | 02-17-2011 |
20110070362 | BATTERY ELECTRODE SUBSTRATE, AND ELECTRODE EMPLOYING THE SAME - An electrode substrate for a battery has nickel applied as a coat on the surface of a base constituted of crossing of a plurality of fibers including a core formed of synthetic resin and a coating of synthetic resin having a softening temperature lower than the softening temperature of the synthetic resin forming the core. The electrode substrate has the fibers of the base fusion-bonded at a cross point by heat treatment. The ratio of the coating occupying a II-II cross section of the fiber cross point is larger than the ratio of the coating occupying a fiber cross section (III-III cross section) at a site other than at the cross point. | 03-24-2011 |
20110171537 | LITHIUM SULFIDE-CARBON COMPLEX, PROCESS FOR PRODUCING THE COMPLEX, AND LITHIUM ION SECONDARY BATTERY UTILIZING THE COMPLEX - The present invention provides a process for producing a lithium sulfide-carbon composite, the process comprising placing a mixture of lithium sulfide and a carbon material having a specific surface area of 60 m | 07-14-2011 |
20110192506 | Hydrogen absorbing alloy, hydrogen absorbing alloy electrode, secondary battery, and production method of hydrogen absorbing alloy - The present invention provides a hydrogen absorbing alloy containing a phase of a Pr | 08-11-2011 |
20110223481 | PROCESS FOR PRODUCING METAL SULFIDE - The present invention provides a production process of a metal sulfide, which includes placing a metal component and sulfur in a conductive container, and applying a pulsed direct current to the container in a non-oxidizing atmosphere to cause the metal component to react with sulfur, and also provides a metal sulfide obtained by the process and represented by a composition formula: MS | 09-15-2011 |
20110262817 | LITHIUM ION SECONDARY BATTERY - Disclosed is a lithium ion secondary battery, in which comprises a vinyl alcohol polymer or a derivative thereof in an amount of 0.3 mg or more per 1 mAh of battery capacity in terms of a vinyl alcohol unit moiety content. The lithium ion secondary battery can decrease the battery voltage under high-temperature conditions and cannot be recharged after being exposed to high-temperature conditions. | 10-27-2011 |
20110315919 | PRODUCTION PROCESS FOR LITHIUM-BORATE-SYSTEM COMPOUND - A process is provided, process which makes it possible to produce lithium-borate-system materials by means of relatively simple means, lithium-borate-system materials which are useful as positive-electrode active materials for lithium-ion secondary battery, and the like, whose cyclic characteristics, capacities, and so forth, are improved, and which have better performance. The present production is characterized in that a divalent metallic compound including at least one member of compounds that is selected from the group consisting of divalent-iron compounds and divalent-manganese compounds, and boric acid as well as lithium hydroxide are reacted at 400-650° C. in a molten salt of a carbonate mixture comprising lithium carbonate and at least one member of alkali-metal carbonates that is selected from the group consisting of potassium carbonate, sodium carbonate, rubidium carbonate and cesium carbonate in a reducing atmosphere. | 12-29-2011 |
20120027926 | REFERENCE ELECTRODE, ITS MANUFACTURING METHOD, AND AN ELECTROCHEMICAL CELL - [PROBLEM] The purpose of the present invention is to provide a reference electrode which is easy to manufacture and handle, its manufacturing method, and an electrochemical cell using this. | 02-02-2012 |
20120115034 | COBALT CERIUM COMPOUND, ALKALINE SECONDARY BATTERY, AND METHOD FOR PRODUCING COBALT CERIUM COMPOUND - A compound having a high reduction resistance and being capable of sufficiently performing a function as an electronic conductive additive when added to a positive electrode active material as an electronic conductive additive is provided. In a method for producing a cobalt cerium compound including a step of depositing a hydroxide containing cobalt and cerium in an aqueous solution containing cobalt ions and cerium ions by changing the pH of the aqueous solution and thereafter performing a treatment of oxidizing the hydroxide, the ratio of the cerium ions contained in the aqueous solution containing the cobalt ions and the cerium ions is set to be more than 5% by atom and 70% by atom or less with respect to the sum of the cobalt ions and the cerium ions before the hydroxide is deposited. | 05-10-2012 |
20120318413 | Hydrogen Storage Alloy, Hydrogen Storage Alloy Electrode, Secondary Battery, And Method For Producing Hydrogen Storage Alloy - Provided is a hydrogen storage alloy which is characterized in that two or more crystal phases having different crystal structures are layered in a c-axis direction of the crystal structures. The hydrogen storage alloy is further characterized in that a difference between a maximum value and a minimum value of a lattice constant a in the crystal structures of the laminated two or more crystal phases is 0.03 Å or less. | 12-20-2012 |
20130260236 | NEGATIVE-ELECTRODE MATERIAL FOR ELECTRICITY STORAGE DEVICE, AND NEGATIVE ELECTRODE FOR ELECTRICITY STORAGE DEVICE USING SAME - The negative electrode material for an electricity storage device comprising a negative electrode active material containing an oxide material, and a binder made of a water-soluble polymer. As the water-soluble polymer, a cellulose derivative or polyvinyl alcohol can be used. | 10-03-2013 |
20140011089 | POLYIMIDE PRECURSOR SOLUTION, POLYIMIDE PRECURSOR, POLYIMIDE RESIN, MIXTURE SLURRY, ELECTRODE, MIXTURE SLURRY PRODUCTION METHOD, AND ELECTRODE FORMATION METHOD - The invention addresses the problem of providing a polyimide precursor, a polyimide precursor solution, and a mixture slurry, each capable of more firmly binding active material particles to a current collecting body. The polyimide precursor solution according to the invention contains a tetracarboxylic acid ester compound, a diamine compound having an anionic group, and a solvent. The solvent dissolves the tetracarboxylic acid ester compound and the diamine compound. As the tetracarboxylic acid ester compound, a 3,3′,4,4′-benzophenonetetracarboxylic acid diester is particularly preferred. Examples of the “diamine compound having an anionic group” include 3,4-diaminobenzoic acid, 3,5-diaminobenzoic acid, and m-phenylenediamine-4-sulfonic acid. Further, the mixture slurry according to the invention contains active material particles in the polyimide precursor solution. | 01-09-2014 |
20140054492 | Negative Electrode Material for Lithium Secondary Battery and its Manufacturing Method, and Negative Electrode for Lithium Secondary Battery, and Lithium Secondary Battery - [Object] The object is to provide a negative electrode material for a lithium secondary battery, wherein a sulfide-based negative electrode with water-resistant properties can exert excellent cycle characteristics and high output performance while maintaining a high discharge capacity and there is no precipitation of lithium dendrites during charge at low temperature. | 02-27-2014 |
Patent application number | Description | Published |
20110200875 | SULFUR-MODIFIED POLYACRYLONITRILE, MANUFACTURING METHOD THEREFOR, AND APPLICATION THEREOF - Provided is a sulfur-modified polyacrylonitrile manufacturing method that is characterized in that a starting base powder that comprises sulfur powder and polyacrylonitrile powder is mixed and the mixture is heated in a non-oxidizing environment while outflow of sulfur vapor is prevented. Also provided are a cathode for lithium batteries that uses, as the active substance, the sulfur-modified polyacrylonitrile manufactured with the method, and a lithium secondary battery that includes the cathode as a component element. This enables the practical use of an inexpensive sulfur-based material as the cathode material for lithium secondary batteries, and in particular, a sulfur-based cathode material that enables higher output and has excellent cycle life characteristics, as well as other characteristics, and secondary lithium batteries using the same can be obtained. | 08-18-2011 |
20110287320 | Nickel Positive Electrode for Fiber Battery - Disclosed is a nickel positive electrode for a fiber battery having a long life duration, and also being enabling a high output and high capacity to be attained. For this purpose, the nickel positive electrode for a fiber battery is obtained by coating a carbon fiber with nickel, then causing a cathodic polarization in a nickel nitrate bath using the nickel-coated carbon fiber as a cathode, and then immersing the precipitate, which was deposited on the surface of the carbon fiber by the cathodic polarization, in an aqueous caustic alkali solution. | 11-24-2011 |
20110291055 | PRODUCTION PROCESS FOR LITHIUM-SILICATE-SYSTEM COMPOUND - The present invention is one which provides a production process for lithium-silicate-system compound, the production process being characterized in that: a lithium-silicate compound being expressed by Li | 12-01-2011 |
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 |
20120214040 | FIBER ELECTRODE AND FIBER BATTERY, METHOD OF FABRICATING THE SAME, AND FIBER ELECTRODE AND FIBER BATTERY FABRICATION APPARATUS - The present invention provides a method of efficiently fabricating a large number of fiber electrodes at the same time from a large number of fibers while taking advantage of inherent characteristics of fiber electrodes. | 08-23-2012 |
20120219844 | ELECTRICAL STORAGE DEVICE INCLUDING FIBER ELECTRODE, AND METHOD OF FABRICATING THE SAME - An object of the present invention is to provide a highly efficient electrical storage device that uses a fiber positive electrode and a fiber negative electrode and in which lithium ion is used as an intercalating species, and to provide a method of fabricating the electrical storage device. The electrical storage device according to the present invention includes: a fiber positive electrode including an electrically conductive fiber, the fiber having a surface on which a positive electrode active material coating is formed, the positive electrode active material coating containing a transition metal oxide represented by a chemical formula 1 which is (Li | 08-30-2012 |
20120267566 | LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE MATERIAL - Provided is a positive electrode material for a lithium ion secondary battery, including a crystallized glass powder including an olivine-type crystal represented by General Formula LiM | 10-25-2012 |
20120276448 | NEGATIVE ELECTRODE MATERIAL FOR AN ELECTRICAL STORAGE DEVICE, AND NEGATIVE ELECTRODE FOR AN ELECTRICAL STORAGE DEVICE USING THE SAME - Provided is a negative electrode material for an electricity storage device, comprises, a negative electrode active material comprising a compound containing at least SnO and P | 11-01-2012 |
20120276452 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRICITY STORAGE DEVICE, AND METHOD FOR PRODUCING SAME - A negative electrode active material for an electricity storage device comprises at least SnO as a composition thereof. When a binding energy value of an electron on a Sn 3d | 11-01-2012 |
20130029222 | POSITIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY COMPRISING THAT POSITIVE ELECTRODE - To provide a sulfur-system positive electrode for lithium-ion battery, sulfur-system positive electrode which is good in the cyclability and the other characteristics, and a lithium-ion secondary battery including that positive electrode. | 01-31-2013 |
20130059201 | NEGATIVE-ELECTRODE ACTIVE SUBSTANCE FOR ELECTRICITY STORAGE DEVICE, AND NEGATIVE ELECTRODE MATERIAL FOR ELECTRICITY STORAGE DEVICE AND NEGATIVE ELECTRODE FOR ELECTRICITY STORAGE DEVICE WHICH USE THE SAME - Provided is a negative-electrode active material for an electricity storage device, comprising: at least one kind of inorganic material selected from Si, Sn, Al, an alloy comprising any one of Si, Sn, and Al, and graphite; and an oxide material comprising at least one of P | 03-07-2013 |
20130078519 | PRODUCTION PROCESS FOR LITHIUM-SILICATE-BASED COMPOUND - A production process for lithium-silicate-based compound according to the present invention is characterized in that: a lithium-silicate compound being expressed by Li | 03-28-2013 |
20130183584 | LITHIUM-SILICATE-BASED COMPOUND AND PRODUCTION PROCESS FOR THE SAME - A production process for lithium-silicate-based compound is characterized in that:
| 07-18-2013 |
20130273402 | NEGATIVE ELECTRODE FOR USE IN SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME - A secondary battery includes: a fiber negative electrode having a surface on which a negative electrode active material coating is formed, the coating containing a compound of A | 10-17-2013 |
20140050974 | SODIUM SECONDARY BATTERY - Because of being equipped with a positive electrode, a negative electrode and a sodium-ion nonaqueous electrolyte, and because the positive electrode includes a sulfur-based positive-electrode active material containing carbon (C) and sulfur (S), it is possible to inhibit sulfur from eluting out into electrolytic solution, thereby resulting in a sodium secondary battery that makes it feasible to undergo charging and discharging for 100 cycles or more reversibly. | 02-20-2014 |
20140127585 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, VEHICLE, AND PROCESS FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL - It is intended to provide a positive electrode active material, which contains a lithium silicate based compound and has superior conductivity, for nonaqueous electrolyte secondary battery, a process for producing the same, and a nonaqueous electrolyte secondary battery using the positive electrode active material. The lithium silicate based compound and a carbon material are mixed at 450 to 16000 rpm for 1 minute to 10 hours and then heated and pressurized at 500° C. to 700° C. at 1 to 500 MPa for 1 minute to 15 hours, thereby adhering the lithium silicate based compound and the carbon material to each other. | 05-08-2014 |
20140134485 | NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, AND NEGATIVE ELECTRODE AS WELL AS SECONDARY BATTERY USING THE SAME - A negative-electrode active material for secondary battery includes a sulfur-modified polyacrylonitrile. The sulfur-modified polyacrylonitrile includes a polyacrylonitrile, and sulfur being introduced into the polyacrylonitrile. | 05-15-2014 |
20140231721 | LITHIUM SILICATE-BASED COMPOUND, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY USING THE SAME - Provided is a novel lithium silicate-based material useful as a positive electrode material for lithium ion secondary battery. | 08-21-2014 |
20140308579 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR SODIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE, AND SODIUM ION SECONDARY BATTERY - Provided are a positive electrode active material for a sodium ion secondary battery, and a positive electrode and a sodium ion secondary battery using the material. The positive electrode active material for a sodium ion secondary battery comprises a lithium sodium-based compound containing lithium (Li), sodium (Na), iron (Fe), and oxygen (O). | 10-16-2014 |
20140332718 | LITHIUM SILICATE-BASED COMPOUND AND PRODUCTION PROCESS FOR THE SAME, POSITIVE-ELECTRODE ACTIVE MATERIAL AND POSITIVE ELECTRODE FOR USE IN LITHIUM-ION SECONDARY BATTERY AS WELL AS SECONDARY BATTERY - A lithium silicate-based compound according to the present invention is expressed by a general formula, Li | 11-13-2014 |
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 |