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 |