Patent application number | Description | Published |
20090104528 | Electrode for Lithium Secondary Battery, Lithium Secondary Battery and Method for Producing the Same - An electrode for a lithium secondary battery including a sheet-like current collector and an active material layer carried on the current collector. The active material layer is capable of absorbing and desorbing lithium, and the active material layer includes a plurality of columnar particles having at least one bend. An angle θ | 04-23-2009 |
20090176158 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A negative electrode for a lithium secondary battery of the present invention includes a current collector and a negative electrode active material layer carried on the current collector. The negative electrode active material layer includes a plurality of columnar particles. The current collector has a surface including a depression and a plurality of projected regions defined by the depression. The projected regions carry the columnar particles. Further, the present invention relates to a lithium secondary battery using the foregoing negative electrode. According to the present invention, it is possible to provide a high-capacity negative electrode excellent mainly in cycle characteristics for a lithium secondary battery, and a lithium secondary battery including the same. | 07-09-2009 |
20090297954 | NONAQUEOUS SOLVENT AND NONAQUEOUS ELECTROLYTIC SOLUTION FOR ELECTRICITY STORAGE DEVICE AND NONAQUEOUS ELECTRICITY STORAGE DEVICE, LITHIUM SECONDARY BATTERY AND ELECTRIC DOUBLE LAYER CAPACITOR USING THE SAME - A nonaqueous solvent for an electricity storage device according to the present invention comprises fluorine-containing cyclic saturated hydrocarbon having a structure which is represented by general formula (1) below and in which one or two substituents R are introduced into a cyclohexane ring (in general formula (1), R is represented by C | 12-03-2009 |
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 |
20100119948 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY CELL, LITHIUM SECONDARY CELL USING THE SAME, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY CELL - A negative electrode for a lithium secondary battery according to the present invention includes a current collector | 05-13-2010 |
20100129711 | NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - This invention provides a negative electrode and a non-aqueous electrolyte secondary battery including the negative electrode. The negative electrode includes a Li-absorbing element as a negative electrode active material, is free from deformation, separation of the negative electrode active material layer from the negative electrode current collector, and deposition of lithium on the negative electrode current collector, and is excellent in cycle characteristic, large-current discharge characteristic, and low-temperature discharge characteristic. | 05-27-2010 |
20100151320 | NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - A negative electrode for nonaqueous electrolyte secondary battery capable of reversible occlusion and release of lithium ions, comprising current collector ( | 06-17-2010 |
20100151330 | NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - A negative electrode for a non-aqueous electrolyte secondary battery, which reversibly inserts/extracts lithium ions includes a current collector ( | 06-17-2010 |
20100273045 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A nonaqueous electrolyte secondary battery according to the present invention includes a positive electrode and a negative electrode which are capable of reversibly occluding and releasing lithium; a resin layer provided between the positive electrode and the negative electrode; a battery case accommodating the positive electrode, the negative electrode and the resin layer; a nonaqueous electrolyte solution filling the battery case; and an insulating layer interposed, at least partially, between the positive electrode and the resin layer, the insulating layer containing aluminum fluoride. | 10-28-2010 |
20100291441 | NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - A negative electrode includes current collector in which concave portion and convex portion are formed at least one surface thereof, and columnar body which is formed by laminating n (n≧2) stages of columnar body portions which are formed on convex portion of current collector, and includes columnar body portions in which variation direction of content ratios of elements of odd-numbered stages of columnar body portions and that of even-numbered stages of columnar body portions are different from each other, and plural protruding bodies are provided on the surfaces of columnar body portions at the side in which intersection angles between central lines of obliquely erected directions of columnar body portions and a central line of a thickness direction of current collector, and space is provided in columnar body by protruding bodies of the laminated columnar body portions. | 11-18-2010 |
20110171540 | NON-AQUEOUS SOLVENT AND NON-AQUEOUS ELECTROLYTIC SOLUTION FOR ENERGY STORAGE DEVICE, AND ENERGY STORAGE DEVICE, LITHIUM SECONDARY BATTERY AND ELECTRIC DOUBLE-LAYER CAPACITOR EACH COMPRISING THE NON-AQUEOUS SOLVENT OR THE NON-AQUEOUS ELECTROLYTIC SOLUTION - A nonaqueous solvent for an electrical storage device according to the present invention includes fluorine-containing cyclic saturated hydrocarbon having a structure represented by the following general formula (1) in which one or two substituents R are introduced into a cyclohexane ring; a compound having a relative dielectric constant of 25 or higher; and a chain carbonate (in general formula (1), R is represented by C | 07-14-2011 |
20120027919 | ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - An electrode for a lithium secondary battery including a sheet-like current collector and an active material layer carried on the current collector. The active material layer is capable of absorbing and desorbing lithium, and the active material layer includes a plurality of columnar particles having at least one bend. An angle θ | 02-02-2012 |
20120130135 | NONAQUEOUS SOLVENT FOR ELECTRICAL STORAGE DEVICE - Provided is a nonaqueous solvent for an electrical storage device, including a fluorine-containing, cyclic, saturated hydrocarbon represented by the following general formula (1) and having a structure obtained by introducing one or two substituents R into a cyclopentane ring: | 05-24-2012 |
20120214067 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A negative electrode active material for a lithium ion secondary battery contains a lithium titanium complex oxide having a composition expressed as Li | 08-23-2012 |
20120214069 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A negative electrode active substance material for a lithium ion secondary battery contains a lithium titanium complex oxide having a composition expressed as Li | 08-23-2012 |
20120270105 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery disclosed in the present application includes: a positive electrode capable of absorbing and releasing lithium, containing a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystalline structure; and a negative electrode capable of absorbing and releasing lithium, containing a negative electrode active material composed of a lithium-containing transition metal oxide obtained by substituting some of Ti element of a lithium-containing titanium oxide having a spinel crystalline structure with one or more element different from Ti, wherein a retention of the negative electrode is set to be greater than a retention of the positive electrode, and an irreversible capacity rate of the negative electrode is set to be greater than an irreversible capacity rate of the positive electrode, whereby a discharge ends by negative electrode limitation. | 10-25-2012 |
20120321964 | NONAQUEOUS SOLVENT AND NONAQUEOUS ELECTROLYTIC SOLUTION FOR ELECTRICAL STORAGE DEVICE AND NONAQUEOUS ELECTRICAL STORAGE DEVICE, LITHIUM SECONDARY BATTERY AND ELECTRIC DOUBLE LAYER CAPACITOR USING THE SAME - A nonaqueous solvent for an electrical storage device disclosed in the present application includes fluorine-containing cyclic saturated hydrocarbon having a structure represented by the following general formula (1) in which one or two substituents R are introduced into a cyclopentane ring; and a compound having a relative dielectric constant of 25 or higher (in general formula (1), R is represented by C | 12-20-2012 |
20130209884 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A negative electrode active material for lithium ion secondary batteries of the present invention includes a lithium-titanium composite oxide that has a composition represented by Li | 08-15-2013 |
20140170506 | NONAQUEOUS SOLVENT FOR ELECTRICITY STORAGE DEVICE, NONAQUEOUS ELECTROLYTIC SOLUTION AND ELECTRICITY STORAGE DEVICE AND LITHIUM SECONDARY BATTERY USING THE SAME - A nonaqueous solvent for an electricity storage device includes a fluorine-containing cyclic carbonate represented by the following general formula (1) (in general formula (1), R | 06-19-2014 |
20140335357 | NEGATIVE ELECTRODE ACTIVE MATERIAL, ELECTRICAL STORAGE DEVICE, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL - A negative-electrode active material disclosed herein contains a lithium titanate having a spinel structure, and satisfies the relationship B×P<50, where B is a specific surface (unit: m | 11-13-2014 |