Patent application number | Description | Published |
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 |
20150099177 | 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. | 04-09-2015 |