Patent application number | Description | Published |
20100112448 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A positive electrode active material includes a layered lithium-manganese oxide represented by the general formula Li | 05-06-2010 |
20100233550 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode, and a non-aqueous electrolyte solution in which an electrolyte is dissolved in a non-aqueous solvent. The positive electrode active material includes a lithium-containing transition metal oxide that releases oxygen during initial charge, and the non-aqueous solvent contains a fluorinated cyclic carbonate in which fluorine atoms are directly bonded to a carbonate ring. | 09-16-2010 |
20100248023 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery has a working electrode | 09-30-2010 |
20110052990 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery including a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte. The positive electrode active material is a lithium transition metal oxide that contains niobium and is represented by xLi[Li | 03-03-2011 |
20110076564 | POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE POSITIVE ELECTRODE ACTIVE MATERIAL - A positive electrode active material having a lithium-excess lithium-transition metal composite oxide particle represented by the chemical formula Li | 03-31-2011 |
20110121786 | METHOD OF DETECTING CONDITION OF SECONDARY BATTERY - A method of detecting a condition of a secondary battery is provided. The method includes the steps of: measuring an entropy change at a predetermined state of charge of the secondary battery; charging the secondary battery after the step of measuring an entropy change; repeating the steps of measuring an entropy change and charging the secondary battery; and detecting a deterioration condition of the secondary battery based on the slope of a measured entropy change curve with respect to state of charge. | 05-26-2011 |
20120115043 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte solution containing a nonaqueous solvent. The positive electrode active material contains a lithium-containing transition metal oxide represented by general formula (1), Li | 05-10-2012 |
20120279055 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery has a working electrode 1 having a positive electrode active material, a counter electrode 2, and a non-aqueous electrolyte containing lithium. The positive electrode active material includes a lithium pre-doped transition metal oxide prepared by pre-doping lithium into a sodium-containing transition metal oxide having an initial charge-discharge efficiency of higher than 100% as determined by charging and discharging using a lithium metal negative electrode as a counter electrode, and the sodium-containing transition metal oxide is represented by the compositional formula Na | 11-08-2012 |