| 摘要 |
PROBLEM TO BE SOLVED: To prevent deterioration of high load characteristic by decreasing of dynamic factors such as specific capacity or movement of lithium ions, in the nonaqueous electrolytic liquid secondary battery, especially a positive electrode material using lithium manganese composite oxide. SOLUTION: The lithium manganese composite oxide that, in an electron spin resonance(ESR) measurement measured under room temperature, (a) the resonance of 3,380<=Ho<=3,410 gauss, 2,500<=W<=3,500 gauss (Ho: resonance magnetic field, W: line width), (b) the resonance pf 2,200<=Ho<=2,800 gauss, 300<=W<=1,000 gauss, and (c) the resonance of 3,380<=Ho<=3,410 gauss, 200<=W<=300 gauss, exist, and the integrated intensity ratio of (b) to (a) is 1 to 10%, and the integrated intensity ratio of (c) to (a) is 0.3 to 3%, is used as the positive electrode active material of the nonaqueous electrolytic liquid secondary battery. |
