| 摘要 |
PROBLEM TO BE SOLVED: To improve discharge load characteristic and charge and discharge cycle characteristic in a nonaqueous electrolytic secondary battery using a positive electrode, having a positive electrode compound layer containing a lithium manganese oxide held on a positive electrode power collector, and a negative electrode having a negative electrode compound layer containing a carbon material held on a negative electrode power collector. SOLUTION: The weight ratio of a lithium manganese oxide contained in a positive electrode compound layer 16 to a carbon material contained in a negative electrode compound layer 15 is restrained to be within the range of 2.0:1 to 2.9:1. At this time, when the filling density of the negative electrode compound layer 15 is preferably 1.4 to 1.7 g/cm<2> , and the thickness ratio of the positive electrode 2 and the negative electrode 1 is 1.15:1 to 1.6:1, discharge load characteristics and charge and discharge cycle characteristics are further improved. |
