| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery using a lithium manganese compound oxide and a lithium nickel compound oxide for the positive electrode material, having an excellent charge-discharge cycle characteristic, and capable of suppressing a sudden drop in the potential at the positive electrode in the last stage of discharge and also easily suppressing capacity drops occurring due to over-discharging, even when the depth of discharge is increased, thereby obtaining a sufficient capacity. SOLUTION: In the nonaqueous electrolyte secondary battery provided with a positive electrode 121, a negative electrode 12, and a nonaqueous electrolyte 14, a sintered material is used as the positive electrode material made by mixing and sintering the lithium manganese compound oxide and the lithium nickel compound oxide. |
