| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery of high reliability having a positive electrode decreasing dropping of a battery capacity in the beginning further with a cycle characteristic improvable. SOLUTION: In a nonaqueous electrolyte secondary battery having at least an electrode group constituted by a negative electrode 5 with a carbon substance material serving as a carrier, positive electrode 7 mainly composed of a lithium- containing compound oxide and a separator 6 arranged between both the electrodes, the cell is a nonaqueous electrolyte secondary battery mixing (5 to 15wt.% relating to negative electrode capacity) metal lithium in the positive electrode 7 or between the positive electrode 7 and the separator 6. |
