| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium battery excellent in a preserving characteristic. SOLUTION: Ethylene oxide oligomer whose average polymerization degree is 1 to 500, preferably, 2 to 50, and/or propylene oxide oligomer whose average polymerization degree is 1 to 500, preferably, 2 to 50, is added by 10 to 90 pts.wt., preferably, 30 to 60 pts.wt. in the total quantity to nonaqueous electrolyte 100 pts.wt. Then, the oligomer added to the nonaqueous electrolyte makes reaction of lithium of a negative electrode and a solvent of the nonaqueous electrolyte hardly causable, and can restrains self discharge. |
