| 摘要 |
PROBLEM TO BE SOLVED: To improve charge and discharge characteristics of a lithium secondary battery by improving the nonaqueous electrolytic solution for the lithium secondary battery having a negative pole 1 of lithium - aluminum - manganese alloy using the lithium as an active material, a positive pole 2 and a nonaqueous electrolytic solution comprising solute and solvent. SOLUTION: At least one of trialkyl phosphite, trialkyl phosphate, trialkyl borate, dialkyl sulfate and dialkyl sulfite is selected and added to the solvent of the nonaqueous electrolytic solution. |
