| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte solution for a secondary battery restraining gas generation at high-temperature preservation in a charged state, capable of maintaining high voltage even after preservation, achieving battery characteristics with excellent recovery capacity, and effective in improvement of wettability.SOLUTION: The nonaqueous electrolyte solution for a secondary battery, mainly made of electrolyte and a nonaqueous solvent dissolving the same, contains a mononitrile compound with an alkyl group with the carbon number of 11 or more and 30 or less. |
