| abstract |
Abstract: PROBLEM TO BE SOLVED: To ensure the safety of a battery by using an additive that does not adversely affect battery characteristics such as low-temperature characteristics and storage characteristics even when added to an electrolyte solution and that effectively acts against overcharging. It can be so. SOLUTION: The electrolyte solution of the present invention contains an alkylbenzene derivative or a cycloalkylbenzene derivative having a tertiary carbon adjacent to a phenyl group in an organic solvent. And the alkylbenzene derivative is cumene, 1, 3-diisopropylbenzene, 1,4-diisopropylbenzene, 1-methylpropylbenzene, 1,3-bis (1-methylpropyl) benzene, 1,4-bis (1- Methylpropyl) benzene, and the cycloalkylbenzene derivative is selected from cyclohexylbenzene and cyclopentylbenzene. |