| 摘要 |
PROBLEM TO BE SOLVED: To provide an additive agent for nonaqueous electrolytic solution which enables the improvement of battery characteristics including battery life and capacity by forming, on an electrode surface, a stable solid electrolyte interface when being used for an electric power storage device, and to provide a nonaqueous electrolytic solution arranged by use of such an additive agent for nonaqueous electrolytic solution, and an electric power storage device arranged by use of such a nonaqueous electrolytic solution.SOLUTION: An additive agent for nonaqueous electrolytic solution comprises a succinimide disulfonate compound expressed by the following formula (1). In the formula (1), R, R, R, and Reach represent a hydrogen atom, a halogen atom, an alkyl group having 1-6 carbon atoms which may be substituted, or an o-phenylene group which is produced by coupling one of Rand Rwith one of Rand R, and which may be substituted. |
