NONAQUEOUS ELECTROLYTE, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY ARRANGED BY USE THEREOF

PROBLEM TO BE SOLVED: To provide: a nonaqueous electrolytic solution which enables the improvement of cycle characteristics; and a nonaqueous electrolytic secondary battery arranged by use of such a nonaqueous electrolytic solution.SOLUTION: A nonaqueous electrolytic solution is used for a nonaqueous electrolytic secondary battery including a positive electrode having a positive electrode active material capable of occluding and releasing metal ions, and a negative electrode having a negative electrode active material capable of occluding and releasing metal ions. The nonaqueous electrolytic solution comprises a compound expressed by the following general formula (1), and at least one compound selected from a group consisting of a cyclic carbonate compound having an unsaturated bond, a cyclic carbonate compound having a fluorine atom, a nitryl compound, an isocyanate compound, an aromatic carbon hydride, a fluorinated benzene compound, a monofluorophosphate, and difluorophosphate: [Formula (1)] (where R, R, R, R, R, and Rrepresent a hydrogen atom, a fluorine atom, an alkyl group, an alkenyl group, an alkynyl group, or an aryl group independently of one another.)