| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte which suppresses deterioration in battery characteristics during high-temperature storage and suppresses gas generation, and to provide a secondary battery using the nonaqueous electrolyte.SOLUTION: The nonaqueous electrolyte contains a phosphoric ester compound represented by following formula (1) (wherein at least one of R, R, and Rrepresents an organic group containing atoms selected from group 15 or 16 heteroatoms, and at least one of R, R, and Rrepresents a group having an unsaturated bond). |
