| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolyte for a nonaqueous battery capable of enhancing storage characteristics at high temperature after charge and charge/discharge cycle characteristics, and a nonaqueous electrolyte secondary battery. SOLUTION: The nonaqueous electrolyte contains at least one kind of phosphate derivative represented by formula (1): (R1aO)(R2aO)P(O)X, and formula (2): (R1bO)P(O)X2 (in the formulas, R1a, R2a, and R1b are independently a 1-12C aliphatic hydrocarbon group, and X is a halogen atom.), and the nonaqueous system secondary battery is manufactured by using the nonaqueous electrolyte. |
