| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolytic solution which enables the enhancement of an electrochemical property in a wide temperature range; and a power storage device using such a nonaqueous electrolytic solution.SOLUTION: A nonaqueous electrolytic solution comprises: a nonaqueous solvent; an electrolyte salt dissolved in the nonaqueous solvent; and at least one lithium phosphate expressed by the general formula (I) in which a particular polar group (X) is directly coupled to a phosphorus atom (P). A power storage device comprises the nonaqueous electrolytic solution. (In the general formula (I), R is an organic group selected from a group consisting of an alkyl group with 1-8C, an alkenyl group with 2-6C, an alkynyl group with 3-6C and an aryl group with 6-12C, in which part of hydrogen atoms may be substituted with a halogen atom, or a lithium atom; and X is a polar group including a -C(=O) group, a -P(=O) group or a -S(=O)group.)SELECTED DRAWING: None |
