| 主权项 |
1. A nonaqueous electrolytic solution, comprising an electrolyte salt dissolved in a nonaqueous solvent comprising:
from 0.001 to 5% by mass of 1,3-dioxane; and from 0.001 to 5% by mass of at least one selected from the group consisting of a phosphoric acid ester compound represented by the following general formula (I), a cyclic sulfonic acid ester compound represented by the following general formula (II), and a cyclic acid anhydride comprising a side chain comprising an allyl hydrogen: wherein: each of R1 and R2 independently represents an alkyl group having from 1 to 6 carbon atoms or a halogenated alkyl group having from 1 to 6 carbon atoms, in which at least one hydrogen atom is substituted with a halogen atom; R3 represents an alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, or an alkynyl group having from 3 to 6 carbon atoms; and each of R4 and R5 independently represents a hydrogen atom, a halogen atom, or an alkyl group having from 1 to 4 carbon atoms; wherein: each of R6 and R7 independently represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, in which at least one hydrogen atom is optionally substituted with a halogen atom, or a halogen atom; X represents —CH(OR8)— or —C(═O)—; and R8 represents a formyl group, an alkyl carbonyl group having from 2 to 7 carbon atoms, an alkenyl carbonyl group having from 3 to 7 carbon atoms, an alkynyl carbonyl group having from 3 to 7 carbon atoms, or an aryl carbonyl group having from 7 to 13 carbon atoms, in which at least one hydrogen atom in R8 is optionally substituted with a halogen atom. |
