| abstract |
The present invention aims to provide an electrolytic solution which restrains gas generation and has excellent battery characteristics. The electrolytic solution includes a nonaqueous solvent (I), an electrolyte salt (II), and 0.001 to 20% by mass of a compound represented by the formula (1) or the formula (A), n R 1 —ORf 1 —(ORf 2 ) l —(ORf 3 ) m —CN (1)n n wherein R 1 represents CH 3 —Rf—, CH 2 F—Rf—, or CHF 2 —Rf—, and Rf in R 1 represents an alkylene group which may optionally have a fluorine atom, n Rf 1 , Rf 2 , and Rf 3 may be the same as or different from each other, and individually represent a C1-C3 fluorinated alkylene group, and n l and m may be the same as or different from each other, and individually represent an integer of 0 to 5, n RA 1 -ORf A1 —(ORf A2 ) l —(ORf A3 ) m —CN (A)n n wherein R A1 represents a C2-C9 group having an unsaturated bond, n Rf A1 , Rf A2 , and Rf A3 may be the same as or different from each other, and individually represent a C1-C3 alkylene group which may optionally have a fluorine atom, and n l and m may be the same as or different from each other, and individually represent an integer of 0 to 5. |