Provided is an electrolytic solution in which the residual volume does not readily decrease and the resistance increase rate does not readily change, even when the electrolyte solution is stored at high temperature. The electrolytic solution is characterized by containing a fluorinated carbonate, a specific additive, and a compound (1) represented by general formula (1) that is R<11>CFX<11>(CH2)COOR<12> (where R<11> is H, F, a C1-C3 non-fluorinated alkyl group, or a C1-C3 fluorinated alkyl group; X<11> is H or F; R<12 is a C1-C3 non-fluorinated alkyl group or a C1-C3 fluorinated alkyl group; and n11 is an integer from 0 to 3).