A nonaqueous electrolytic solution comprising a cyclobutenedione derivative represented by the following general formula (1): wherein R1 represents an organic group having a carbon-carbon double bond or a carbon-carbon triple bond in its structure, and R2 represents an alkyl group having 1-6 carbon atoms, an alkoxy group having 1-6 carbon atoms, a thioalkyl group having 1-6 carbon atoms, a substituted or unsubstituted thioaryl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group.