| abstract |
In a nonaqueous electrolytic solution in which an electrolyte salt is dissolved in a nonaqueous solvent, LiPF 2 (—OC (═O) —C (═O) O—) 2 is contained, and carbon-carbon represented by the following formula Provided is a nonaqueous electrolytic solution and an electricity storage device characterized by containing at least one compound having a triple bond. (In the formula, R 1 and R 2 represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms which may be substituted with a halogen, R 3 represents a methyl group or an ethyl group. X represents a hydrogen atom or It shows a -CR 1 R 2 -OS (= O ) 2 -R 3.) |