| 摘要 |
The present invention is to provide a nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent and an energy storage device, wherein the nonaqueous electrolytic solution includes LiPF 2 (-OC(=O)-C(=O)O-) 2 and at least one kind of a compound having a carbon-carbon triple bond represented by the following general formula (I) :
(wherein R 1 and R 2 each independently represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a halogen atom; and R 3 represents a methyl group or an ethyl group. X represents a hydrogen atom or - CR 1 R 2 -OS(=O) 2 -R 3 .) |
