| 摘要 |
Disclosed are a nonaqueous electrolytic solution of an electrolyte dissolved in a nonaqueous solvent, which contains a carboxylate represented by the following general formula (III-I) in an amount of from 0.01 to 5% by mass of the nonaqueous electrolytic solution; and an electrochemical element using it. :
wherein X 31 represents -A 2 -C‰¡Y 2 , -A 2 -C (=O) O-A 3 -C‰¡Y 2 or -A 2 -C(=O)O-A 4 ; A 1 , A 2 and A 3 each independently represent an alkylene group having from 1 to 6 carbon atoms; A 4 represents an alkyl group having from 1 to 6 carbon atoms; Y 1 and Y 2 each independently represent CH or N. |
