Patent ID: 8685562
Filing Date: 2014-04-01
Classification: H01M,Y02E

Abstract:
1. A nonaqueous electrolytic solution comprising: an electrolyte; a nonaqueous solvent; at least one compound selected from the group consisting of (a), (b), (c) and (d): (a) 0.01 wt % to 8 wt % of a cyclic carbonate compound having a carbon-carbon unsaturated bond, (b) 0.01 wt % to 20 wt % of a cyclic carbonate compound having a fluorine atom, (c) a monofluorophosphate, and (d) a difluorophosphate, wherein, if both the cyclic carbonate compound having a carbon-carbon unsaturated bond and the cyclic carbonate compound having a fluorine atom are present, then a total amount of the cyclic carbonate compound having a carbon-carbon unsaturated bond and the cyclic carbonate compound having a fluorine atom is at most 20 wt %, and wherein, if the monofluorophosphate, the difluorophosphate, or both, are present, then a total amount of the monofluorophosphate and the difluorophosphate is 0.001 wt % to 5 wt %; and the nonaqueous electrolytic solution further comprises 0.001 vol % to 5 vol % of a compound of Formula (1), wherein R