| 摘要 |
An electrolytic solution capable of improving battery characteristics even at high temperature, and a battery using the electrolytic solution are provided. A separator is impregnated with an electrolytic solution. The electrolyic solution includes a cyclic imide salt such as 1,1,2,2,3,3-hexafluoropropane-1,3-disulfonimide lithium and a light metal salt such as difluoro[oxalato-O,O'] lithium borate or bis[oxalato-O,O'] lithium borate. Thereby, the decomposition reaction of the electrolytic solution can be prevented even at high temperature, and the battery characteristics can be improved.
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