| 摘要 |
In order to suppress deterioration in battery characteristics of a non-aqueous electrolyte secondary battery at a high temperature and to reduce the amount of gas generated within the battery, as a solute constituting an electrolyte, at least one selected from the group consisting of LiPF6, LiBF4, LiSbF6 and LiAsF6 as well as at least one selected from the group consisting of LiPFa(CbF2b+1)6a. LiPFc(CdF2d+1SO2)6-c, LiBFe(CfF2f+1)4-e, LiBFg(ChF2h+1SO2)4-g are used.
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