| 摘要 |
Disclosed is a nonaqueous electrolyte solution containing a fluorine-containing cyclic carbonate represented by the formula (A1) below, a specific fluorine-containing solvent, and an electrolyte salt. This nonaqueous electrolyte solution is further excellent in incombustibility and suitable for lithium secondary batteries. (A1) (In the formula, X1-X4 may be the same or different, and respectively represent-H,-F,-CF3,-CHF2,-CH2F,-CF2CF3,-CH2CF3 or-CH2OCH2CF2CF3, provided that at least one of X1-X4 is-F,-CF3,-CF2CF3,-CH2CF3 or-CH2OCH2CF2CF3). |
