| 摘要 |
PROBLEM TO BE SOLVED: To provide a sodium secondary battery capable of being stably charged/discharged.SOLUTION: The sodium secondary battery includes: a cathode; an anode; and nonaqueous electrolyte. A nonaqueous solvent included in the nonaqueous electrolyte, includes a chain carboxylic acid ester which has a fluoro group expressed by a general formula (1), where: Ris an aromatic group, an unsaturated aliphatic group or a saturated aliphatic group; Rto Rare H, aromatic group, unsaturated aliphatic group or saturated aliphatic group; at least one of Rto Rare one or more fluoro groups. |
