| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery improving charge-discharge cycle characteristics and suppressing gas evolution in high temperature storage, and to provide a nonaqueous electrolyte.SOLUTION: The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and the nonaqueous electrolyte containing a solvent and an electrolyte salt. The nonaqueous electrolyte contains the solvent and the electrolyte salt, and the solvent contains a halogenated cyclic carbonate or an unsaturated cyclic carbonate. A polyacid and/or a polyacid compound are/is contained in the battery. In order to obtain gas generation-suppressing effect even at high charging voltage, the polyacid and/or the polyacid compound, and the halogenated cyclic carbonate such as 4-chloro-1,3-dioxolane-2-on are contained in the battery. |
