| abstract |
An electrolyte and a battery capable of improving high-temperature cycle characteristics and high-temperature storage characteristics are provided. A separator provided between a positive electrode and a negative electrode is impregnated with an electrolytic solution. This electrolytic solution includes a solvent, an electrolyte salt, a cyclic sulfone compound, 4-fluoro-1,3-dioxolan-2-one, 4,5-difluoro-1,3-dioxolan-2-one, and vinylene carbonate. And cyclic carbonates such as vinyl ethylene carbonate and methylene ethylene carbonate. [Selection] Figure 1 |