| 摘要 |
A non-aqueous electrolyte battery of the present invention includes a positive electrode 1, a negative electrode 2, a separator 3, and a non-aqueous electrolyte. The non-aqueous electrolyte contains a lithium salt, a cyclic sultone derivative, and an acid anhydride, wherein the non-aqueous electrolyte contains the cyclic sultone derivative in an amount of 0.3 to 3% by mass and the non-aqueous electrolyte contains the acid anhydride in an amount of 0.3 to 3% by mass. Furthermore, in the non-aqueous electrolyte battery, the non-aqueous electrolyte includes at least one selected from a cyclic sultone derivative and an acid anhydride, and an electrolyte salt. The electrolyte salt contains lithium salt A and lithium salt B. The lithium salt A is at least one selected from LiBF4, LiPF6, LiAsF6, and LiSbF6, and the lithium salt B is a lithium salt other than the lithium salt A. The electrolyte contains the lithium salt A in an amount of 2 mol% or more based on the total amount of the electrolyte salt. <IMAGE> |
