| 摘要 |
PURPOSE:To provide excellent battery characteristics such as storing characteristic and cycle characteristic by adding a specified azo compound to an nonaqueous electrolyte. CONSTITUTION:An nonaqueous electrolyte battery has a negative electrode using a material capable of storing and releasing metal lithium or lithium as the negative electrode material, a positive electrode, and an nonaqueous electrolyte. In the nonaqueous electrolyte battery, an azo compound represented by the formula is added to the nonaqueous electrolyte. In the formula, R<1>, R<2>, R<3>, R<4> each represents a hydrogen atom or hydrocarbon group independently. Examples of the azo compound include 4,4'-tetramethyldiamino azobenzene, 4,4'-tetraethyldiamino azobenzene, 4,4'-tetrapropyldiamino azobenzene, 4,4'- tetrabutyldiamino azobenzene, and 4,4'-tetraphenyldiamino azobenzene. |
