| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery with an improved reservation property in charging in which generation of self-discharge caused by contact reaction between an electrode material and a nonaqueous electrolyte solution is suppressed by mixing a solvent consisting of a specific sulfonic compound with a solvent in a nonaqueous electrolytic solution. SOLUTION: A nonaqueous electrolyte battery is provided with a positive electrode, a negative electrode, and a nonaqueous electrolytic solution. A solvent of the nonaqueous electrolytic solution contains one or more kind of a solvent consisting of a sulfonic compound represented by a formula: R1 -SO2 -R2 (R1 , R2 represent different alkyl groups of C1-4 ). A content of the sulfonic compound ranges from 1 to 80% by volume desirably. When a carbonous material which can store/release a lithium ion is used for the negative electrode, a reaction with the nonaqueous electrolytic solution is suppressed further, so that a reservation characteristic of the nonaqueous electrolyte battery is improved further. |
