| 摘要 |
PROBLEM TO BE SOLVED: To provide a large discharging capacity and an enhanced high- charging-discharging cycle characteristic by containing one kind of specific compound in a battery. SOLUTION: At least one kind of compound represented by the general formula (a), in which an unsaturated bond adjoins to a hetero atom, is contained in a battery. In the general formula, X is either oxygen, sulfur, or nitrogen, atom, and when X is either oxygen or sulfur atom (n) is 0, and, when it is nitrogen atom, (n) is 1. Also, R<1> to R<5> may be the same or different and are hydrogen atom, halogen atom, or various groups. Each of the groups. when it can be substituted, may be substituted with a substuent. Also, R<1> to R<5> may form a ring by bonding to one another, and the ring may have a substituent. Thus, at least one kind of compound in which an unsaturated bond adjoins to the hetero atom is contained in the battery, whereby the charge-discharge cycle characteristic can be enhanced without damaging the high capacity of the battery. |
