| 摘要 |
PROBLEM TO BE SOLVED: To improve electric conductivity and charge and discharge characteristics of an electrolyte by adding a predetermined quantity of a specific compound for an electrolyte. SOLUTION: This battery has a positive electrode having a lithium-containing oxide as an active substance, a negative electrode employing a carbon material for absorbing and discharging lithium, and a non-aqueous electrolyte. To this electrolyte, an aromatic compound of 0.1 to 20 volume % having one or more non-covalent electron pairs formed containing different kinds of elements other carbon. By employing such a compound, for example, pyridine or the like, movement resistance of a lithium ion is decreased, and dissociation of the ion pairs is accelerated. As a result, electric conductivity of an electrolyte is improved, and charge and discharge characteristics of a battery can be improved. |
