| 摘要 |
PURPOSE:To improve the preservation characteristic of a nonaqueous electrolyte battery by using cupric oxide treated with a sulfide as the positive active material. CONSTITUTION:After cupric oxide is immersed in a given aqueous solution, the impregnated cupric oxide is washed with water and dried. Next, after graphite used as the conductive agent and a fluoride resin powder used as the binder are added to the treated cupric oxide, the thus prepared mixture is compressed and molded to obtain a molded body. The thus obtained molded body is thermally treated to make a postive electrode. By the means mentioned above, it is possible to suppress the change of impurities, iron or silicon into the oxide and to reduce the activity of the active site. Consequently, the preservation characteristic of the battery can be improved. |
