| 摘要 |
PURPOSE:To improve a self-discharge characteristic by having a negative electrode composed of lithium, a lithium alloy or a lithium compound; a positive electrode having the active material of the composite oxide of a manganese main body; and a nonaqueous electrolyte; and adding an alkaline metal hydroxide to the positive electrode. CONSTITUTION:A battery is composed of a positive electrode 1, case 2, separator 3, negative electrode 4, sealing plate 5, and gasket 6. The battery has the negative electrode 4 composed of lithium, a lithium alloy, or a lithium compound; the positive electrode 1 having the active material of the composite oxide of a manganese main body represented in LiMn2-XMeXO4 (Me: at least one kind out of Co, Cu, Ni, Ta, and Zn): and a nonaqueous electrolyte and at least one kind of an alkaline metal hydroxide, such as lithium hydroxide LiOH, potassium hydroxide KOH, and sodium hydroxide NaOH, is added to the positive electrode 1. In this case, the alkaline metal hydroxide acts on the restraint of the resolution of an organic electrolyte or on reaction to resolution products. This can improve a self-discharge characteristic. |
