| 摘要 |
PURPOSE:To make difficult the decomposition (heat generating reaction) of an electrolyte and an abnormal increase in temperature of a battery even if a temperature of the battery is somewhat increased due to short-circuiting. CONSTITUTION:A nonaqueous battery comprises transition metal composite oxide powder expressed by a composition formula: LixNiyCozOa (wherein 0<x<1.3, y+z:1, y>z, and 1.8<=a<=2.2) as a positive electrode active material, and a material capable of storing and discharging metal lithium or a lithium ion as a negative material. In this nonaqueous battery, a layer including boron, phosphor or nitrogen is formed at the surface of each particle constituting the transition metal composite oxide powder. |
