| 摘要 |
PROBLEM TO BE SOLVED: To provide a nickel electrode for an alkaline storage battery with excellent high temperature performance and high rate discharge characteristics by filling paste prepared by adding a rare earth element, cobalt monoxide, and α cobalt hydroxide to nickel hydroxide acting as a main active material in a nickel porous substrate. SOLUTION: The specified amounts of a rare earth element, cobalt monoxide, and α cobalt hydroxide or β cobalt hydroxide are added to nickel hydroxide acting as a main active material, they are mixed, and a thickening agent is added thereto to prepare a pasty mixture. As the rare earth element, at least one of Ho, Er, Tm, Yb, Lu, and Y is added in the form of compound (for example, Yb2 O3 , Lu2 O3 ). The pasty mixture is filled in a nickel porous substrate, dried, and they are pressed to manufacture a nickel electrode. The nickel electrode for an alkaline storage battery with excellent high temperature performance and high rate discharge characteristics is obtained. |
