| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-sintered nickel electrode for an alkaline storage battery of a high active material utilization factor, when charged at room temperature and moreover with less reduction of the active material utilization factor, when charged at high temperature. SOLUTION: To an active material powder comprising nickel hydroxide grain or solid solution grain of nickel hydroxide in which a swelling restricting element is solved, metal cobalt and/or cobalt compound, and mixed crystals of diyttrium trioxide and zirconium dioxide and/or mixed crystals of diyttrium trioxide and dibismuth trioxide are added. As the solid solution grain, one with a ratio of swelling restricting element of 5-50 wt.% is favorable. |
