| abstract |
(57) [Summary] [Purpose] Oxygen generation overvoltage by containing at least one of yttrium, indium, antimony, barium, and beryllium compounds in a nickel positive electrode, and at least one of cobalt and calcium compounds. To improve the utilization rate of nickel hydroxide over a wide temperature range. [Structure] The nickel positive electrode is yttrium, indium, It is configured to include at least one of antimony, barium, and beryllium compounds. Further, the nickel positive electrode was configured to contain at least one of cobalt and calcium compounds. |