Nickel electrodes for alkaline secondary battery and alkaline secondary batteries

摘要

A nickel electrode for alkaline secondary battery including a porous sintered nickel substrate loaded with a nickel hydroxide-based active material, the nickel electrode has a configuration wherein a surface portion of the active material loaded into the sintered nickel substrate is provided with a coating layer of a complex compound of nickel and at least one element selected from the group of cobalt, calcium, strontium, scandium, yttrium, lanthanide, bismuth, magnesium and barium is formed between the sintered nickel substrate and the active material.