| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydrogen storage alloy electrode having no aggregation substance of nickel powder to be seen in the hydrogen storage alloy electrode with nickel added as conductive power. SOLUTION: This electrode is formed by having an electrode mixture containing hydrogen storage alloy powder, conductive powder, and a binding agent on a conductive base material. In the conductive powder, primary particles are spherical, the aggregation of the primary particles has a three dimensional chain structure, the diameter of the chain column is 0.5μm or less, a crystal size measured by powder X-ray diffraction measurement is 300Åor less, and nickel powder of an oxygen content of 0.5 to 1.5 wt.% is contained.
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