Hydrogen storage alloy for alkaline storage batteries

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[Problem]We will provide hydrogen storage alloys suitable for anodes of alkaline storage batteries. Solution : In X-ray diffraction measurement using Cu-Kα rays as an X-ray source, including at least one hydrogen storage alloy having an A2B7 crystal structure in the main phase, which includes rare earth elements, magnesium and nickel, and aluminum, zinc, tin, and silicon, 2θ = 32. 5～33． 2θ = 31.0 for diffraction line strength Ia on the (107) surface of the A2B72H structure appearing at 5 °. 5～32． The ratio ib / Ia of diffraction line strength Ib on the (109) surface of the A5B192H structure appearing at 5 ° is 0.5 % 05 or more 1. A hydrogen storage alloy that is 0 or less is provided. [Selection Figure]Figure 1