HYDROGEN-ABSORBING ALLOY, ALLOY POWDER FOR ELECTRODE, NEGATIVE ELECTRODE FOR ALKALINE STORAGE BATTERY, AND ALKALINE STORAGE BATTERY

摘要

The present invention provides a hydrogen-absorbing alloy for implementing a high capacity, long-lived alkaline storage battery. For this hydro-absorbing alloy, the X-ray diffraction image using CuKα rays has at least one peak selected from (1) peak (Psp1) at 2θ = 32.25 ± 0.15°, (2) peak (Psp2) at 2θ = 33.55 ± 0.15°, and (3) peak (Psp3) at 2θ = 37.27 ± 0.15°.