Abstract:
Alloy powder for electrodes that includes particles of a hydrogen-absorbing alloy having an AB2 type crystal structure. The hydrogen-absorbing alloy includes first elements that are located in an A site in the crystal structure and include Zr, and second elements that are located in a B site and include Ni and. Mn. The hydrogen-absorbing alloy includes a plurality of alloy phases having different Zr concentrations. In each of the alloy phases, the percentage of Zr in the first elements exceeds 70 atom %.
Abstract:
Alloy powder for electrodes includes first hydrogen-absorbing alloy particles having a spherical core portion, and non-spherical second hydrogen-absorbing alloy particles. The average particle diameter of the first hydrogen-absorbing alloy is 50 μm or less. The content of the first hydrogen-absorbing alloy is less than 30 vol %.
Abstract:
A hydrogen-absorbing alloy included in alloy powder for electrodes includes elements L, elements M, Ni, Co, and elements E. L include La as an essential component. L do not include Nd, or, even when L include Nd, the percentage of Nd in L is 5 mass % or less. Furthermore, M include at least Mg, E include at least Mn, and molar ratio α1 of Mg to the sum total of L and M satisfies 0.000
Abstract:
A hydrogen-absorbing alloy is provided in which an X-ray diffraction image generated by 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°.