| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydrogen storage alloy having improved hydrogen absorbing/desorbing properties. <P>SOLUTION: The hydrogen storage alloy is characterized in that it includes an alloy ingot manufactured by a casting method or a sintering method and having a composition represented by the following general formula (2) or a pulverized material of the alloy ingot. Mg<SB>1-a</SB>R1<SB>a</SB>(Ni<SB>1-x</SB>M2<SB>x</SB>)<SB>z</SB>... (2) (wherein, R1 denotes at least one element selected from rare earth elements including Y: M2 denotes at least one element selected from among Cr, Mn, Fe, Co, Cu and Zn; and (a), (x) and (z) satisfy 0.1≤a≤0.8, 0<x≤0.9 and 3≤z≤3.8, respectively). <P>COPYRIGHT: (C)2009,JPO&INPIT |
