Hydrogen-absorbing alloy

摘要

There is provided a hydrogen-absorbing alloy which contains an alloy ingot manufactured by means of a casting or sintering method or a pulverized product of the alloy ingot, and the alloy ingot being represented by the following general formula (1), $wherein\; R1\; is\; at\; least\; one\; element\; selected\; from\; rare\; earth\; elements\; (including\; Y),\; M1\; is\; at\; least\; one\; element\; selected\; from\; elements\; having\; a\; larger\; electronegativity\; than\; that\; of\; Mg\; (excluding\; the\; elements\; of\; R1,\; Cr,\; Mn,\; Fe,\; Co,\; Cu,\; Zn\; and\; Ni),\; and\; a,\; b\; and\; z\; are\; respectively\; a\; number\; satisfying\; conditions\; 0.10,\; and\; 3$