초록 ▼

There is provided a hydrogen-absorbing alloy comprising at least one crystal phase consisting essentially of at least one unit cell which has a laminate structure comprising at least one A.sub.2 B.sub.4 subcell and at least one AB.sub.5 subcell, and the aforementioned at least one unit cell satisfyi

There is provided a hydrogen-absorbing alloy comprising at least one crystal phase consisting essentially of at least one unit cell which has a laminate structure comprising at least one A.sub.2 B.sub.4 subcell and at least one AB.sub.5 subcell, and the aforementioned at least one unit cell satisfying the following formula (1),

대표청구항 ▼

[ What is claimed is:] [1.]1. A hydrogen-absorbing alloy comprising at least one crystal phase consisting essentially of at least one unit cell, said at least one unit cell having a structure formed by laminating a plurality of unit structures including at least one A.sub.2 B.sub.4 unit structure an

[ What is claimed is:] [1.]1. A hydrogen-absorbing alloy comprising at least one crystal phase consisting essentially of at least one unit cell, said at least one unit cell having a structure formed by laminating a plurality of unit structures including at least one A.sub.2 B.sub.4 unit structure and at least one AB.sub.5 unit structure so as to share atoms present at a boundary of neighboring unit structures, and said at least one unit cell satisfying the following formula (1);wherein A is at least one kind of element which is capable of generating heat of formation .DELTA.H of less than 20 kJ/mol at the occasion of generating a hydride from one mole of hydrogen at a temperature of 25.degree. C.; B is at least one kind of element which is capable of generating heat of formation .DELTA.H of not less than 20 kJ/mol at the occasion of generating a hydride from one mole of hydrogen at a temperature of 25.degree. C.; and X is a ratio in number of said at least one A.sub.2 B.sub.4 unit structure to said at least one AB.sub.5 unit structure.