| 摘要 |
A negative electrode material for a nickel-metal hydride battery containing a hydrogen-absorbing alloy represented by a general formula: Mm 1-a T 1 a Ni x Al y Mn z Co b T 2 c, in which: Mm is at least one of light rare earth elements; T 1 is at least one selected from the group consisting of Mg, Ca, Sr and Ba; T 2 is at least one selected from the group consisting of Sn, Cu and Fe; and 0.015 ‰¦ a ‰¦ 0.5, 2.5 ‰¦ x ‰¦ 4.5, 0.05 ‰¦ y + z ‰¦ 2, 0 ‰¦ b ‰¦ 0.6, 0 ‰¦ c ‰¦ 0.6 and 5.6 ‰¦ x + y + z + b + c ‰¦ 6 are satisfied. |
