| 摘要 |
There is provided a hydrogen-absorbing alloy for battery comprising a rapidly-quenched alloy having the composition represented by a general formula ANiaMbM'cTd (where, A is composed of La, Ce, Pr, Nd and Y, an amount of La content in A is 50-99 wt %, an amount of Ce content is 1-30 wt %, an amount of Pr content is 0-10 wt %, an amount of Nd content is 0-10 wt % and an amount of Y content is 0-10 wt %; M is at least one element selected from Co, Fe and Cu; M' is at least one element selected from Mn and Al; T is at least one element selected from B, Si, S, Cr, Ga, Ge, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Bi, P, V, Nb, Ta and W; and a, b, c and d are atomic ratios and satisfy 3.2</=a</=4.0, 0.4</=b</=1.0, 0.3</=c</=0.8, 0</=d</=0.2, 4.9</=a+b+c+d</=5.4), characterized in that a hydrogen equilibrium pressure when the number of hydrogen atoms absorbed by one atom of the alloy at a temperature of 60 DEG C. is 0.4 is 0.05-0.6 atm. With the above arrangement, a hydrogen-absorbing alloy capable of realizing a small decrease in capacity under the low-temperature area and high-temperature area, a large electrode capacity in a wide temperature range, and a long life, and a secondary nickel-metal hydride battery using this alloy can be obtained./! |
| 申请人 |
K.K. TOSHIBA, KAWASAKI |
发明人 |
INABA, TAKAMICHI;SAWA, TAKAO;INADA, SHUSUKE;KAWASHIMA, FUMIYUKI;SATO, NORIAKI;SAKAMOTO, TOSHIYA;OKAMURA, MASAMI;ARAI, TOMOHISA;HASHIMOTO, KEISUKE |
