Kabushiki Kaisha Toshiba

Noriaki Sato

Satoshi Takayama

Takao Sawa

Masami Okamura

Tomohisa Arai

Keisuke Hashimoto

Shusuke Inada

Takamichi Inaba

Tetsuo Okuyama

Fumiyuki Kawashima

Nanao Nakamura

Toshiya Sakamoto

Tadayuki Nakamura

There is provided a hydrogen-absorbing alloy for battery comprising a rapidly-quenched alloy having the composition represented by a general formula ANi.sub.a M.sub.b M'.sub.c T.sub.d (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.ltoreq.a.ltoreq.4.0, 0.4.ltoreq.b.ltoreq.1.0, 0.3.ltoreq.c.ltoreq.0.8, 0.ltoreq.d.ltoreq.0.2, 4.9.ltoreq.a+b+c+d.ltoreq.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.degree. 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.

Hydrogen-absorbing alloy for battery and secondary nickel-metal hydride

A thermal transfer recording medium includes a sheet-like base member and a hot-melt ink layer containing a colorant and a hot-melt material. The hot-melt ink layer contains a hot-melt material having a melting point Tm of 70.degree. to 90.degree. C., a complex elastic modulus of 10.sup.6 Pa to 10.sup.7 Pa at 100.degree. C., and a pour point Tp of 150.degree. C. or more, the hot-melt ink layer is in an amorphous or microcrystalline state and satisfies condition I/I.sub.0 .ltoreq.0.9 where I is the diffraction peak intensity in a range of 21.3.degree. to 21.5.degree. originated from an ethylene-based crystal and measured by an x-ray diffraction method, and I0 is the halo intensity in a range of 16.degree. to 17.degree. originated from an amorphous part, or the hot-melt ink layer contains a low-melting point crystalline material having a specific acid value and a specific saponification value and 15 to 30 wt % of a specific copolymer resin whose ethylene content is 65 to 80 wt % and a melt index of 60 or less.

Thermal transfer recording medium

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Yokohama, Japan

Noriaki Sato