C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 14/00 (2006.01) C22C 27/02 (2006.01) C22C 27/06 (2006.01) C22C 30/00 (2006.01) H01M 4/24 (2006.01) H01M 4/38 (2006.01)
Patent
CA 2268534
To provide a hydrogen. absorbing alloy having a BCC (body-centered cubic structure) as a crystal structure, and particularly a hydrogen-absorbing alloy for a nickel-hydride yell having excellent discharge capacity and durability (cycle characteristics), said hydrogen-absorbing alloy having a composition expressed by the general formula Ti(100-a-b-c-d)Cr a V b Ni c X d, where X is at least one member selected from the group consisting of Y (yttrium), lanthanoids, Pd and Pt, and each of a, b, c and d is represented, in terms of at%, by the relations 8 <= a <= 50, 30 < b <= 60, 5 <= c. <= 15, 2 <= d <= 10 and 40 <= a + b + c + d <= 90, wherein the crystal structure of a principal phase is a body-centered cubic structure, and further, the alloy contains at least one of Mo and W in place of V and at least one member selected from the group consisting of Y (yttrium), lanthanoids, Pd and Pt, and its crystal structure is converted to the body-centered cubic structure by heat-treatment.
Iba Hideki
Mori Toshihiro
Gowling Lafleur Henderson Llp
Toyota Jidosha Kabushiki Kaisha
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