C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 30/00 (2006.01) C01B 3/00 (2006.01) C22C 14/00 (2006.01) H01M 4/38 (2006.01)
Patent
CA 2268620
A BCC type hydrogen-absorbing alloy, which uses a ferroalloy, is advantageous from the aspect of the production cost and exhibits excellent hydrogen absorption and desorption characteristics due to a fine structure constituted by spinodal decomposition even when the iron component is increased. The hydrogen-absorbing alloy is expressed by the general formula A x Va y B z, where A is at least one of Ti and Zr, Va is at least one member of the Group Va elements of the Periodic Table consisting of V, Nb and Ta, and B contains at least Fe and is at least one member selected from the group consisting of Cr, Mn, Co, Ni, Cu, Al, Mo and W, each of x, y and z satisfies the relation, in terms of of the atomic number ratio, 0 ~ x ~ 70, 0 ~ y ~ 50, x + y + z = 100, and x/z = 0.25 to 2.0, the phase of the body-centered cubic structure is at least 50% in terms of the phase fraction and its lattice constant is at least 0.2950 nm but not greater than 0.3100 nm.
Iba Hideki
Kurimoto Yasuhide
Mori Toshihiro
Gowling Lafleur Henderson Llp
Toyota Jidosha Kabushiki Kaisha
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