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    • 8. 发明授权
    • Hydrogen-absorbing alloy of ultra high capacity for electrode of
secondary battery
    • 二次电池电极超高容量吸氢合金
    • US5922146A
    • 1999-07-13
    • US761440
    • 1996-12-06
    • Jai-Young LeeHan-Ho LeeKi-Young LeeJae-Han JungDong-Myung KimJi-Sang Yu
    • Jai-Young LeeHan-Ho LeeKi-Young LeeJae-Han JungDong-Myung KimJi-Sang Yu
    • H01M4/38C22C30/00
    • H01M4/383Y10S420/90
    • The present invention provides a hydrogen-absorbing alloy system of ultra high capacity for electrode of secondary battery. In accordance with the present invention, the hydrogen-absorbing Ti alloy system is represented as a following general formula:Ti.sub.A Zr.sub.B V.sub.C Mn.sub.D Ni.sub.E M.sub.Fwherein, M represents at least one metal which is selected from the group consisting of Cr, Co, Fe, Cu, Al, Si, Hf, Nb, Mo and R.E., where R.E. represents at least one metal which is selected from the group of rare-earth elements consisting of La, Ce, Pr, Nd and Sm; and, A, B, C, D, E and F have atomic ratios ranging 0.2.ltoreq.A.ltoreq.0.35, 0.03.ltoreq.B.ltoreq.0.15, 0.15.ltoreq.C.ltoreq.0.4, 0.8.ltoreq.D.ltoreq.0.2, 0.13.ltoreq.E.ltoreq.0.35 and 0.ltoreq.F.ltoreq.0.1, respectively, with the proviso that A+B+C+D+E+F=1 and A+B.ltoreq.0.45. The hydrogen-absorbing Ti alloy system of the invention, has molar molecular weight of 50 to 65 g/mol, C14-hexagonal crystalline structure of single phase, lattice constant of a: 4.902-5.004 .ANG. and c: 7.972-8.168 .ANG., ultra high discharge capacity of 400 mAh/g or more, which can be employed as an anode material of a Ni--MH secondary battery.
    • 本发明提供一种二次电池用电极的超高容量吸氢合金体系。 根据本发明,吸氢钛合金体系由以下通式表示:TiAZrBVCMnDNiEMF其中,M表示选自Cr,Co,Fe,Cu,Al,Si中的至少一种金属, Hf,Nb,Mo和RE,其中RE 表示选自由La,Ce,Pr,Nd和Sm组成的稀土元素组中的至少一种金属; 并且,A,B,C,D,E和F的原子比范围为0.2≤A≤0.35,0.03≤B≤0.15,0.15≤0.4,0.8, = D