Hydrogen-absorbing alloy for battery, method of manufacturing the same, and secondary nickel-metal hydride battery
    3.
    发明公开
    Hydrogen-absorbing alloy for battery, method of manufacturing the same, and secondary nickel-metal hydride battery 失效
    电池用氢吸收合金,其制造方法以及二次镍氢电池

    公开(公告)号:EP0588310A3

    公开(公告)日:1994-03-30

    申请号:EP93114777.1

    申请日:1993-09-14

    IPC分类号: H01M4/38 C22C45/04

    摘要: A hydrogen-absorbing alloy for battery according to the present invention comprises an alloy having the composition represented by a general formula A Ni a Mn b M c [where, A is at least one kind of element selected from rare earth elements including Y (yttrium), M is a metal mainly composed of at least one kind of element selected from Co, Al, Fe, Si, Cr, Cu, Ti, Zr, Zn, Hf, V, Nb, Ta, Mo, W, Ag, Pd, B, Ga, In, Ge and Sn, 3.5≦ a≦ 5, 0.1 ≦ b ≦ 1, 0 ≦ c ≦ 1, 4.5≦ a + b + c≦ 6], wherein the alloy has columnar structures in which the area ratio of the columnar structures having the ratio of a minor diameter to a major diameter (aspect ratio) of 1 : 2 or higher is 50 % or more. Further, an average minor diameter of the columnar structures is set to 30 microns or less. With this arrangement, there can be provided a nickel-metal hydride battery capable of satisfying the three leading characteristics of a high electrode capacity, long life and good rising-up all together.

    摘要翻译: 根据本发明的电池用吸氢合金包含具有由通式A表示的组成的合金:Nia Mnb Mc [其中,A是从包括Y(钇)的稀土元素中选择的至少一种元素,M 是主要由选自Co,Al,Fe,Si,Cr,Cu,Ti,Zr,Zn,Hf,V,Nb,Ta,Mo,W,Ag,Pd,B, Ga,In,Ge和Sn,3.5≤a≤5,0.1≤b≤1,0≤c≤1,4.5≤a+ b +c≤6],其中所述合金具有柱状结构,其中所述 具有1:2或更高的短径与长径比(纵横比)的柱状结构体为50%以上。 此外,柱状结构的平均短径设定为30微米或更小。 通过这种设置,可以提供一种能够满足高电极容量,长寿命和良好起伏的三个主要特征的镍 - 金属氢化物电池。

    Hydrogen-absorbing alloy for battery, method of manufacturing the same, and secondary nickel-metal hydride battery
    5.
    发明公开
    Hydrogen-absorbing alloy for battery, method of manufacturing the same, and secondary nickel-metal hydride battery 失效
    储氢合金用于电池的,它们的制备和镍 - 金属氢化物二次电池的过程

    公开(公告)号:EP0789409A1

    公开(公告)日:1997-08-13

    申请号:EP96120848.5

    申请日:1993-09-14

    IPC分类号: H01M4/38 C22C45/04

    摘要: The present invention concerns a hydrogen-absorbing alloy for a battery, wherein at least 90 vol-% of said hydrogen-absorbing alloy is composed of AB x of single phase wherein

    A is at least one kind of element selected from rare earth elements including Y (yttrium);
    B is a metal mainly composed of Ni and at least one kind of element selected from Co, Al, Fe, Si, Cr, Cu, Mn, Ti, Zr, Zn, Hf, V, Nb, Ta, Mo, W, Ag, Pd, B, Ga, In, Ge and Sn;
    5,05 ≤ x ≤ 6; and
    10 vol-% or less of said hydrogen-absorbing alloy is composed of other phases selected from the group consisting of B, AB, AB 2 , AB 3 , A 2 B 7 , AB 5 and AB 1,4 .

    The invention also relates to a process for manufacturing such a hydrogen-absorbing alloy for a battery as well as a secondary nickel-metal hydride battery including a negative electrode containing the alloy claimed.

    摘要翻译: 本发明涉及一种储氢合金的电池,由所述吸氢合金的体积worin至少90%是由单相AB x的worin至少一种元素从稀土元素包括Y选择A( 钇); B是主要由Ni组成的金属和至少一种选自钴,铝,铁,硅,铬,铜,锰,钛,锆,锌,铪,钒,铌,钽,钼,钨,Ag中选择元件的 ,钯,B,镓,铟,Ge和Sn; 5.05≤X≤6; 和按体积或更小。所述吸收氢合金的10%是由选自B,AB,AB2,AB3,A2B7,和AB5的AB1,4选择的其他相。 因此本发明涉及一种用于制造储氢合金寻找一个电池以及二次镍氢电池包含含有要求保护的合金的负极。