Hydrogen-absorbing alloy for a negative electrode and manufacturing
method therefor
    22.
    发明授权
    Hydrogen-absorbing alloy for a negative electrode and manufacturing method therefor 失效
    一种负极吸氢合金及其制造方法

    公开(公告)号:US5376474A

    公开(公告)日:1994-12-27

    申请号:US14382

    申请日:1993-02-05

    CPC分类号: H01M4/383 Y10S420/90

    摘要: The disclosure relates to a hydrogen-absorbing alloy for a negative electrode comprising: a main texture of Mm-Ni system having a crystal structure of CaCu.sub.5 type; and a plurality of compound phases having a crystal structure other than the crystal structure of CaCu.sub.5 type, where each of the compound phases are segregated in the main texture, and wherein a volume of each of the compound phases is less than about 10 .mu.m.sup.3. A distance between two adjacent compound phases should be less than about 100 .mu.m. In the hydrogen-absorbing alloy the compound phases should include an element selected from a group of boron (B), carbon (C), tantalum (Ta), niobium (Nb), titanium (Ti), zirconium (Zr), molybdenum (Mo), tungsten (W) and bismuth (Bi).

    摘要翻译: 本发明涉及一种用于负极的吸氢合金,其包括:具有CaCu 5型晶体结构的Mm-Ni系的主要结构; 以及具有除了CaCu 5型晶体结构以外的晶体结构的多个化合物相,其中各化合物相在主要组织中分离,其中每个化合物相的体积小于约10微米3。 两个相邻化合物相之间的距离应小于约100微米。 在吸氢合金中,化合物相应包括选自硼(B),碳(C),钽(Ta),铌(Nb),钛(Ti),锆(Zr) Mo),钨(W)和铋(Bi)。