Electrochemically stabilized CaNi5 alloys and electrodes
    6.
    发明授权
    Electrochemically stabilized CaNi5 alloys and electrodes 失效
    电化学稳定的CaNi5合金和电极

    公开(公告)号:US06524745B1

    公开(公告)日:2003-02-25

    申请号:US09314380

    申请日:1999-05-19

    IPC分类号: H01M458

    摘要: An electrochemically stabilized Ca—Ni hydrogen storage alloy material for use as the active negative electrode material of an alkaline electrochemical cell. The alloy material includes at least one modifier element which stabilizes the alloy material from degradation during electrochemical cycling in an alkaline cell, by protecting calcium within the alloy and preventing dissolution of calcium into the alkaline electrolyte. The alloy has the formula (Ca1−x−yMxNi2y)Ni5−zQz, where M is at least one element selected from the group consisting of misch metal, rare earth metals, zirconium and mixtures of Zr with Ti or V, Q is at least one element selected form the group consisting of Si, Al, Ge, Sn, In, Cu, Zn, Co, and mixtures thereof, x ranges between about 0.02 and 0.2, y ranges between about 0.02 and 0.4, and z ranges from about 0.05 to about 1.00.

    摘要翻译: 一种电化学稳定化的Ca-Ni储氢合金材料,用作碱性电化学电池的活性负极材料。 合金材料包括至少一种修饰元素,其通过保护合金中的钙并防止钙溶解到碱性电解质中,使合金材料在电解池循环中在碱性电池中稳定化降解。 该合金具有式(Ca1-x-yMxNi2y)Ni5-zQz,其中M是选自混合金属,稀土金属,锆以及Zr与Ti或V的混合物中的至少一种元素,Q至少为 选自由Si,Al,Ge,Sn,In,Cu,Zn,Co及其混合物组成的组中的一种元素,x在约0.02和0.2之间,y在约0.02和0.4之间,z在约0.05 至约1.00。