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    • 3. 发明专利
    • Hydrogen storage alloy and nickel-hydride secondary battery
    • 氢储存合金和镍氢二次电池
    • JP2007291474A
    • 2007-11-08
    • JP2006122955
    • 2006-04-27
    • Japan Metals & Chem Co Ltd日本重化学工業株式会社
    • OSAWA MASAHITOITO NOBUOTERASHITA NAOKATSUTAKAHASHI SEIJITSUNOKAKE SHIGERU
    • C22C19/00H01M4/38
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a hydrogen storage alloy having large hydrogen storage capacity and the long life, and to provide a nickel-hydride secondary battery using the hydrogen storage alloy.
      SOLUTION: The hydrogen storage alloy has a component composition expressed by the formula (1), (R
      1-x Mg
      x )(Ni
      1-y M
      y )
      z , wherein (R) represents La, Ce, Pr and Nd or a mixture thereof; (M) represents Co, Mn, Al, Cu, Fe, Zn, Si, Sn, B, C and Zr or a mixture thereof; and (x), (y) and (z) represent x of 0.05 to 0.30, y of 0 to 0.3 and z of 3.0 to 4.0 respectively: and includes a phase formed of crystal structures of a PuNi
      3 type, a Ce
      2 Ni
      7 type and a Pr
      5 Co
      19 type so as to occupy 90 vol.% or higher in total.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 解决的问题:提供具有大的储氢能力和长寿命的储氢合金,并提供使用该储氢合金的镍氢二次电池。 解吸方法:储氢合金具有由式(1)表示的成分组成,(R SB 1-x Mg x )(Ni < 其中(R)表示La,Ce,Pr和Nd或它们的混合物;其中(R)表示La,Ce,Pr和Nd。 (M)表示Co,Mn,Al,Cu,Fe,Zn,Si,Sn,B,C和Zr或其混合物; 和(x),(y)和(z)分别表示x为0.05〜0.30,y为0〜0.3,z分别为3.0〜4.0,包含由PuNi 3 SB / >类型,Ce 2 Ni 7 型和Pr 5 Co 19 型,以便占据90体积 。%或更高。 版权所有(C)2008,JPO&INPIT