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    • 1. 发明授权
    • Hydrogen absorbing alloy electrode, electrode producing method and alkali storage battery
    • 吸氢合金电极,电极制作方法和碱蓄电池
    • US06660431B1
    • 2003-12-09
    • US09913013
    • 2001-08-08
    • Sou KuranakaAkihiro MaedaYoshio Moriwaki
    • Sou KuranakaAkihiro MaedaYoshio Moriwaki
    • H01M458
    • H01M4/242H01M4/383H01M10/345Y02E60/124Y10S420/90
    • The present invention relates to a hydrogen storage alloy electrode composed of a hydrogen storage alloy having a CaCu5 region and a Ce2Ni7 region in the crystal structure and satisfies the relational formula: p:q=1:(4+a), where p is the sum of the mole fraction of an element occupying the Ca site of the CaCu5 region and the mole fraction of an element occupying the Ce site of the Ce2Ni7 region, q is the sum of the mole fraction of an element occupying the Cu site of the CaCu5 region and the mole fraction of an element occupying the Ni site of the Ce2Ni7 region, and −0.2≦a≦0.4. Accordingly, although the hydrogen storage alloy electrode contains a little or no Co, it is possible to obtain an electrode having little deterioration due to pulverization of the alloy and a high capacity.
    • 本发明涉及一种储氢合金电极,其由在晶体结构中具有CaCu5区域和Ce2Ni7区域的储氢合金构成,并且满足关系式:p = q = 1:(4 + a),其中p为 占据CaCu5区域的Ca位置的元素的摩尔分数和占Ce2Ni7区域的Ce位点的元素的摩尔分数之和,q是占据CaCu5的Cu位点的元素的摩尔分数之和 区域和占据Ce2Ni7区域的Ni位点的元素的摩尔分数,以及-0.2 <= a <= 0.4。 因此,虽然储氢合金电极含有很少或不含Co,但是可以获得由于合金粉碎和高容量而导致的劣化很小的电极。