Hydrogen absorbing alloy compact for use as the negative electrode of an alkaline rechargeable battery
    7.
    发明授权
    Hydrogen absorbing alloy compact for use as the negative electrode of an alkaline rechargeable battery 失效
    吸氢合金可用作碱性可再充电电池的负极

    公开(公告)号:US06387148B1

    公开(公告)日:2002-05-14

    申请号:US09626956

    申请日:2000-07-27

    IPC分类号: C22C1900

    摘要: The present invention provides a hydrogen absorbing alloy compact for use as the negative electrode of an alkaline rechargeable battery which is made without the aid of a current-collecting support, contains a binder dispersed in the interstices formed by mutual contact of hydrogen absorbing alloy particles and on the alloy surfaces, and has a bulk density of 3.5 to 6.0 g/cm3. The present invention also provides a compact electrode which is made by forming a porous hydrogen absorbing alloy compact containing neither current-collecting support nor binder, impregnating the compact with an aqueous solution (or solvent solution) of a binder, and then drying the compact to remove the water (or solvent) alone, so that the strength of the compact is increased and good electrical contact between alloy particles is established.

    摘要翻译: 本发明提供一种用作碱性可再充电电池的负极的氢吸收合金成型体,其不经集电支撑而制成,其包含分散在由吸氢合金粒子相互接触形成的间隙中的粘合剂 在合金表面上,堆积密度为3.5〜6.0g / cm 3。 本发明还提供一种紧凑型电极,其通过形成不含集电支撑体或粘合剂的多孔吸氢合金成形体,用粘合剂的水溶液(或溶剂溶液)浸渍压块,然后将其干燥至 单独去除水(或溶剂),使得压块的强度增加,并且建立合金颗粒之间良好的电接触。

    Hydrogen absorbing alloy for a negative electrode of an alkaline storage
battery
    10.
    发明授权
    Hydrogen absorbing alloy for a negative electrode of an alkaline storage battery 失效
    用于碱性蓄电池的负极的吸氢合金

    公开(公告)号:US06063524A

    公开(公告)日:2000-05-16

    申请号:US9502

    申请日:1998-01-20

    CPC分类号: H01M4/385 B22F3/114 H01M4/383

    摘要: The object is to provide a hydrogen absorbing alloy suitable for the negative electrode of a Ni-hydrogen storage battery which is effective at low temperatures. The object can be attained by a LaNi.sub.5 type hydrogen absorbing alloy, wherein the content of Mg in the hydrogen absorbing alloy is 50 to 500 ppm, and it is represented by a general formula RNi.sub.a Co.sub.b Al.sub.c M.sub.d, wherein R comprises not less than 77 wt % La and 23 wt % or less of one or more metals other than La, Ni, Co, Al and M, M comprises at least one kind of metals selected from the group consisting of Fe, Cr, Cu and Mn, and a to d denote a positive number within a predetermined range. In addition, it is important to contain a small amount of Ti, Pb, oxygen, carbon and/or sulfur in said alloy.

    摘要翻译: 本发明的目的是提供一种适用于在低温下有效的镍氢蓄电池的负极的吸氢合金。 该目的可以通过LaNi5型吸氢合金实现,其中储氢合金中的Mg含量为50〜500ppm,由通式RNiaCobAlcMd表示,其中R包含不小于77wt%的La和 除La,Ni,Co,Al和M,M以外的一种以上的金属的23重量%以下,M包含选自Fe,Cr,Cu和Mn中的至少一种金属,a至d表示 正数在预定范围内。 此外,重要的是在所述合金中含有少量的Ti,Pb,氧,碳和/或硫。