Method for producing hydrogen storage alloy
    4.
    发明授权
    Method for producing hydrogen storage alloy 失效
    储氢合金的制造方法

    公开(公告)号:US5575831A

    公开(公告)日:1996-11-19

    申请号:US201602

    申请日:1994-02-25

    摘要: In a method for producing a multi-component hydrogen storage alloy including metals of zirconium or vanadium, oxides of these metals is used to produce an alloy having characteristics equivalent to that produced with pure metals. It comprises steps of calcining the raw material, wherein at least one selected from the group consisting of zirconium and vanadium is included in its oxide form, at a temperature ranging from 900.degree. C. to 1300.degree. C., mixing metal calcium with said calcined raw material, and treating the mixture with heat at a temperature ranging from the melting point of metal calcium to 1300.degree. C., under inert gas atmosphere.

    摘要翻译: 在包含锆或钒的金属的多组分储氢合金的制造方法中,使用这些金属的氧化物来制造具有与纯金属相同的特性的合金。 其包括煅烧原料的步骤,其中在900℃至1300℃的温度范围内以其氧化物形式包含选自锆和钒的至少一种,将金属钙与所述煅烧 在惰性气体气氛下,在金属钙熔点至1300℃的温度范围内加热处理混合物。

    Hydrogen storing alloy electrode
    5.
    发明授权
    Hydrogen storing alloy electrode 失效
    储氢合金电极

    公开(公告)号:US5541018A

    公开(公告)日:1996-07-30

    申请号:US384809

    申请日:1995-02-06

    IPC分类号: H01M4/38

    CPC分类号: H01M4/383 Y10S420/90

    摘要: The present invention provides a hydrogen storing alloy electrode having a large discharging capacity and a long lifetime at a high temperature. The electrode is also excellent in discharging characteristics in the early charging and discharging cycles. In one aspect of the present invention, the hydrogen storing alloy electrode is made of a hydrogen storing alloy represented by the general formula ZrMn.sub.m V.sub.x X.sub.y Ni.sub.z or a hydride thereof, wherein X is Al, Zn or W; m, x, y, and z are respectively mole ratio of Mn, V, X, and Ni to Zr: 0.4.ltoreq.m.ltoreq.0.8, 0.1.ltoreq.x.ltoreq.0.3, 1.0.ltoreq.z.ltoreq.1.5, and 2.0.ltoreq.m+x+y+z.ltoreq.2.4; when X is Al or Zn, 0

    摘要翻译: 本发明提供一种放电容量大,寿命长的储氢合金电极。 该电极在早期充放电循环中的放电特性也优异。 在本发明的一个方面中,储氢合金电极由通式为ZrMnmVxXyNiz或其氢化物表示的储氢合金制成,其中X为Al,Zn或W; m,x,y和z分别是Mn,V,X和Ni与Zr的摩尔比:0.4≤0.08,0.1≤x≤0.3,0.0≤z /=1.5和2.0

    Method of producing hydrogen storage alloy for battery
    9.
    发明授权
    Method of producing hydrogen storage alloy for battery 失效
    电池用储氢合金的制造方法

    公开(公告)号:US5837317A

    公开(公告)日:1998-11-17

    申请号:US813889

    申请日:1997-03-07

    摘要: The present invention provides a method of producing a hydrogen storage alloy low in cobalt content which can restrains a decrease in cycle life characteristic and preservation characteristic of an alkaline storage battery when the alloy is used as a negative electrode. The method includes the following steps. An Mm-Ni system hydrogen storage alloy which has a crystal structure of CaCu.sub.5 and contains 15 atom % or less of cobalt is powdered to have an average particle diameter of 10-100 .mu.m. Then, the powdered alloy is immersed in a treatment solution at 80.degree.-130.degree. C., the treatment solution comprising an alkaline aqueous solution containing 10 g/l or more of lithium hydroxide and having a specific gravity of 1.1 or higher, and cobalt ions which is contained in the alkaline aqueous solution, thereby forming a layer containing nickel and cobalt in higher concentration than in the bulk of the powdered alloy onto the alloy surface.

    摘要翻译: 本发明提供一种低合金含量的储氢合金的制造方法,其能够抑制在将该合金用作负极时碱性蓄电池的循环寿命特性和保存特性的降低。 该方法包括以下步骤。 将具有CaCu 5的晶体结构并含有15原子%以下的钴的Mm-Ni体系的储氢合金粉碎成平均粒径为10〜100μm。 然后,将粉末状合金浸入80〜130℃的处理液中,处理液含有10g / l以上的氢氧化锂,比重为1.1以上的碱性水溶液,钴 离子,其包含在碱性水溶液中,从而在合金表面上形成含有比在粉末状合金中高的浓度的含有镍和钴的层。