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    Nickel-metal hydride secondary battery
    1.
    发明授权
    Nickel-metal hydride secondary battery 失效
    镍氢二次电池

    公开(公告)号：US06399247B1

    公开(公告)日：2002-06-04

    申请号：US09513890

    申请日：2000-02-25

    申请人： Hiroshi Kitayama ,  Hirotaka Hayashida ,  Masaaki Yamamoto ,  Naomi Bando ,  Kunihiko Miyamoto ,  Hideharu Suzuki

    发明人： Hiroshi Kitayama ,  Hirotaka Hayashida ,  Masaaki Yamamoto ,  Naomi Bando ,  Kunihiko Miyamoto ,  Hideharu Suzuki

    IPC分类号： H01M432

    CPC分类号： H01M6/045 ,  H01M2/16 ,  H01M2/1666 ,  H01M4/366 ,  H01M4/383 ,  H01M4/52 ,  H01M4/624 ,  H01M10/26 ,  H01M10/345

    摘要： A nickel-metal hydride secondary battery comprising electrode group comprising positive electrode comprised mainly of nickel hydroxide, negative electrode comprised mainly of a hydrogen storage alloy, and separator being disposed between the positive electrode and the negative electrode, wherein the electrode group is sealed in battery casing, together with an alkali electrolyte liquid, wherein, in the battery, a W element and an Na element are present simultaneously. The nickel-metal hydride secondary battery of the present invention is advantageous not only in that it exhibits high utilization of the active material and excellent self-discharge characteristics in a high temperature storage as well as high charging efficiency in a high temperature environment, but also in that it has excellent large current discharge characteristics.

    摘要翻译： 一种镍氢二次电池，其特征在于，包括主要由氢氧化镍构成的正极的电极组，主要由储氢合金构成的负极和位于所述正极和负极之间的隔膜，所述电极组密封在电池 壳体和碱性电解质液体，其中在电池中同时存在W元素和Na元素。 本发明的镍氢二次电池不仅具有高活性物质的高利用率和高温储存中的优异的自放电特性以及高温环境下的充电效率高的优点， 因为它具有优异的大电流放电特性。

    Hydrogen-absorbing alloy and secondary battery
    6.
    发明授权
    Hydrogen-absorbing alloy and secondary battery 有权
    吸氢合金和二次电池

    公开(公告)号：US06268084B1

    公开(公告)日：2001-07-31

    申请号：US09475037

    申请日：1999-12-30

    申请人： Hirotaka Hayashida ,  Masaaki Yamamoto ,  Hiroshi Kitayama ,  Shusuke Inada ,  Isao Sakai ,  Tatsuoki Kono ,  Hideki Yoshida ,  Takamichi Inaba ,  Motoya Kanda

    发明人： Hirotaka Hayashida ,  Masaaki Yamamoto ,  Hiroshi Kitayama ,  Shusuke Inada ,  Isao Sakai ,  Tatsuoki Kono ,  Hideki Yoshida ,  Takamichi Inaba ,  Motoya Kanda

    IPC分类号： H01M458

    CPC分类号： H01M2/0285 ,  H01M2/022 ,  H01M4/383 ,  H01M10/345 ,  H01M2010/4292 ,  Y10S420/90

    摘要： There is provided a hydrogen-absorbing alloy comprising, as a principal phase, at least one kind of phase selected from the group consisting of a first phase having a hexagonal crystal system (excluding a phase having a CaCu5 type crystal structure) and a second phase having a rhombohedral crystal system, the hydrogen-absorbing alloy having a composition represented by the following general formula (1): R1−a−bMgaTbNiZ−X−Y−&agr;M1XM2YMn60   (1) wherein R is at least one kind of element selected from rare earth elements (which include Y), T is at least one element selected from the group consisting of Ca, Ti, Zr and Hf, M1 is at least one element selected from the group consisting of Co and Fe, M2 is at least one element selected from the group consisting of Al, Ga, Zn, Sn, Cu, Si, B, Nb, W, Mo, V, Cr, Ta, Li, P and S, and the atomic ratios of a, b, X, Y, &agr; and Z are respectively a number satisfying the conditions of: 0.15≦a≦0.37, 0≦b≦0.3, 0≦X≦1.3, 0≦Y≦0.5, 0≦&agr;≦0.135, and 2.5≦Z≦4.2.

    摘要翻译： 提供一种吸氢合金，其包含作为主相的至少一种相，其选自具有六方晶系的第一相（不包括具有CaCu 5型晶体结构的相）和第二相 具有菱方晶系的吸氢合金具有由以下通式（1）表示的组成：其中R是选自稀土元素（包括Y）中的至少一种元素，T是至少一种元素 选自由Ca，Ti，Zr和Hf组成的组，M1是选自Co和Fe中的至少一种元素，M2是选自Al，Ga，Zn，Sn， Cu，Si，B，Nb，W，Mo，V，Cr，Ta，Li，P和S，a，b，X，Y，α和Z的原子比分别为满足以下条件的数：0.15 <= a <= 0.37,0 <= b <= 0.3,0 <= X <= 1.3,0 <= Y <= 0.5,0 <=α<= 0.135和2.5 <= Z <= 4.2。

    Nickel-hydrogen secondary battery
    7.
    发明授权
    Nickel-hydrogen secondary battery 有权
    镍氢二次电池

    公开(公告)号：US06200705B1

    公开(公告)日：2001-03-13

    申请号：US09200890

    申请日：1998-11-27

    申请人： Hirotaka Hayashida ,  Hiroshi Kitayama ,  Masaaki Yamamoto ,  Shusuke Inada ,  Isao Sakai ,  Tatsuoki Kono ,  Hideki Yoshida ,  Takamichi Inaba ,  Motoya Kanda

    发明人： Hirotaka Hayashida ,  Hiroshi Kitayama ,  Masaaki Yamamoto ,  Shusuke Inada ,  Isao Sakai ,  Tatsuoki Kono ,  Hideki Yoshida ,  Takamichi Inaba ,  Motoya Kanda

    IPC分类号： H01M466

    CPC分类号： H01M4/242 ,  H01M2010/4292

    摘要： A nickel-hydrogen secondary battery having a negative electrode comprising a hydrogen-absorbing alloy containing magnesium, a rare earth element and nickel as essential elements, which is capable of suppressing the self-discharge being occurred under the condition of high temperature storage, or the like. This secondary battery comprises a negative electrode containing a hydrogen-absorbing alloy, a positive electrode containing nickel hydroxide, a separator comprising a non-woven fabric, and an alkaline electrolyte. The hydrogen-absorbing alloy is represented by (R1−xMgx)NiyAz (wherein R is at least one element selected from rare earth elements (including yttrium), Ca, Zr and Ti, A is at least one element selected from Co, Mn, Fe, V, Cr, Nb, Al, Ga, Zn, Sn, Cu, Si, P and B), and x, y and z are atomic ratio individually defined as 0

    摘要翻译： 一种具有负极的镍氢二次电池，其具有包含镁，稀土元素和镍作为必需元素的吸氢合金，其能够在高温储存条件下发生自放电，或者 喜欢。 该二次电池包括含有吸氢合金的负极，含有氢氧化镍的正极，包含无纺布的隔膜和碱性电解质。 吸氢合金由（R1-xMgx）NiyAz（其中R是选自稀土元素（包括钇），Ca，Zr和Ti中的至少一种元素）表示，A是选自Co，Mn， Fe，V，Cr，Nb，Al，Ga，Zn，Sn，Cu，Si，P和B），x，y和z分别定义为0