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    ACTIVE MATERIAL FOR POSITIVE ELECTRODE FOR ALKALINE SECONDARY CELL AND METHOD FOR PRODUCING THE SAME, AND ALKALINE SECONDARY CELL USING THE ACTIVE MATERIAL FOR POSITIVE ELECTRODE AND METHOD FOR PRODUCING THE SAME
    4.
    发明授权
    ACTIVE MATERIAL FOR POSITIVE ELECTRODE FOR ALKALINE SECONDARY CELL AND METHOD FOR PRODUCING THE SAME, AND ALKALINE SECONDARY CELL USING THE ACTIVE MATERIAL FOR POSITIVE ELECTRODE AND METHOD FOR PRODUCING THE SAME 失效
    用于碱性二次电池的正电极的活性材料及其制造方法以及使用活性物质的碱性电极的碱性二次电池及其制造方法

    公开(公告)号：US06528209B2

    公开(公告)日：2003-03-04

    申请号：US09749789

    申请日：2000-12-28

    申请人： Kunihiko Miyamoto ,  Naomi Bando

    发明人： Kunihiko Miyamoto ,  Naomi Bando

    IPC分类号： H01M432

    CPC分类号： H01M4/52 ,  H01M10/28 ,  H01M10/342

    摘要： Provided is a active material for positive electrode for an alkaline secondary cell, which advantageously exhibits improved overdischarge characteristics, improved utilization of the active material and an improved effect of suppressing the rise in cell internal pressure, a method for producing the same, and an alkaline secondary cell using the above active material for positive electrode, especially a nickel-hydrogen secondary cell. The above active material comprises nickel hydroxide particles each having a surface to which a cobalt oxide sticks, wherein the cobalt oxide contains 20 to 40% by mole of cobalt(II) oxide, wherein the nickel hydroxide particles form an eutectic together with Co and Zn or/and Y, and the Co content of the eutectic is 2% by mass or less, and the nickel hydroxide particles have a value of a half width of the peak ascribed to the (101) crystal face diffraction of 0.8°/2&thgr;(Cu—K&agr;) or more as measured by powder X-ray diffractometry.

    摘要翻译： 本发明提供一种碱性二次电池用正极活性物质，其有利地具有改善的过放电特性，改善了活性物质的利用率和改善了抑制电池内部压力上升的效果，其制备方法和碱 使用上述正极活性物质，特别是镍 - 氢二次电池的二次电池。上述活性物质包含氢氧化钴颗粒，每个氧化钴具有钴氧化物粘附的表面，其中氧化钴含有20〜40摩尔％ 氧化钴（II），其中氢氧化镍颗粒与Co和Zn或/和Y一起形成共晶，共晶的Co含量为2质量％以下，氢氧化镍颗粒的值为一半 归属于（101）晶面衍射的峰值的宽度，通过粉末X射线衍射法测量为0.8°/2θ（Cu-Kalpha）或更大。

    Current collector substrate in electrode for use in alkaline secondary battery, electrode using the same, and alkaline secondary battery having incorporated thereinto the electrode
    5.
    发明授权
    Current collector substrate in electrode for use in alkaline secondary battery, electrode using the same, and alkaline secondary battery having incorporated thereinto the electrode 失效
    用于碱性二次电池的电极中的集电体基板，使用该二次电池的电极以及并入其中的碱性二次电池

    公开(公告)号：US06582855B1

    公开(公告)日：2003-06-24

    申请号：US09573545

    申请日：2000-05-19

    申请人： Kunihiko Miyamoto ,  Masayoshi Hiruma ,  Manabu Takezawa

    发明人： Kunihiko Miyamoto ,  Masayoshi Hiruma ,  Manabu Takezawa

    IPC分类号： H01M480

    CPC分类号： H01M4/742 ,  H01M4/32 ,  H01M4/366 ,  H01M4/52 ,  H01M4/74 ,  H01M4/80 ,  Y10T29/10

    摘要： Provided is a current collector substrate in an electrode of an alkaline secondary battery, which is advantageous not only in that it has excellent holding ability for a mixture for electrode, but also in that the utilization of an active material is improved, thereby enhancing the discharge characteristics of the battery, and an electrode and an alkaline secondary battery using the same. This current collector substrate has a plurality of openings formed within the surface of a metal powder sinter sheet which has a thickness (t) of 80 &mgr;m or less and is produced by a powdery calendering process, wherein the openings have periphery portions comprising burr portions protruding in the opposite directions.

    摘要翻译： 提供了一种碱性二次电池的电极中的集电体基板，其优点在于它具有优异的电极混合物的保持能力，而且有利于提高活性材料的利用率，从而提高放电 电池的特性，以及使用其的电极和碱性二次电池。 该集电体基板具有形成在金属粉末烧结体片的表面内的多个开口，该金属粉末烧结片的厚度（t）为80μm以下，通过粉末状压延工序制造，其中，开口部具有包括毛刺部的突出部 在相反的方向。

    Nickel-metal hydride secondary battery
    6.
    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。

    Alkali secondary battery
    7.
    发明授权
    Alkali secondary battery 失效
    碱性二次电池

    公开(公告)号：US5506076A

    公开(公告)日：1996-04-09

    申请号：US268956

    申请日：1994-06-30

    申请人： Kunihiko Miyamoto ,  Takeshi Fukuju ,  Ken Sugimoto

    发明人： Kunihiko Miyamoto ,  Takeshi Fukuju ,  Ken Sugimoto

    IPC分类号： H01M4/32 ,  H01M4/38 ,  H01M4/52 ,  H01M4/62 ,  H01M4/80 ,  H01M10/34

    CPC分类号： H01M4/622 ,  H01M4/32 ,  H01M4/383 ,  H01M4/52 ,  H01M10/345 ,  H01M4/624 ,  H01M4/808

    摘要： This invention discloses an alkali secondary battery which includes a cadmium-free positive electrode whose swelling ratio is decreased, and in which the cycle characteristic is improved and the charge efficiency in use at high temperatures is also improved. This alkali secondary battery includes a positive electrode accommodated in a case and having a structure in which a paste containing nickel hydroxide grains, a conductor, and a binder is filled in a metal porous body, a negative electrode accommodated in the case and so arranged as to oppose the positive electrode with a separator sandwiched between them, and an alkali electrolyte contained in the case. The nickel hydroxide grains contained in the positive electrode have a structure in which cobalt and at least one transition metal selected from the group consisting of copper, bismuth, chromium, gallium, indium, lanthanum, scandium, and yttrium are coprecipitated with metal nickel at a ratio of 1.5 to 11.0 wt % with respect to nickel hydroxide.

    摘要翻译： 本发明公开了一种碱性二次电池，其包括无镉正电极，其膨胀比降低，其中循环特性提高，并且在高温下使用的充电效率也得到改善。 该碱性二次电池包括容纳在壳体中的正极，其具有将包含氢氧化镍颗粒，导体和粘合剂的糊料填充到金属多孔体中的结构，容纳在壳体中的负极，并且布置成 以夹在它们之间的隔膜与包含在其中的碱性电解质相对的正极。 包含在正极中的氢氧化镍颗粒具有这样的结构，其中钴和选自铜，铋，铬，镓，铟，镧，钪和钇中的至少一种过渡金属与金属镍共沉淀 相对于氢氧化镍为1.5〜11.0重量％。

    Alkali secondary battery
    8.
    发明授权
    Alkali secondary battery 失效

    公开(公告)号：US5707764A

    公开(公告)日：1998-01-13

    申请号：US557394

    申请日：1995-11-13

    申请人： Kunihiko Miyamoto ,  Takeshi Fukuju ,  Ken Sugimoto

    发明人： Kunihiko Miyamoto ,  Takeshi Fukuju ,  Ken Sugimoto

    IPC分类号： H01M4/32 ,  H01M4/38 ,  H01M4/52 ,  H01M4/62 ,  H01M4/80 ,  H01M10/34

    CPC分类号： H01M4/622 ,  H01M4/32 ,  H01M4/383 ,  H01M4/52 ,  H01M10/345 ,  H01M4/624 ,  H01M4/808

    摘要： This invention discloses an alkali secondary battery which includes a cadmium-free positive electrode whose swelling ratio is decreased, and in which the cycle characteristic is improved and the charge efficiency in use at high temperatures is also improved. This alkali secondary battery includes a positive electrode accommodated in a case and having a structure in which a paste containing nickel hydroxide grains, a conductor, and a binder is filled in a metal porous body, a negative electrode accommodated in the case and so arranged as to oppose the positive electrode with a separator sandwiched between them, and an alkali electrolyte contained in the case. The nickel hydroxide grains contained in the positive electrode have a structure in which cobalt and at least one transition metal selected from the group consisting of copper, bismuth, chromium, gallium, indium, lanthanum, scandium, and yttrium are coprecipitated with metal nickel at a ratio of 1.5 to 11.0 wt % with respect to nickel hydroxide.

    Alkaline secondary battery
    10.
    发明授权
    Alkaline secondary battery 失效
    碱性二次电池

    公开(公告)号：US5525444A

    公开(公告)日：1996-06-11

    申请号：US490134

    申请日：1995-06-14

    申请人： Takeo Ito ,  Eiichi Wakai ,  Katsuya Kumagai ,  Kunihiko Miyamoto

    发明人： Takeo Ito ,  Eiichi Wakai ,  Katsuya Kumagai ,  Kunihiko Miyamoto

    IPC分类号： H01M4/62 ,  H01M10/24

    CPC分类号： H01M4/621 ,  H01M10/24

    摘要： An alkaline secondary battery is capable of inhibiting an increase of internal pressure in the charging/discharging cycles and extending life of charging/discharging cycles. This secondary battery comprises, a case, a paste-type positive electrode accommodated in the case and essentially consisting of a conductive substrate filled with a paste containing an active material and a binder, a negative electrode accommodated in the case, a separator interposed between the positive electrode and the negative electrode, and an alkaline electrolyte accommodated in the case, wherein the binder in the positive electrode contains a copolymer consisting of a vinyl alcohol unit and a unit having COOX group, wherein X is an element selected from the group consisting of hydrogen, alkaline metals and alkaline earth metals.

    摘要翻译： 碱性二次电池能够抑制充电/放电循环中的内部压力的增加和充电/放电循环的延长寿命。 这种二次电池包括壳体，容纳在壳体中并且基本上由填充有包含活性材料和粘合剂的糊状物的导电基底，容纳在壳体中的负极，插入在壳体中的隔膜 正电极和负极，以及容纳在壳体中的碱性电解质，其中正极中的粘合剂包含由乙烯醇单元和具有COOX基团的单元组成的共聚物，其中X是选自以下的元素： 氢，碱金属和碱土金属。