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    Metal hydride alkaline storage cell
    32.
    发明授权
    Metal hydride alkaline storage cell 有权
    金属氢化物碱性蓄电池

    公开(公告)号：US06322925B1

    公开(公告)日：2001-11-27

    申请号：US09141140

    申请日：1998-08-27

    申请人： Yoshinori Matsuura ,  Mitsuzo Nogami ,  Reizo Maeda ,  Katsuhiko Shinyama ,  Ikuo Yonezu ,  Koji Nishio

    发明人： Yoshinori Matsuura ,  Mitsuzo Nogami ,  Reizo Maeda ,  Katsuhiko Shinyama ,  Ikuo Yonezu ,  Koji Nishio

    IPC分类号： H01M1024

    CPC分类号： H01M4/366 ,  H01M4/242 ,  H01M4/26 ,  H01M4/383 ,  H01M10/24 ,  H01M10/26 ,  H01M10/345 ,  Y02E60/124 ,  Y10S420/90 ,  Y10T29/49108 ,  Y10T29/49115

    摘要： A metal hydride alkaline storage cell of the present invention comprises a positive electrode, a separator impregnated with an electrolyte, and a negative electrode comprising hydrogen-absorbing alloy powder. On the surface of the hydrogen-absorbing alloy powder, there is formed a layer of hydrogen-absorbing alloy oxide, and on the layer of the oxide, there is dotted a catalytic metal formed in a granular state by adding a substance soluble in the electrolyte. The substance is selected from the group consisting of a metal fluoride, a metal iodide, and a metal sulfide. The proportion of the metal fluoride, the metal iodide, or the metal sulfide in adding is restricted within the range of from 0.1 to 2.5 wt. % based on the weight of hydrogen-absorbing alloy powder. When the layer of the hydrogen-absorbing alloy oxide is formed on the surface of the hydrogen-absorbing alloy powder, the reaction area on the surface of the hydrogen-absorbing alloy is increased due to the roughness of the layer. Consequently, the catalytic action of the metal is fully utilized by dotting a catalytic metal on the alloy surface, and thereby the inner pressure characteristic high-rate charge characteristic) of a cell is improved.

    摘要翻译： 本发明的金属氢化物碱性蓄电池包括正电极，浸渍有电解质的隔膜和包含吸氢合金粉末的负极。 在吸氢合金粉末的表面上形成有吸氢合金氧化物层，在氧化物层上，点燃形成颗粒状的催化金属，加入可溶于电解质的物质 。 该物质选自金属氟化物，金属碘化物和金属硫化物。 金属氟化物，金属碘化物或金属硫化物的添加量的比例限制在0.1〜2.5重量％的范围内。 基于吸氢合金粉末的重量％。 当在吸氢合金粉末的表面上形成吸氢合金氧化物层时，由于该层的粗糙度，吸氢合金表面上的反应区域增加。 因此，通过在合金表面上点燃催化金属，从而提高了电池的内部压力特性高速电荷特性，从而充分利用了金属的催化作用。

    Hydrogen storage containers
    33.
    发明授权
    Hydrogen storage containers 失效
    储氢容器

    公开(公告)号：US5987895A

    公开(公告)日：1999-11-23

    申请号：US96386

    申请日：1998-06-12

    申请人： Kouichi Nishimura ,  Kouichi Satoh ,  Shin Fujitani ,  Ikuo Yonezu ,  Koji Nishio

    发明人： Kouichi Nishimura ,  Kouichi Satoh ,  Shin Fujitani ,  Ikuo Yonezu ,  Koji Nishio

    IPC分类号： F17C11/00

    CPC分类号： C01B3/0005 ,  F17C11/005 ,  Y02E60/321 ,  Y02E60/324 ,  Y10S123/12

    摘要： Molded bodies of a hydrogen absorbing alloy accommodated in a hydrogen storage container are made readily replaceable to ensure stabilized supply of hydrogen gas. When exhibiting an impaired hydrogen absorbing-desorbing capacity, the molded bodies can be easily replaced by new molded bodies, whereby a specified hydrogen absorbing-desorbing capacity can be maintained. The hydrogen gas released from the storage container is partly utilized to heat the container and thereby maintain the alloy at a predetermined temperature, consequently assuring a device, such as a fuel cell, of stabilized supply of hydrogen from the container.

    摘要翻译： 容纳在储氢容器中的吸氢合金的成型体容易替换，以确保稳定的氢气供应。 当表现出吸收解吸能力受损时，可以容易地用新的成型体代替成型体，由此能够保持规定的吸氢解吸能力。 从储存容器释放的氢气部分地用于加热容器，从而将合金保持在预定温度，从而确保诸如燃料电池的装置从容器稳定地供应氢气。

    Lithium secondary battery
    34.
    发明授权
    Lithium secondary battery 失效
    锂二次电池

    公开(公告)号：US06492063B1

    公开(公告)日：2002-12-10

    申请号：US09686804

    申请日：2000-10-12

    申请人： Hiroaki Ikeda ,  Masahisa Fujimoto ,  Shin Fujitani ,  Takuya Hashimoto ,  Yasuhiko Itoh ,  Ikuo Yonezu

    发明人： Hiroaki Ikeda ,  Masahisa Fujimoto ,  Shin Fujitani ,  Takuya Hashimoto ,  Yasuhiko Itoh ,  Ikuo Yonezu

    IPC分类号： H01M458

    CPC分类号： H01M10/052 ,  H01M4/38 ,  H01M4/463

    摘要： In a lithium secondary battery of this invention, the negative electrode uses, as an active material, an alloy including an A phase of a first intermetallic compound (A), and a B phase of a second intermetallic compound (B) having the same constituent elements as and a different composition from the first intermetallic compound (A) and/or a C phase consisting of one of the constituent elements of the first intermetallic compound (A), and at least one of the A phase, the B phase and the C phase is capable of electrochemically absorbing and discharging lithium ions. Thus, the lithium secondary battery can exhibit good charge-discharge cycle performance.

    摘要翻译： 在本发明的锂二次电池中，负极使用包含第一金属间化合物（A）的A相和具有相同成分的第二金属间化合物（B）的B相作为活性物质 元素作为第一金属间化合物（A）和/或由第一金属间化合物（A）的构成元素之一组成的C相和不同的组成，以及A相，B相和 C相能够电化学吸收和释放锂离子。 因此，锂二次电池可以表现出良好的充放电循环性能。

    Sintered hydrogen storage alloy electrode and nickel-hydrogen storage battery
    35.
    发明授权
    Sintered hydrogen storage alloy electrode and nickel-hydrogen storage battery 失效
    烧结储氢合金电极和镍氢蓄电池

    公开(公告)号：US06287725B1

    公开(公告)日：2001-09-11

    申请号：US09402234

    申请日：2000-02-01

    申请人： Reizo Maeda ,  Syuuichi Suzuki ,  Hiroshi Nakamura ,  Mitsuzo Nogami ,  Ikuo Yonezu ,  Koji Nishio

    发明人： Reizo Maeda ,  Syuuichi Suzuki ,  Hiroshi Nakamura ,  Mitsuzo Nogami ,  Ikuo Yonezu ,  Koji Nishio

    IPC分类号： H01M458

    CPC分类号： C01B3/0057 ,  C22C19/03 ,  H01M4/0471 ,  H01M4/242 ,  H01M4/26 ,  H01M4/385 ,  H01M4/661 ,  H01M10/30 ,  Y02E60/124 ,  Y02E60/327

    摘要： The present electrode is fabricated by coating a conductive substrate with a paste including a hydrogen-absorbing alloy, a binder and a carbon material and sintering the conductive substrate coated with the paste under vacuum or in an atmosphere of a non-oxidizing gas. In this electrode, the carbon material works as a reducing agent so as to suppress oxidation of the hydrogen-absorbing alloy during the sintering, and therefore, the electrode exhibits large oxygen absorbing power in over-charge. Furthermore, the present battery uses, as a negative electrode, the sintered hydrogen-absorbing alloy electrode exhibiting large oxygen absorbing power in over-charge, and hence attains high reliability because increase of the pressure within the battery is minimal.

    摘要翻译： 本发明的电极通过用包含吸氢合金，粘合剂和碳材料的糊剂涂覆导电性基材来制造，并且在真空下或非氧化性气体气氛下烧结涂布有糊剂的导电性基材。 在该电极中，碳材料作为还原剂起作用，以抑制烧结时的吸氢合金的氧化，因此，电极在过充电中表现出较大的氧吸收能力。 此外，本发明的电池使用在过充电中表现出大的氧吸收能力的烧结储氢合金电极作为负极，因此由于电池内的压力增加最小，因此获得高的可靠性。

    Conductive agent and non-sintered nickel electrode for alkaline storage batteries
    36.
    发明授权
    Conductive agent and non-sintered nickel electrode for alkaline storage batteries 失效
    用于碱性蓄电池的导电剂和非烧结镍电极

    公开(公告)号：US6057057A

    公开(公告)日：2000-05-02

    申请号：US796541

    申请日：1997-02-06

    申请人： Mutsumi Yano ,  Mitsuzo Nogami ,  Katsuhiko Shinyama ,  Masao Inoue ,  Hiroshi Watanabe ,  Reizo Maeda ,  Ikuo Yonezu ,  Koji Nishio

    发明人： Mutsumi Yano ,  Mitsuzo Nogami ,  Katsuhiko Shinyama ,  Masao Inoue ,  Hiroshi Watanabe ,  Reizo Maeda ,  Ikuo Yonezu ,  Koji Nishio

    IPC分类号： C01G51/04 ,  H01M4/32 ,  H01M4/52 ,  H01M4/62

    CPC分类号： H01M4/32 ,  C01G51/04 ,  H01M4/52 ,  C01P2004/61 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/624

    摘要： A conductive agent for use in alkaline storage batteries in accordance with one aspect of the present invention contains 0.1 to 10% by weight sodium. This sodium content results from cobalt or a cobalt compound, to which an aqueous solution of sodium hydroxide is added and heated to 50 to 200.degree. C. A non-sintered nickel electrode for use in alkaline storage batteries is also proposed. In this electrode, the aforesaid conductive agent in accordance with the present invention is added to a pulverulent active material consisting of grains of nickel hydroxide or grains mainly constituted by nickel hydroxide such that 1 to 20 parts by weight of the conductive agent is added to 100 parts by weight nickel hydroxide contained in the pulverulent active material. Another non-sintered nickel electrode for use in alkaline storage batteries is also proposed. In this electrode, an active material takes the form of composite particles consisting of grains of nickel hydroxide or grains mainly constituted by nickel hydroxide, each of which has a surface formed with an electric conduction layer consisting of a cobalt compound containing 0.1 to 10% by weight sodium.

    摘要翻译： 根据本发明的一个方面的用于碱性蓄电池的导电剂含有0.1至10重量％的钠。 该钠含量来自钴或钴化合物，向其中加入氢氧化钠水溶液并加热至50至200℃。还提出了用于碱性蓄电池的非烧结镍电极。 在该电极中，将根据本发明的上述导电剂添加到由氢氧化镍颗粒或主要由氢氧化镍构成的颗粒组成的粉状活性材料中，使得添加1至20重量份的导电剂至100 包含在粉状活性物质中的氢氧化镍重量份。 还提出了另一种用于碱性蓄电池的非烧结镍电极。 在该电极中，活性物质是以氢氧化镍粒子为主要成分的复合粒子，或以氢氧化镍为主要成分的粒子构成的复合粒子，其表面形成有导电层，该导电层由含有0.1〜10％ 重量钠。

    System for storing and utilizing hydrogen
    39.
    发明授权
    System for storing and utilizing hydrogen 失效
    用于储存和利用氢气的系统

    公开(公告)号：US5728483A

    公开(公告)日：1998-03-17

    申请号：US822065

    申请日：1997-03-24

    申请人： Shin Fujitani ,  Koichi Nishimura ,  Koichi Sato ,  Ikuo Yonezu ,  Koji Nishio

    发明人： Shin Fujitani ,  Koichi Nishimura ,  Koichi Sato ,  Ikuo Yonezu ,  Koji Nishio

    IPC分类号： F17C11/00 ,  F02M21/02 ,  F17C13/00 ,  H01M8/04 ,  H01M8/06 ,  H01M8/14

    CPC分类号： H01M8/065 ,  H01M2008/147 ,  H01M2300/0008 ,  H01M2300/0051 ,  H01M2300/0082 ,  H01M8/04029 ,  Y02E60/321 ,  Y02E60/526

    摘要： The invention provides a system for storing and utilizing hydrogen comprising a liquefied hydrogen storage container 1 to be filled with liquefied hydrogen 2, a fuel cell 5 operable by a supply of hydrogen gas and serving as a hydrogen utilizing device, hydrogen gas piping 37 interconnecting the storage container 1 and the fuel cell 5, a hydrogen absorbing alloy container 3 connected to an intermediate portion of the piping 37 and having a hydrogen absorbing alloy 4 accommodated therein, a heat accumulator 6 having a heat storage medium 7 accommodated therein, piping 25 and a pump 22 for circulating the heat storage medium 7 between the fuel cell 5 and the heat accumulator 6, and piping 24 and a pump 21 for circulating the heat storage medium between the alloy container 3 and the heat accumulator 6.

    摘要翻译： 本发明提供了一种用于储存和利用氢的系统，其包括要充满液化氢的液化氢储存容器1，可通过氢气供应操作并用作氢利用装置的燃料电池5，将氢气管37与 储存容器1和燃料电池5，与管道37的中间部分连接并且容纳有吸氢合金4的储氢合金容器3，容纳有储热介质7的蓄热器6，配管25和 用于使蓄热介质7在燃料电池5和蓄热器6之间循环的泵22，以及用于使蓄热介质在合金容器3和蓄热器6之间循环的配管24和泵21。

    Hydrogen-absorbing alloy electrode and method for evaluating hydrogen-absorbing alloys for electrode
    40.
    发明授权
    Hydrogen-absorbing alloy electrode and method for evaluating hydrogen-absorbing alloys for electrode 失效
    吸氢合金电极及评估电极用吸氢合金的方法

    公开(公告)号：US5688341A

    公开(公告)日：1997-11-18

    申请号：US676574

    申请日：1996-07-01

    申请人： Takahiro Isono ,  Hiroshi Watanabe ,  Shin Fujitani ,  Hiroshi Nakamura ,  Yumiko Nakamura ,  Ikuo Yonezu

    发明人： Takahiro Isono ,  Hiroshi Watanabe ,  Shin Fujitani ,  Hiroshi Nakamura ,  Yumiko Nakamura ,  Ikuo Yonezu

    IPC分类号： C01B3/00 ,  H01M4/38 ,  C21D11/00 ,  C21D1/54

    CPC分类号： C01B3/0031 ,  C01B3/0057 ,  C01B3/0068 ,  H01M4/383 ,  Y02E60/327

    摘要： A hydrogen-absorbing alloy electrode utilizes as an electrode material a hydrogen-absorbing alloy having selectively oriented crystals, which is expressed in terms of a specific maximum value obtained from analysis of powder X-ray diffractometry. This electrode, in which the hydrogen-absorbing alloy used is hardly pulverized upon repeated charge-discharge cycles and oxidation thereof is suppressed, gives metal hydride alkaline secondary batteries having excellent cycle characteristics. A method for evaluating hydogen-absorbing alloys for electrode comprises, utilizing the fact that there exists a clear relationship between specific parameters obtained by analyzing data based on the hydrogen-absorbing alloy to be evaluated and the characteristics of the electrode obtained therefrom, preparing and using analytical curves with the specific parameters. This method can evaluate rapidly and precisely various characteristics of hydrogen-absorbing alloys for electrode, without actually fabricating test cells therefrom.

    摘要翻译： 吸氢合金电极利用具有选择性取向晶体的吸氢合金作为电极材料，其以从粉末X射线衍射分析获得的特定最大值表示。 在反复充放电循环中使用的吸氢合金几乎不被粉碎的电极及其氧化被抑制，得到具有优异的循环特性的金属氢化物碱性二次电池。 用于评价电极用吸氢合金的方法包括利用通过基于待评价的吸氢合金分析数据获得的具体参数与由其获得的电极的特性之间存在明确的关系，准备和使用 具有特定参数的分析曲线。 该方法可以快速准确地评估用于电极的吸氢合金的各种特性，而不实际制造测试电池。