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    Gas diffusion layer, electrode and membrane electrode assembly for fuel cell, and production methods thereof
    1.
    发明授权
    Gas diffusion layer, electrode and membrane electrode assembly for fuel cell, and production methods thereof 有权
    用于燃料电池的气体扩散层，电极和膜电极组件及其制造方法

    公开(公告)号：US07414004B2

    公开(公告)日：2008-08-19

    申请号：US11002574

    申请日：2004-12-03

    申请人： Akihiko Yoshida ,  Yoichiro Tsuji ,  Masaki Yamauchi ,  Yoshihiro Hori ,  Makoto Uchida ,  Hisaaki Gyoten ,  Teruhisa Kanbara

    发明人： Akihiko Yoshida ,  Yoichiro Tsuji ,  Masaki Yamauchi ,  Yoshihiro Hori ,  Makoto Uchida ,  Hisaaki Gyoten ,  Teruhisa Kanbara

    IPC分类号： H01M4/88

    CPC分类号： H01M8/023 ,  H01M4/8605 ,  H01M8/0234 ,  H01M8/0243 ,  Y02P70/56

    摘要： The present invention provides a gas diffusion layer for a fuel cell which has proper rigidity, is easy to handle and contributes to the improvement of the productivity of fuel cells. A method for producing a gas diffusion layer for a fuel cell including a first step of: impregnating a conductive porous substrate made of a conductive carbon fiber cloth or conductive carbon fiber felt with a first dispersion containing a first fluorocarbon resin having thermoplasticity; and baking the first conductive porous substrate at a first baking temperature of not less than the melting point of the first fluorocarbon resin and less than the decomposition temperature of the first fluorocarbon resin to enhance the rigidity of the conductive porous substrate.

    摘要翻译： 本发明提供一种燃料电池用气体扩散层，其具有适当的刚性，易于处理并有助于提高燃料电池的生产率。 一种燃料电池用气体扩散层的制造方法，其特征在于，包括以下步骤：浸渍由导电性碳纤维布或导电性碳纤维毡制成的导电性多孔质基材，所述第一分散体含有具有热塑性的第一氟碳树脂; 在不低于第一氟碳树脂的熔点的第一烘烤温度和低于第一氟碳树脂的分解温度的条件下烘烤第一导电性多孔质基材，以提高导电性多孔质基材的刚性。

    Polymer electrolyte fuel cell
    4.
    发明授权
    Polymer electrolyte fuel cell 有权
    聚合物电解质燃料电池

    公开(公告)号：US07220514B2

    公开(公告)日：2007-05-22

    申请号：US10335958

    申请日：2003-01-03

    申请人： Eiichi Yasumoto ,  Akihiko Yoshida ,  Makoto Uchida ,  Hisaaki Gyoten ,  Kazuhito Hatoh ,  Yasushi Sugawara ,  Junji Morita ,  Teruhisa Kanbara ,  Yasuo Takebe ,  Masato Hosaka ,  Junji Niikura

    发明人： Eiichi Yasumoto ,  Akihiko Yoshida ,  Makoto Uchida ,  Hisaaki Gyoten ,  Kazuhito Hatoh ,  Yasushi Sugawara ,  Junji Morita ,  Teruhisa Kanbara ,  Yasuo Takebe ,  Masato Hosaka ,  Junji Niikura

    IPC分类号： H01M4/96 ,  H01M8/10 ,  H01M4/88

    CPC分类号： H01M4/8605 ,  H01M4/861 ,  H01M4/8814 ,  H01M4/8821 ,  H01M4/8828 ,  H01M4/921 ,  H01M4/926 ,  H01M8/0234 ,  H01M2008/1095

    摘要： In a polymer electrolyte fuel cell including a hydrogen ion conductive polymer electrolyte membrane; a pair of electrodes composed of catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers; a conductive separator plate having a gas flow channel for supplying a fuel gas to one of the electrodes; and a conductive separator plate having a gas flow channel for supplying an oxidant gas to the other electrode, in order to bring a hydrogen ion conductive polymer electrolyte and a catalyst metal of the catalyst layers containing the hydrogen ion conductive polymer electrolyte and conductive carbon particles carrying the catalyst metal sufficiently and uniformly into contact with each other, the polymer electrolyte is provided in pores of an agglomerate structure of the conductive carbon particles. Consequently, the reaction area inside the electrodes is increased, and higher performance is exhibited.

    摘要翻译： 在具有氢离子导电性高分子电解质膜的固体高分子型燃料电池中， 由催化剂层构成的一对电极，夹在其间的氢离子导电性高分子电解质膜和与催化剂层接触的气体扩散层; 具有用于将燃料气体供给到所述电极之一的气体流路的导电性隔板; 以及具有用于向另一个电极供给氧化剂气体的气体流动通道的导电隔板，以便使氢离子导电聚合物电解质和含有氢离子导电聚合物电解质的催化剂层和催化剂层的催化剂金属携带 催化剂金属彼此充分均匀地接触，聚合物电解质被提供在导电碳颗粒的附聚结构的孔中。 因此，电极内的反应区域增加，表现出更高的性能。

    Polymer electrolyte fuel cell
    9.
    发明授权
    Polymer electrolyte fuel cell 失效
    聚合物电解质燃料电池

    公开(公告)号：US06210823B1

    公开(公告)日：2001-04-03

    申请号：US09374517

    申请日：1999-08-16

    申请人： Kazuhito Hatoh ,  Eiichi Yasumoto ,  Kazufumi Nishida ,  Hisaaki Gyoten ,  Hideo Ohara ,  Makoto Uchida ,  Yasushi Sugawara ,  Teruhisa Kanbara ,  Toshihiro Matsumoto ,  Kouji Nakagawa

    发明人： Kazuhito Hatoh ,  Eiichi Yasumoto ,  Kazufumi Nishida ,  Hisaaki Gyoten ,  Hideo Ohara ,  Makoto Uchida ,  Yasushi Sugawara ,  Teruhisa Kanbara ,  Toshihiro Matsumoto ,  Kouji Nakagawa

    IPC分类号： H01M802

    CPC分类号： H01M8/247 ,  H01M2300/0082

    摘要： The present invention provides a polymer electrolyte fuel cell having a small-sized, light-weighted mechanism for fastening a stack of unit cells assembly. The polymer electrolyte fuel cell of the present invention includes a stack of unit cells obtained by laying a plurality of unit cells one upon another; a first end plate disposed on one end of the stack of unit cells; a second end plate arranged on the other end of the stack of unit cells; an auxiliary plate disposed at least outside the first end plate; at least one set of restraining means, each of which has a band-like shape and restrains a first member located on one end of an assembly, which includes the stack of unit cells, the first and the second end plates, and the auxiliary plate, and a second member located on the other end of the assembly to restrict separation of the first member and the second member from each other; a screw fitted in a threaded hole formed in the auxiliary plate in such a manner that an end of the screw comes into contact with the first end plate; and compressive means that generates a repulsive force to compress the stack of unit cells when the screw is fitted in the threaded hole of the auxiliary plate.

    摘要翻译： 本发明提供一种聚合物电解质燃料电池，其具有用于紧固单电池组件堆叠的小型轻型机构。 本发明的高分子电解质型燃料电池包括将多个单位电池单独放置而得到的单位电池堆叠; 设置在所述单元电池堆的一端的第一端板; 布置在所述单元电池堆的另一端的第二端板; 设置在所述第一端板的至少外侧的辅助板; 至少一组限制装置，每一个限制装置具有带状形状并且限制位于组件一端的第一构件，该第一构件包括单元电池堆，第一和第二端板以及辅助板 以及位于所述组件的另一端的第二构件，以限制所述第一构件和所述第二构件彼此的分离; 安装在形成在辅助板中的螺纹孔中的螺钉，使得螺钉的端部与第一端板接触; 以及当螺钉装配在辅助板的螺纹孔中时产生排斥力以压缩单元电池堆的压缩装置。

    Polymer electrolyte fuel cell stack
    10.
    发明授权
    Polymer electrolyte fuel cell stack 有权
    聚合物电解质燃料电池堆

    公开(公告)号：US06869719B2

    公开(公告)日：2005-03-22

    申请号：US10330886

    申请日：2002-12-27

    申请人： Kazuhito Hatoh ,  Eiichi Yasumoto ,  Kazufumi Nishida ,  Hisaaki Gyoten ,  Teruhisa Kanbara ,  Hideo Ohara ,  Makoto Uchida ,  Yasushi Sugawara ,  Toshihiro Matsumoto

    发明人： Kazuhito Hatoh ,  Eiichi Yasumoto ,  Kazufumi Nishida ,  Hisaaki Gyoten ,  Teruhisa Kanbara ,  Hideo Ohara ,  Makoto Uchida ,  Yasushi Sugawara ,  Toshihiro Matsumoto

    IPC分类号： C08L23/22 ,  H01M2/08 ,  H01M8/02 ,  H01M8/04 ,  H01M8/24

    CPC分类号： H01M8/02 ,  C08L23/22 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0228 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/04029 ,  H01M8/04074 ,  H01M8/04119 ,  H01M8/241 ,  H01M8/2483 ,  H01M2300/0082 ,  Y02P70/56

    摘要： A polymer electrolyte fuel cell stack that includes a cell laminate having a plurality of unit cells, which are laid one upon another and each of which includes a polymer electrolyte membrane, a pair of electrodes arranged across the polymer electrolyte membrane and having respective catalytic reaction layers, a separator having means for feeding a supply of fuel gas containing hydrogen gas to one of the electrodes, another separator having means for feeding a supply of oxidant gas to the other of the electrodes, and a manifold for feeding the supply of fuel gas or the supply of oxidant gas to the respective electrode and disposed on a side face of each unit cell. In the polymer electrolyte fuel cell stack, a sealing portion is disposed at least in the vicinity of each electrode. The polymer electrolyte fuel cell stack has excellent durability and productivity. Gasket sealing portions, a sealing portion for cooling water, and sealing portions for water and gas in an internal humidifying unit are composed of a polymer compound that has polyisobutylene as the backbone structure. This arrangement ensures high reliability.

    摘要翻译： 一种聚合物电解质燃料电池堆，其包括具有多个单元电池的电池层叠体，所述电池层叠体彼此叠放并且各自包括聚合物电解质膜，跨所述聚合物电解质膜布置的一对电极，并且具有各自的催化反应层 具有将含有氢气的燃料气体供给到其中一个电极的装置的分离器，具有用于向另一个电极供给氧化剂气体的装置的另一分离器，以及用于供给燃料气体供应的歧管或 将氧化剂气体供应到各个电极并且设置在每个单电池的侧面上。 在聚合物电解质型燃料电池堆中，密封部至少设置在各电极附近。 聚合物电解质燃料电池堆具有优异的耐久性和生产率。 垫片密封部，冷却水用密封部以及内部加湿单元中的水和气体密封部由以聚异丁烯为主体结构的高分子化合物构成。 这种安排确保了高可靠性。