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    Gas diffusion layer, electrode and membrane electrode assembly for fuel cell, and production methods thereof
    2.
    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。

    Membrane electrode assembly with a fibrous substrate, method for producing the same and polymer electrolyte fuel cell
    6.
    发明授权
    Membrane electrode assembly with a fibrous substrate, method for producing the same and polymer electrolyte fuel cell 失效
    具有纤维基材的膜电极组件，其制造方法和聚合物电解质燃料电池

    公开(公告)号：US07687184B2

    公开(公告)日：2010-03-30

    申请号：US10583374

    申请日：2005-09-22

    申请人： Masaki Yamauchi ,  Yoshihiro Hori ,  Akihiko Yoshida ,  Mikiko Yoshimura ,  Makoto Uchida

    发明人： Masaki Yamauchi ,  Yoshihiro Hori ,  Akihiko Yoshida ,  Mikiko Yoshimura ,  Makoto Uchida

    IPC分类号： H01M4/00 ,  H01M8/10

    CPC分类号： H01M8/023 ,  H01M8/1004 ,  H01M2008/1095

    摘要： In a conventional polymer membrane electrode assembly, particularly when operated for a long period of time, a portion of the polymer electrolyte membrane to be in contact with the gas diffusion layer has suffered significant degradation. In order to address this, in a membrane electrode assembly including a hydrogen ion conductive polymer electrolyte membrane, a pair of catalyst layers arranged on both surfaces of the polymer electrolyte membrane, and a pair of gas diffusion layers, each including a fibrous substrate, arranged on the outer surfaces of the catalyst layers, a thickness TA of a center portion that faces the catalyst layer and a thickness TB of a peripheral portion surrounding the center portion are set to satisfy a expression (1): 0.7≦TB/TA≦0.9.

    摘要翻译： 在常规的聚合物膜电极组件中，特别是长时间操作时，与气体扩散层接触的部分高分子电解质膜已遭受显着的劣化。 为了解决这个问题，在包括氢离子导电聚合物电解质膜，布置在高分子电解质膜的两个表面上的一对催化剂层和包括纤维基材的一对气体扩散层的膜电极组件中， 在催化剂层的外表面上，面向催化剂层的中心部分的厚度TA和围绕中心部分的周边部分的厚度TB被设定为满足式（1）：0.7＆nlE; TB / TA＆nlE; 0.9。

    Gas diffusion layer and fuel cell using the same
    7.
    发明授权
    Gas diffusion layer and fuel cell using the same 有权
    气体扩散层和使用其的燃料电池

    公开(公告)号：US07560180B2

    公开(公告)日：2009-07-14

    申请号：US11062749

    申请日：2005-02-23

    申请人： Akihiko Yoshida ,  Masaki Yamauchi ,  Yoshihiro Hori ,  Makoto Uchida

    发明人： Akihiko Yoshida ,  Masaki Yamauchi ,  Yoshihiro Hori ,  Makoto Uchida

    IPC分类号： H01M8/00 ,  H01M4/00

    CPC分类号： H01M8/023 ,  H01M4/8605 ,  H01M8/04156 ,  H01M8/1007

    摘要： To provide a gas diffusion layer excellent in micro short-circuit resistance and anti-flooding characteristics by optimizing the surface shape of a gas diffusion layer.In a gas diffusion layer for a gas diffusion electrode including at least a catalyst layer containing an electrode catalyst and a gas diffusion layer having electron conductivity and gas diffusibility, a second surface of the gas diffusion layer, which is positioned opposite to a first surface thereof to be in contact with the catalyst layer, is made rougher than the first surface. The first surface has a maximum height Ry1 of 10 to 50 determined by JIS B 0601 surface roughness measurement method, and the second surface has a maximum height Ry2 of 100 to 500 determined by JIS B 0601 surface roughness measurement method.

    摘要翻译： 通过优化气体扩散层的表面形状，提供微短路电阻和防淹特性优异的气体扩散层。 在至少含有电极催化剂的催化剂层和具有电子传导性和气体扩散性的气体扩散层的气体扩散电极用气体扩散层中，与第一表面相对的气体扩散层的第二表面 与催化剂层接触，比第一表面更粗糙。 第一表面具有由JIS B 0601表面粗糙度测量方法确定的10至50的最大高度Ry1，并且第二表面具有由JIS B 0601表面粗糙度测量方法确定的100至500的最大高度Ry2。

    Membrane Electrode Assembly, Method for Producing the Same and Polymer Electrolyte Fuel Cell
    8.
    发明申请
    Membrane Electrode Assembly, Method for Producing the Same and Polymer Electrolyte Fuel Cell 失效
    膜电极组件及其生产方法和聚合物电解质燃料电池

    公开(公告)号：US20080311462A1

    公开(公告)日：2008-12-18

    申请号：US10583374

    申请日：2005-09-22

    申请人： Masaki Yamauchi ,  Yoshihiro Hori ,  Akihiko Yoshida ,  Mikiko Yoshimura ,  Makoto Uchida

    发明人： Masaki Yamauchi ,  Yoshihiro Hori ,  Akihiko Yoshida ,  Mikiko Yoshimura ,  Makoto Uchida

    IPC分类号： H01M4/86 ,  H01M8/10 ,  H01M4/88

    CPC分类号： H01M8/023 ,  H01M8/1004 ,  H01M2008/1095

    摘要： In a conventional polymer membrane electrode assembly, particularly when operated for a long period of time, a portion of the polymer electrolyte membrane to be in contact with the gas diffusion layer has suffered significant degradation. In order to address this, in a membrane electrode assembly including a hydrogen ion conductive polymer electrolyte membrane, a pair of catalyst layers arranged on both surfaces of the polymer electrolyte membrane, and a pair of gas diffusion layers, each including a fibrous substrate, arranged on the outer surfaces of the catalyst layers, a thickness TA of a center portion that faces the catalyst layer and a thickness TB of a peripheral portion surrounding the center portion are set to satisfy a expression (1): 0.7≦TB/TA≦0.9.

    摘要翻译： 在常规的聚合物膜电极组件中，特别是长时间操作时，与气体扩散层接触的部分高分子电解质膜已遭受显着的劣化。 为了解决这个问题，在包括氢离子导电聚合物电解质膜，布置在高分子电解质膜的两个表面上的一对催化剂层和包括纤维基材的一对气体扩散层的膜电极组件中， 在催化剂层的外表面上，设置面向催化剂层的中心部分的厚度TA和围绕中心部分的周边部分的厚度TB满足表达式（1）：< description =“In-line Formulas”end =“lead”？> 0.7 <= TB / TA <= 0.9 <？in-line-formula description =“In-line Formulas”end =“tail”？>

    Gas diffusion layer and fuel cell using the same
    9.
    发明申请
    Gas diffusion layer and fuel cell using the same 有权
    气体扩散层和使用其的燃料电池

    公开(公告)号：US20050214630A1

    公开(公告)日：2005-09-29

    申请号：US11062749

    申请日：2005-02-23

    申请人： Akihiko Yoshida ,  Masaki Yamauchi ,  Yoshihiro Hori ,  Makoto Uchida

    发明人： Akihiko Yoshida ,  Masaki Yamauchi ,  Yoshihiro Hori ,  Makoto Uchida

    IPC分类号： H01M4/86 ,  H01M4/94 ,  H01M8/02 ,  H01M8/04 ,  H01M8/10

    CPC分类号： H01M8/023 ,  H01M4/8605 ,  H01M8/04156 ,  H01M8/1007

    摘要： To provide a gas diffusion layer excellent in micro short-circuit resistance and anti-flooding characteristics by optimizing the surface shape of a gas diffusion layer. In a gas diffusion layer for a gas diffusion electrode including at least a catalyst layer containing an electrode catalyst and a gas diffusion layer having electron conductivity and gas diffusibility, a second surface of the gas diffusion layer, which is positioned opposite to a first surface thereof to be in contact with the catalyst layer, is made rougher than the first surface. The first surface has a maximum height Ry1 of 10 to 50 determined by JIS B 0601 surface roughness measurement method, and the second surface has a maximum height Ry2 of 100 to 500 determined by JIS B 0601 surface roughness measurement method.

    摘要翻译： 通过优化气体扩散层的表面形状，提供微短路电阻和防淹特性优异的气体扩散层。 在至少含有电极催化剂的催化剂层和具有电子传导性和气体扩散性的气体扩散层的气体扩散电极用气体扩散层中，与第一表面相对的气体扩散层的第二表面 与催化剂层接触，比第一表面更粗糙。 第一表面具有由JIS B 0601表面粗糙度测量方法确定的10至50的最大高度Ry <1> 1，并且第二表面的最大高度Ry <2> <100>为100至 500根据JIS B 0601表面粗糙度测定法测定。