公开(公告)号：US07622215B2

公开(公告)日：2009-11-24

申请号：US11071575

申请日：2005-03-04

申请人： Yoshihiro Hori ,  Akihiko Yoshida ,  Mikiko Yoshimura ,  Makoto Uchida ,  Shinji Kinoshita ,  Hirokazu Wakabayashi

发明人： Yoshihiro Hori ,  Akihiko Yoshida ,  Mikiko Yoshimura ,  Makoto Uchida ,  Shinji Kinoshita ,  Hirokazu Wakabayashi

IPC分类号： H01M4/00 ,  H01M8/10 ,  H01M6/04

CPC分类号： H01M4/881 ,  H01M4/8605 ,  H01M4/8828 ,  H01M4/886 ,  H01M4/921 ,  H01M8/026 ,  H01M8/0263 ,  H01M8/0289 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/1053 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2483 ,  Y02P70/56

摘要： To provide a polymer electrolyte membrane having excellent size stability and excellent mechanical strength that can sufficiently prevent the size change due to the swelling condition, the displacement of the polymer electrolyte membrane and the formation of wrinkles during the production of the polymer electrolyte fuel cell, and can prevent damage during the production and operation of the polymer electrolyte fuel cell. In a composite electrolyte membrane including a porous reinforcement layer made of a resin and an electrolyte layer made of a polymer electrolyte and laminated at least one main surface of the reinforcement layer, the direction having a high tensile modulus of elasticity in the reinforcement layer is substantially corresponded with the direction having a high rate of size change in the electrolyte layer.

摘要翻译： 为了提供具有优异的尺寸稳定性和优异的机械强度的高分子电解质膜，其能够充分地防止由于溶胀条件引起的尺寸变化，聚合物电解质膜的位移和在制造聚合物电解质燃料电池期间形成皱纹，以及 可以防止在固体高分子型燃料电池的制造和运转中的损伤。 在包括由树脂制成的多孔加强层和由聚合物电解质制成的电解质层并且叠层在加强层的至少一个主表面上的复合电解质膜中，加强层中具有高拉伸弹性模量的方向基本上 对应于电解质层中具有高比例尺寸变化的方向。

公开(公告)号：US07473486B2

公开(公告)日：2009-01-06

申请号：US11042322

申请日：2005-01-26

申请人： Mikiko Yoshimura ,  Yoshihiro Hori ,  Yoichiro Tsuji ,  Akihiko Yoshida ,  Takeshi Yonamine ,  Makoto Uchida

发明人： Mikiko Yoshimura ,  Yoshihiro Hori ,  Yoichiro Tsuji ,  Akihiko Yoshida ,  Takeshi Yonamine ,  Makoto Uchida

IPC分类号： H01M4/86 ,  H01M4/96

CPC分类号： H01M8/1004 ,  H01M4/8605 ,  H01M4/8642 ,  H01M4/8657 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/8892 ,  H01M4/921 ,  H01M4/926 ,  H01M8/102 ,  H01M8/1039

摘要： An object of the present invention is to provide a catalyst-coated membrane suitable for achieving a polymer electrolyte fuel cell that sufficiently prevents a decrease in the initial characteristics and also exhibits sufficient cell performance for a long period of time and has excellent durability. In at least the cathode catalyst layer, the ratio (WP/WCat-C) of the weight of the polymer electrolyte (WP) to the weight of the catalyst-carrying carbon (WCat-C) is decreased from an innermost layer positioned closest to the polymer electrolyte membrane toward an outermost layer positioned farthest from the polymer electrolyte membrane. The ratio (WP/WCat-C) in the innermost layer is 0.8 to 3.0, and the ratio (WP/WCat-C) in the outermost layer is 0.2 to 0.6.

摘要翻译： 本发明的目的是提供一种适用于实现充分防止初始特性降低的聚合物电解质燃料电池的催化剂涂覆膜，并且长时间表现出足够的电池性能并且具有优异的耐久性。 在至少阴极催化剂层中，聚合物电解质（WP）的重量与催化剂载体碳重量（WCat-C）的重量比（WP / WCat-C）从位于最接近 聚合物电解质膜朝向距离聚合物电解质膜最远的最外层。 最内层的比例（WP / WCat-C）为0.8〜3.0，最外层的比例（WP / WCat-C）为0.2〜0.6。

公开(公告)号：US20050227132A1

公开(公告)日：2005-10-13

申请号：US11071575

申请日：2005-03-04

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

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

IPC分类号： H01M8/02 ,  H01M4/86 ,  H01M4/88 ,  H01M4/92 ,  H01M8/10 ,  H01M8/24

CPC分类号： H01M4/881 ,  H01M4/8605 ,  H01M4/8828 ,  H01M4/886 ,  H01M4/921 ,  H01M8/026 ,  H01M8/0263 ,  H01M8/0289 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/1053 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2483 ,  Y02P70/56

摘要： To provide a polymer electrolyte membrane having excellent size stability and excellent mechanical strength that can sufficiently prevent the size change due to the swelling condition, the displacement of the polymer electrolyte membrane and the formation of wrinkles during the production of the polymer electrolyte fuel cell, and can prevent damage during the production and operation of the polymer electrolyte fuel cell. In a composite electrolyte membrane including a porous reinforcement layer made of a resin and an electrolyte layer made of a polymer electrolyte and laminated at least one main surface of the reinforcement layer, the direction having a high tensile modulus of elasticity in the reinforcement layer is substantially corresponded with the direction having a high rate of size change in the electrolyte layer.

摘要翻译： 为了提供具有优异的尺寸稳定性和优异的机械强度的高分子电解质膜，其能够充分地防止由于溶胀条件引起的尺寸变化，聚合物电解质膜的位移和在制造聚合物电解质燃料电池期间形成皱纹，以及 可以防止在固体高分子型燃料电池的制造和运转中的损伤。 在包括由树脂制成的多孔加强层和由聚合物电解质制成的电解质层并且叠层在加强层的至少一个主表面上的复合电解质膜中，加强层中具有高拉伸弹性模量的方向基本上 对应于电解质层中具有高比例尺寸变化的方向。

公开(公告)号：US20050214610A1

公开(公告)日：2005-09-29

申请号：US11042322

申请日：2005-01-26

申请人： Mikiko Yoshimura ,  Yoshihiro Hori ,  Yoichiro Tsuji ,  Akihiko Yoshida ,  Takeshi Yonamine ,  Makoto Uchida

发明人： Mikiko Yoshimura ,  Yoshihiro Hori ,  Yoichiro Tsuji ,  Akihiko Yoshida ,  Takeshi Yonamine ,  Makoto Uchida

IPC分类号： H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M4/96 ,  H01M8/02 ,  H01M8/10

CPC分类号： H01M8/1004 ,  H01M4/8605 ,  H01M4/8642 ,  H01M4/8657 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/8892 ,  H01M4/921 ,  H01M4/926 ,  H01M8/102 ,  H01M8/1039

摘要： An object of the present invention is to provide a catalyst-coated membrane suitable for achieving a polymer electrolyte fuel cell that sufficiently prevents a decrease in the initial characteristics and also exhibits sufficient cell performance for a long period of time and has excellent durability. In at least the cathode catalyst layer, the ratio (WP/WCat-C) of the weight of the polymer electrolyte (WP) to the weight of the catalyst-carrying carbon (WCat-C) is decreased from an innermost layer positioned closest to the polymer electrolyte membrane toward an outermost layer positioned farthest from the polymer electrolyte membrane. The ratio (WP/WCat-C) in the innermost layer is 0.8 to 3.0, and the ratio (WP/WCat-C) in the outermost layer is 0.2 to 0.6.

摘要翻译： 本发明的目的是提供一种适用于实现充分防止初始特性降低的聚合物电解质燃料电池的催化剂涂覆膜，并且长时间表现出足够的电池性能并且具有优异的耐久性。 在至少阴极催化剂层中，聚合物电解质的重量比（W P P P C C） ）相对于催化剂载体碳（W CatC-C）的重量从位于最靠近聚合物电解质膜的最内层朝向距离聚合物电解质膜最远的最外层降低。 最内层的比例（W / P / W Cat-C）为0.8〜3.0，比率（W / P / W / 最外层中的“Cat-C”）为0.2〜0.6。

公开(公告)号：US20050197246A1

公开(公告)日：2005-09-08

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 ,  B05D5/12 ,  H01M4/86 ,  H01M4/94 ,  H01M4/96 ,  H01M8/02 ,  H01M8/10

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。

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。

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。

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”？>

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。

公开(公告)号：US07005397B2

公开(公告)日：2006-02-28

申请号：US10253823

申请日：2002-09-25

申请人： Yoshihiro Hori ,  Takeshi Yonamine ,  Makoto Uchida ,  Osamu Sakai

发明人： Yoshihiro Hori ,  Takeshi Yonamine ,  Makoto Uchida ,  Osamu Sakai

IPC分类号： H01M4/88 ,  H01M4/92 ,  H01M4/96

CPC分类号： H01M4/886 ,  H01M4/8605 ,  H01M4/8892 ,  H01M4/92 ,  H01M4/96 ,  H01M8/1004 ,  Y02P70/56

摘要： The present invention provides an electrode for a polymer electrolyte fuel cell comprising a high-performance electrode catalyst particle which is sufficiently coated with a hydrogen ion conductive polymer electrolyte and has a water repellent material suitably supplied thereto for water management. The method of producing the electrode in accordance with the present invention comprises the steps of spraying a solution or dispersion of a hydrogen ion conductive polymer electrolyte into a dry atmosphere in which a catalyst particle comprising an electrically conductive carbon powder carrying a platinum group metal catalyst is flowing, to coat the catalyst particle with the polymer electrolyte, and then spraying a solution or dispersion of a water repellent material to the catalyst particle to attach the water repellent material to the catalyst particle.