公开(公告)号：US20080261095A1

公开(公告)日：2008-10-23

申请号：US11993303

申请日：2006-06-19

申请人： Masaki Yamauchi ,  Yoshihiro Hori ,  Yasuo Takebe ,  Yasuhiro Seki

发明人： Masaki Yamauchi ,  Yoshihiro Hori ,  Yasuo Takebe ,  Yasuhiro Seki

IPC分类号： H01M8/10 ,  H01M6/00

CPC分类号： H01M8/0263 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/2483 ,  Y02P70/56 ,  Y10T29/49108

摘要： A membrane-electrode assembly (1) of the present invention comprises: a quadrate polymer electrolyte membrane (2); a pair of catalyst layers provided to sandwich the polymer electrolyte membrane except for a peripheral portion of the polymer electrolyte membrane; and a pair of gas diffusion layers (3) provided respectively on the pair of the catalyst layers, the membrane-electrode assembly (1) being incorporated into a fuel cell by being sandwiched between a pair of separators on each of which a reaction gas passage (A) or (C) is concavely formed in a gas diffusion layer contacting region of an inner surface thereof, the gas diffusion layer contacting region being a region contacting the gas diffusion layer, wherein: each of the reaction gas passages (A) and (C) in the gas diffusion layer contacting region is formed to have a serpentine shape which extends from upstream to downstream in a direction from a first side (2a) of the polymer electrolyte membrane 1 to a third side (2c) facing the first side along a second side (2b) adjacent to the first side while turning in directions along the first side; reinforced portions (4) for reinforcing the polymer electrolyte membrane are formed at a portion corresponding to the second side and a portion corresponding to a fourth side (2d) facing the second side in the peripheral portion of the polymer electrolyte membrane 2; and the reinforced portion (4) is not formed at a portion corresponding to at least the third side (2c) in the peripheral portion of the polymer electrolyte membrane (2).

摘要翻译： 本发明的膜 - 电极组件（1）包括：正方形聚合物电解质膜（2）; 一对催化剂层，设置成夹持聚合物电解质膜，除了聚合物电解质膜的周边部分; 以及一对分别设置在所述一对催化剂层上的气体扩散层（3），所述膜 - 电极组件（1）通过夹在一对隔板之间而被并入燃料电池，所述隔板中的每一个都具有反应气体通道 （A）或（C）在其内表面的气体扩散层接触区域中凹入地形成，气体扩散层接触区域是与气体扩散层接触的区域，其中：反应气体通道（A）和 气体扩散层接触区域中的（C）形成为具有蛇形形状，从在从高分子电解质膜1的第一侧（2a）到第三面（2c）的方向从上游到下游延伸， 第一侧沿着沿着第一侧的方向转动而沿着与第一侧相邻的第二侧（2b）; 在与第二侧对应的部分和与高分子电解质膜2的周边部的面向第二面的第四面（2d）相对应的部分形成用于加强聚合物电解质膜的增强部分（4） 并且所述加强部（4）不形成在与所述高分子电解质膜（2）的周边部的至少第三面（2c）对应的部分。

公开(公告)号：US20050142430A1

公开(公告)日：2005-06-30

申请号：US10508971

申请日：2003-03-25

申请人： Akihiko Yoshida ,  Yoshihiro Hori ,  Makoto Uchida ,  Eiichi Yasumoto ,  Yasuo Takebe ,  Osamu Sakai ,  Shinya Kosako ,  Takeshi Yonamine ,  Masaki Yamauchi ,  Yasushi Sugawara ,  Junji Morita

发明人： Akihiko Yoshida ,  Yoshihiro Hori ,  Makoto Uchida ,  Eiichi Yasumoto ,  Yasuo Takebe ,  Osamu Sakai ,  Shinya Kosako ,  Takeshi Yonamine ,  Masaki Yamauchi ,  Yasushi Sugawara ,  Junji Morita

IPC分类号： D03D15/00 ,  D03D15/12 ,  H01M4/86 ,  H01M4/88 ,  H01M4/92 ,  H01M4/96 ,  H01M4/94 ,  H01M8/10

CPC分类号： H01M8/0234 ,  D03D15/00 ,  D03D15/0083 ,  D10B2101/12 ,  D10B2201/24 ,  D10B2321/10 ,  D10B2401/063 ,  D10B2401/16 ,  H01M4/8605 ,  H01M4/92 ,  H01M4/96 ,  H01M8/0247 ,  H01M8/1004 ,  Y02P70/56

摘要： By using a gas diffusion layer for a fuel cell comprising a fabric comprising a warp thread and a weft thread which are made of carbon fiber, wherein the distance X between adjacent intersections where the warp and weft threads cross each other and the thickness Y of the fabric satisfy the equation: 1.4≦X/Y≦3.5, the present invention reduces the surface asperities of the substrate and prevents a micro short-circuit resulting from the piercing of the polymer electrolyte membrane of the fuel cell by the carbon fibers of the fabric so as to improve the characteristics of the fuel cell. In order to further prevent the piercing of the polymer electrolyte membrane by the carbon fibers of the gas diffusion layer substrate, the rough surface of the carbon fabric is smoothed by: (1) applying a clamping pressure of 1 to 20 kgf/cm2 to the contact area between each electrode and each conductive separator plate of the fuel cell; or (2) heating the gas diffusion layer surface before the gas diffusion layer is disposed onto the polymer electrolyte membrane.

摘要翻译： 通过使用包括由碳纤维制成的包括经线和纬纱的织物的燃料电池用气体扩散层，其中，经线和纬线彼此交叉的相邻交点之间的距离X和 织物满足以下等式：1.4 <= X / Y <= 3.5，本发明减小了基板的表面粗糙度，并且防止了燃料电池的聚合物电解质膜被碳纤维刺穿导致的微短路 织物，以改善燃料电池的特性。 为了进一步防止高分子电解质膜被气体扩散层基板的碳纤维刺穿，碳纤维织物的粗糙表面通过以下方式进行平滑化：（1）施加1〜20kgf / cm·SUP > 2 到燃料电池的每个电极和每个导电隔板之间的接触面积; 或者（2）在将气体扩散层配置在高分子电解质膜上之前加热气体扩散层表面。

公开(公告)号：US08278007B2

公开(公告)日：2012-10-02

申请号：US10593459

申请日：2005-12-28

申请人： Miho Gemba ,  Yasuo Takebe ,  Yoichiro Tsuji ,  Yoshihiro Hori ,  Yasuhiro Seki

发明人： Miho Gemba ,  Yasuo Takebe ,  Yoichiro Tsuji ,  Yoshihiro Hori ,  Yasuhiro Seki

IPC分类号： H01M2/38 ,  H01M2/40 ,  H01M8/04 ,  H01M8/24

CPC分类号： H01M8/04007 ,  H01M8/0258 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/04029 ,  H01M8/04089 ,  H01M8/04291 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2483 ,  H01M2008/1095

摘要： Even when a reaction gas flows into a gap formed between a gasket and a membrane electrode assembly, the flowing of the reaction gas to the outside without flowing through an electrode is prevented and thus a decrease in power generation efficiency is prevented. In order to allow the water vapor contained in the reaction gas that flows into an anode-side gap 10a formed between an anode-side gasket 9a and a membrane electrode assembly 5 to condense in at least a part of the gap 10a, and to allow the condensed water to fill the gap 10a, the upstream portion of a cooling fluid channel 8a of an anode-side separator 6a is formed such that it includes a region corresponding to the gap 10a, and the upstream portion is formed such that it includes a region corresponding to a middle stream portion and subsequent portion of a fuel gas channel 7a.

摘要翻译： 即使当反应气体流入形成在垫圈和膜电极组件之间的间隙中时，也可以防止反应气体流向外部而不流过电极，从而防止发电效率的降低。 为了使流入阳极侧衬垫9a和膜电极组件5之间的阳极侧间隙10a的反应气体中所含的水蒸气在间隙10a的至少一部分中冷凝，并且允许 用于填充间隙10a的冷凝水，阳极侧隔板6a的冷却流体通道8a的上游部分形成为包括与间隙10a对应的区域，并且形成上游部分，使得其包括 区域对应于燃料气体通道7a的中间部分和后续部分。

公开(公告)号：US20080233447A1

公开(公告)日：2008-09-25

申请号：US10593459

申请日：2005-12-28

申请人： Miho Gemba ,  Yasuo Takebe ,  Yoichiro Tsuji ,  Yoshihiro Hori ,  Yasuhiro Seki

发明人： Miho Gemba ,  Yasuo Takebe ,  Yoichiro Tsuji ,  Yoshihiro Hori ,  Yasuhiro Seki

IPC分类号： H01M8/02

CPC分类号： H01M8/04007 ,  H01M8/0258 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/04029 ,  H01M8/04089 ,  H01M8/04291 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2483 ,  H01M2008/1095

摘要： Even when a reaction gas flows into a gap formed between a gasket and a membrane electrode assembly, the flowing of the reaction gas to the outside without flowing through an electrode is prevented and thus a decrease in power generation efficiency is prevented. In order to allow the water vapor contained in the reaction gas that flows into an anode-side gap 10a formed between an anode-side gasket 9a and a membrane electrode assembly 5 to condense in at least a part of the gap 10a, and to allow the condensed water to fill the gap 10a, the upstream portion of a cooling fluid channel 8a of an anode-side separator 6a is formed such that it includes a region corresponding to the gap 10a, and the upstream portion is formed such that it includes a region corresponding to a middle stream portion and subsequent portion of a fuel gas channel 7a.

摘要翻译： 即使当反应气体流入形成在垫圈和膜电极组件之间的间隙中时，也可以防止反应气体流向外部而不流过电极，从而可以防止发电效率的降低。 为了使反应气体中含有的水蒸汽流入阳极侧垫圈9a和膜电极接合体5之间形成的阳极侧间隙10a，在间隙10a的至少一部分中冷凝， 并且为了使冷凝水填充间隙10a，阳极侧隔板6a的冷却液流路8a的上游部形成为包含对应于间隙10a的区域，上游部 形成为使得其包括对应于中间流部分和燃料气体通道7a的后续部分的区域。

公开(公告)号：US07150934B2

公开(公告)日：2006-12-19

申请号：US10508971

申请日：2003-03-25

申请人： Akihiko Yoshida ,  Yoshihiro Hori ,  Makoto Uchida ,  Eiichi Yasumoto ,  Yasuo Takebe ,  Osamu Sakai ,  Shinya Kosako ,  Takeshi Yonamine ,  Masaki Yamauchi ,  Yasushi Sugawara ,  Junji Morita

发明人： Akihiko Yoshida ,  Yoshihiro Hori ,  Makoto Uchida ,  Eiichi Yasumoto ,  Yasuo Takebe ,  Osamu Sakai ,  Shinya Kosako ,  Takeshi Yonamine ,  Masaki Yamauchi ,  Yasushi Sugawara ,  Junji Morita

IPC分类号： H01M4/00

CPC分类号： H01M8/0234 ,  D03D15/00 ,  D03D15/0083 ,  D10B2101/12 ,  D10B2201/24 ,  D10B2321/10 ,  D10B2401/063 ,  D10B2401/16 ,  H01M4/8605 ,  H01M4/92 ,  H01M4/96 ,  H01M8/0247 ,  H01M8/1004 ,  Y02P70/56

摘要： By using a gas diffusion layer for a fuel cell comprising a fabric comprising a warp thread and a weft thread which are made of carbon fiber, wherein the distance X between adjacent intersections where the warp and weft threads cross each other and the thickness Y of the fabric satisfy the equation: 1.4≦X/Y≦3.5, the present invention reduces the surface asperities of the substrate and prevents a micro short-circuit resulting from the piercing of the polymer electrolyte membrane of the fuel cell by the carbon fibers of the fabric so as to improve the characteristics of the fuel cell.In order to further prevent the piercing of the polymer electrolyte membrane by the carbon fibers of the gas diffusion layer substrate, the rough surface of the carbon fabric is smoothed by: (1) applying a clamping pressure of 1 to 20 kgf/cm2 to the contact area between each electrode and each conductive separator plate of the fuel cell; or (2) heating the gas diffusion layer surface before the gas diffusion layer is disposed onto the polymer electrolyte membrane.

摘要翻译： 通过使用包括由碳纤维制成的包括经线和纬纱的织物的燃料电池用气体扩散层，其中，经线和纬线彼此交叉的相邻交点之间的距离X和 织物满足以下等式：1.4 <= X / Y <= 3.5，本发明减小了基板的表面粗糙度，并且防止了燃料电池的聚合物电解质膜被碳纤维刺穿导致的微短路 织物，以改善燃料电池的特性。 为了进一步防止高分子电解质膜被气体扩散层基材的碳纤维刺穿，碳纤维织物的粗糙表面通过以下方式进行平滑化：（1）施加1〜20kgf / cm·SUP > 2 到燃料电池的每个电极和每个导电隔板之间的接触面积; 或者（2）在将气体扩散层配置在高分子电解质膜上之前加热气体扩散层表面。

公开(公告)号：US07132187B2

公开(公告)日：2006-11-07

申请号：US10256269

申请日：2002-09-27

申请人： Yasushi Sugawara ,  Makoto Uchida ,  Yoshihiro Hori ,  Akihiko Yoshida ,  Osamu Sakai ,  Takeshi Yonamine ,  Shinichi Arisaka ,  Yasuo Takebe

发明人： Yasushi Sugawara ,  Makoto Uchida ,  Yoshihiro Hori ,  Akihiko Yoshida ,  Osamu Sakai ,  Takeshi Yonamine ,  Shinichi Arisaka ,  Yasuo Takebe

IPC分类号： H01M4/96

CPC分类号： H01M4/881 ,  H01M4/9083 ,  H01M8/1004 ,  H01M2300/0094 ,  Y02P70/56

摘要： Disclosed is a fuel cell comprising: a hydrogen-ion conductive polymer electrolyte membrane; a pair of electrodes sandwiching the hydrogen-ion conductive polymer electrolyte membrane; a first separator plate having a gas flow path for supplying a fuel gas to one of the electrodes; and a second separator plate having a gas flow path for supplying an oxidant gas to the other of the electrodes, wherein each of the electrodes has an electrode catalyst layer comprising at least a conductive carbon particle carrying an electrode catalyst particle and a hydrogen-ion conductive polymer electrolyte, the electrode catalyst layer being in contact with the hydrogen-ion conductive polymer electrolyte membrane, and at least one of the electrodes comprises a catalyst for trapping the fuel gas or the oxidant gas which has passed through the hydrogen-ion conductive polymer electrolyte membrane.

摘要翻译： 公开了一种燃料电池，包括：氢离子导电聚合物电解质膜; 夹着氢离子导电性聚合物电解质膜的一对电极; 第一隔板，具有用于将燃料气体供给到所述电极之一的气体流路; 以及具有用于向另一个电极供给氧化剂气体的气体流路的第二隔板，其中每个电极具有至少包含载有电极催化剂颗粒的导电性碳颗粒和氢离子导电性的电极催化剂层 聚合物电解质，电极催化剂层与氢离子导电聚合物电解质膜接触，并且至少一个电极包括用于捕获通过氢离子导电聚合物电解质的燃料气体或氧化剂气体的催化剂 膜。

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。

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：US07883817B2

公开(公告)日：2011-02-08

申请号：US11579344

申请日：2005-07-05

申请人： Yoshihiro Hori ,  Mikiko Yoshimura ,  Yoichiro Tsuji ,  Takeshi Yonamine ,  Masaki Yamauchi

发明人： Yoshihiro Hori ,  Mikiko Yoshimura ,  Yoichiro Tsuji ,  Takeshi Yonamine ,  Masaki Yamauchi

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

CPC分类号： H01M4/8605 ,  H01M4/8814 ,  H01M4/8828 ,  H01M4/8882 ,  H01M2008/1095 ,  Y10T29/49108

摘要： The present invention provides a gas diffusion electrode capable of sufficiently preventing not only degradation of MEA during storage but also degradation of initial characteristics and durability during the time period from production to initial use, and a polymer electrolyte fuel cell including the gas diffusion electrode. The gas diffusion electrode includes a catalyst layer in which A1 representing a total mass of organic substance comprising alcohol, a partial oxide of the alcohol, a product of intramolecular dehydrogenation reaction of the alcohol, a product of intermolecular condensation reaction of the alcohol, a product of intermolecular condensation reaction between the alcohol and the partial oxide and a product of intermolecular condensation reaction of the partial oxide, E1 representing a total mass of carbon powder and G1 representing a total mass of cation exchange resin are controlled to satisfy {100×A1/(E1+G1)}≦0.05.

摘要翻译： 本发明提供一种气体扩散电极，其能够充分地防止存储期间的MEA的劣化，而且能够在从生产到初始使用的时间段期间的初始特性和耐久性的劣化，以及包括气体扩散电极的固体高分子型燃料电池。 气体扩散电极包括：催化剂层，其中Al表示包含醇的有机物质的总质量，醇的部分氧化物，醇的分子内脱氢反应的产物，醇的分子间缩合反应的产物，产物 醇和部分氧化物之间的分子间缩合反应和部分氧化物的分子间缩合反应的产物，表示碳粉末的总质量的E1和表示阳离子交换树脂的总质量的G1被控制为满足{100×A1 / （E1 + G1）}＆nlE; 0.05。

公开(公告)号：US20100015487A1

公开(公告)日：2010-01-21

申请号：US12095087

申请日：2006-11-24

申请人： Mikiko Yoshimura ,  Yoshihiro Hori ,  Takeou Okanishi ,  Masaki Yamauchi

发明人： Mikiko Yoshimura ,  Yoshihiro Hori ,  Takeou Okanishi ,  Masaki Yamauchi

IPC分类号： H01M8/10 ,  H01M2/00 ,  B05D5/12

CPC分类号： H01M4/8636 ,  H01M4/8642 ,  H01M4/926 ,  H01M8/0263 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/2483 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02T90/32

摘要： The present invention provides a catalyst-coated membrane and a membrane-electrode assembly that can easily and surely achieve a polymer electrolyte fuel cell having excellent durability, in which the decomposition/degradation of a polymer electrolyte membrane can be suppressed, and a decrease in initial characteristics can be prevented sufficiently for a long period of time even when the polymer electrolyte fuel cell is frequently started and stopped. In the catalyst-coated membrane that includes an anode catalyst layer, a cathode catalyst layer, and a hydrogen ion conductive polymer electrolyte membrane interposed between the anode catalyst layer and the cathode catalyst layer, a peripheral area of at least one of the anode catalyst layer and the cathode catalyst layer is provided with a decrease portion in which the mass of the electrode catalyst per unit area of the catalyst layer decreases from the inner side toward the outer side.

摘要翻译： 本发明提供一种能够容易且可靠地实现耐久性优异的聚合物电解质型燃料电池的催化剂被覆膜和膜电极接合体，能够抑制聚合物电解质膜的分解/降解， 即使高分子电解质型燃料电池经常开始停止，也能够长时间地充分地防止特性。 在介于阳极催化剂层和阴极催化剂层之间的包括阳极催化剂层，阴极催化剂层和氢离子导电聚合物电解质膜的催化剂涂覆膜中，阳极催化剂层中的至少一个的周边区域 并且阴极催化剂层设置有减少部分，其中催化剂层的每单位面积的电极催化剂的质量从内侧朝向外侧减小。