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1.发明申请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：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
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。
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公开(公告)号：US20050214630A1
公开(公告)日：2005-09-29
申请号：US11062749
申请日：2005-02-23
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。
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3.发明申请Electrolyte film electrode union, fuel cell containing the same and process for producing them 失效电解质膜电极联合体，含有它们的燃料电池及其制造方法公开(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
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。
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公开(公告)号：US07560180B2
公开(公告)日：2009-07-14
申请号：US11062749
申请日：2005-02-23
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。
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5.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
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”？>
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6.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。
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7.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
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。
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8.发明授权Electrolyte film electrode union, fuel cell containing the same and process for producing them 失效电解质膜电极联合体，含有它们的燃料电池及其制造方法公开(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。
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公开(公告)号：US07320839B2
公开(公告)日：2008-01-22
申请号：US10823796
申请日：2004-04-14
申请人： Yoichiro Tsuji , Yoshihiro Hori , Masaki Yamauchi , Makoto Uchida
发明人： Yoichiro Tsuji , Yoshihiro Hori , Masaki Yamauchi , Makoto Uchida
CPC分类号： H01M8/0271 , H01M8/0247 , H01M8/026 , H01M8/0263 , H01M8/0273 , H01M8/1004 , H01M8/1018 , H01M8/2483 , Y02P70/56
摘要： A fuel cell is disclosed having a separator that can minimize damage to a membrane electrode assembly. The separator advantageously has a groove therein approximately positioned over an outer edge of an electrode of the fuel cell to reduce any pressure between the separator and the outer edge of the electrode upon assembly and during use thereafter.
摘要翻译： 公开了一种燃料电池，其具有可以最小化对膜电极组件的损伤的隔膜。 分离器有利地具有大致定位在燃料电池的电极的外边缘上方的凹槽，以在组装时和之后的使用期间减小分离器和电极的外边缘之间的任何压力。
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10.发明授权Method for producing gas diffusion electrode and method for producing polymer electrolyte fuel cell, and gas diffusion electrode and polymer electrolyte fuel cell 有权气体扩散电极的制造方法以及固体高分子型燃料电池的制造方法以及气体扩散电极和聚合物电解质型燃料电池公开(公告)号：US07883817B2
公开(公告)日：2011-02-08
申请号：US11579344
申请日：2005-07-05
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。
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