公开(公告)号：US06818339B1

公开(公告)日：2004-11-16

申请号：US10049567

申请日：2002-02-15

申请人： Yasushi Sugawara ,  Hisaaki Gyoten ,  Makoto Uchida ,  Eiichi Yasumoto ,  Teruhisa Kanbara ,  Junji Morita ,  Yoshihiro Hori ,  Akihiko Yoshida ,  Hidenobu Wakita ,  Hiroki Kusakabe ,  Masato Hosaka ,  Osamu Sakai

发明人： Yasushi Sugawara ,  Hisaaki Gyoten ,  Makoto Uchida ,  Eiichi Yasumoto ,  Teruhisa Kanbara ,  Junji Morita ,  Yoshihiro Hori ,  Akihiko Yoshida ,  Hidenobu Wakita ,  Hiroki Kusakabe ,  Masato Hosaka ,  Osamu Sakai

IPC分类号： H01M402

CPC分类号： H01M4/8636 ,  H01M4/8605 ,  H01M8/0234 ,  H01M8/1004 ,  H01M2008/1095

摘要： The present specification discloses a polymer electrolyte fuel cell characterized in that each of the cathode and the anode comprises catalyst particles, a hydrogen ion-conductive polymer electrode, a conductive porous base material and a water repellent agent, and water repellency of at least one of the cathode and the anode varies in a direction of thickness or in a plane direction. As such, by varying the degree of the water repellency of the cathode and the anode on the basis of a position, an excellent polymer electrolyte fuel cell having a high discharge characteristic or more specifically a high current-voltage characteristic in a high current density range.

摘要翻译： 本说明书公开了一种固体高分子型燃料电池，其特征在于，所述阴极和阳极各自包含催化剂粒子，氢离子传导性高分子电极，导电性多孔质基材，防水剂，以及至少一种 阴极和阳极在厚度方向或平面方向上变化。 因此，通过基于位置改变阴极和阳极的拒水性程度，在高电流密度范围内具有高放电特性或更具体地高电流 - 电压特性的优异的聚合物电解质燃料电池 。

公开(公告)号：US07097932B1

公开(公告)日：2006-08-29

申请号：US10088484

申请日：2000-09-20

申请人： Osamu Sakai ,  Hisaaki Gyoten ,  Hiroki Kusakabe ,  Eiichi Yasumoto ,  Yasushi Sugawara ,  Teruhisa Kanbara ,  Akihiko Yoshida ,  Makoto Uchida ,  Junji Morita

发明人： Osamu Sakai ,  Hisaaki Gyoten ,  Hiroki Kusakabe ,  Eiichi Yasumoto ,  Yasushi Sugawara ,  Teruhisa Kanbara ,  Akihiko Yoshida ,  Makoto Uchida ,  Junji Morita

IPC分类号： H01M4/96

CPC分类号： H01M4/8657 ,  H01M4/8636 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/2415 ,  H01M8/2457 ,  H01M8/2484 ,  H01M2250/20 ,  H01M2250/402 ,  H01M2300/0082 ,  Y02B90/12 ,  Y02E60/521 ,  Y02P70/56 ,  Y02P90/40 ,  Y02T90/32 ,  Y10T29/49108

摘要： A polymer electrolyte fuel cell is provided comprising: a hydrogen ion conductive polymer electrolyte membrane; an anode and a cathode sandwiching the hydrogen ion conductive polymer electrolyte membrane; an anode side electroconductive separator having a gas channel for supplying a fuel gas to the anode; a cathode side electroconductive separator having a gas channel for supplying an oxidant gas to the cathode; characterized in that the anode and the cathode comprise a gas diffusion layer and a catalyst layer formed on the gas diffusion layer at the side in contact with the hydrogen ion conductive polymer electrolyte membrane, the catalyst layer has catalyst particles and a hydrogen ion conductive polymer electrolyte, and at least either of hydrogen ion conductivity and gas permeability of at least either of the anode and the cathode varies in a thickness direction of the anode or the cathode.

摘要翻译： 提供了一种聚合物电解质燃料电池，包括：氢离子导电聚合物电解质膜; 夹持氢离子导电聚合物电解质膜的阳极和阴极; 阳极侧导电隔板，具有用于向阳极供应燃料气体的气体通道; 阴极侧导电隔板，具有用于向阴极供给氧化剂气体的气体通道; 其特征在于，阳极和阴极包括气体扩散层和形成在与氢离子导电聚合物电解质膜接触的一侧的气体扩散层上的催化剂层，催化剂层具有催化剂颗粒和氢离子导电聚合物电解质 并且至少阳极和阴极中的任一个的氢离子传导性和气体渗透性中的至少一种在阳极或阴极的厚度方向上变化。

公开(公告)号：US20050214599A1

公开(公告)日：2005-09-29

申请号：US11137514

申请日：2005-05-26

申请人： Osamu Sakai ,  Hisaaki Gyoten ,  Hiroki Kusakabe ,  Eiichi Yasumoto ,  Yasushi Sugawara ,  Teruhisa Kanbara ,  Akihiko Yoshida ,  Makoto Uchida ,  Junji Morita

发明人： Osamu Sakai ,  Hisaaki Gyoten ,  Hiroki Kusakabe ,  Eiichi Yasumoto ,  Yasushi Sugawara ,  Teruhisa Kanbara ,  Akihiko Yoshida ,  Makoto Uchida ,  Junji Morita

IPC分类号： H01M4/86 ,  H01M4/92 ,  H01M8/02 ,  H01M8/10 ,  H01M8/24 ,  H01M6/00 ,  C25B1/46 ,  H01M8/00

CPC分类号： H01M4/8657 ,  H01M4/8636 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/2415 ,  H01M8/2457 ,  H01M8/2484 ,  H01M2250/20 ,  H01M2250/402 ,  H01M2300/0082 ,  Y02B90/12 ,  Y02E60/521 ,  Y02P70/56 ,  Y02P90/40 ,  Y02T90/32 ,  Y10T29/49108

摘要： A polymer electrolyte fuel cell is provided comprising: a hydrogen ion conductive polymer electrolyte membrane; an anode and a cathode sandwiching the hydrogen ion conductive polymer electrolyte membrane; an anode side electroconductive separator having a gas channel for supplying a fuel gas to the anode; a cathode side electroconductive separator having a gas channel for supplying an oxidant gas to the cathode; characterized in that the anode and the cathode comprise a gas diffusion layer and a catalyst layer formed on the gas diffusion layer at the side in contact with the hydrogen ion conductive polymer electrolyte membrane, the catalyst layer has catalyst particles and a hydrogen ion conductive polymer electrolyte, and at least either of hydrogen ion conductivity and gas permeability of at least either of the anode and the cathode varies in a thickness direction of the anode or the cathode.

摘要翻译： 提供了一种聚合物电解质燃料电池，包括：氢离子导电聚合物电解质膜; 夹持氢离子导电聚合物电解质膜的阳极和阴极; 阳极侧导电隔板，具有用于向阳极供应燃料气体的气体通道; 阴极侧导电隔板，具有用于向阴极供给氧化剂气体的气体通道; 其特征在于，阳极和阴极包括气体扩散层和形成在与氢离子导电聚合物电解质膜接触的一侧的气体扩散层上的催化剂层，催化剂层具有催化剂颗粒和氢离子导电聚合物电解质 并且至少阳极和阴极中的任一个的氢离子传导性和气体渗透性中的至少一种在阳极或阴极的厚度方向上变化。

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。

公开(公告)号：US06746793B1

公开(公告)日：2004-06-08

申请号：US09719664

申请日：2000-12-15

申请人： Hisaaki Gyoten ,  Eiichi Yasumoto ,  Kazuhito Hatoh ,  Makoto Uchida ,  Yasushi Sugawara ,  Teruhisa Kanbara ,  Junji Morita ,  Hideo Ohara ,  Kazufumi Nishida ,  Osamu Sakai ,  Yukiyoshi Ono ,  Yasuo Takebe

发明人： Hisaaki Gyoten ,  Eiichi Yasumoto ,  Kazuhito Hatoh ,  Makoto Uchida ,  Yasushi Sugawara ,  Teruhisa Kanbara ,  Junji Morita ,  Hideo Ohara ,  Kazufumi Nishida ,  Osamu Sakai ,  Yukiyoshi Ono ,  Yasuo Takebe

IPC分类号： H01M802

CPC分类号： H01M4/8642 ,  H01M4/8605 ,  H01M4/926 ,  H01M8/1004 ,  H01M2300/0082

摘要： The polymer electrolyte fuel cell of the present invention exhibits an excellent performance with an efficient electrode reaction; by providing a layer comprising an electroconductive fine particle between the catalytic reaction layer and the gas diffusion layer in the electrodes; by providing a hydrogen ion diffusion layer on at least either surface of the catalyst particle or the carrier, which carries the catalyst particle in the catalytic reaction layer; or by constituting the catalytic reaction layer with at least a catalyst comprising a hydrophilic carbon material with catalyst particles carried thereon and a water repellent carbon material.

摘要翻译： 本发明的高分子电解质型燃料电池具有优异的电极反应性能， 通过在催化反应层和电极中的气体扩散层之间提供包含导电细颗粒的层; 通过在催化剂颗粒或载体的至少任一个表面上提供氢离子扩散层，其在催化反应层中承载催化剂颗粒; 或者通过使至少包含亲水性碳材料的催化剂与承载有催化剂颗粒的催化反应层和防水性碳材料构成。

公开(公告)号：US06660424B1

公开(公告)日：2003-12-09

申请号：US09763263

申请日：2001-02-20

申请人： Hisaaki Gyoten ,  Eiichi Yasumoto ,  Makoto Uchida ,  Yasushi Sugawara ,  Kazufumi Nishida ,  Kazuhito Hatoh ,  Yukiyoshi Ono ,  Hideo Ohara ,  Junji Morita ,  Yasuo Takebe ,  Teruhisa Kanbara ,  Osamu Sakai

发明人： Hisaaki Gyoten ,  Eiichi Yasumoto ,  Makoto Uchida ,  Yasushi Sugawara ,  Kazufumi Nishida ,  Kazuhito Hatoh ,  Yukiyoshi Ono ,  Hideo Ohara ,  Junji Morita ,  Yasuo Takebe ,  Teruhisa Kanbara ,  Osamu Sakai

IPC分类号： H01M214

CPC分类号： H01M8/0221 ,  H01M8/0223 ,  H01M8/0239 ,  H01M8/0241 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/2404 ,  H01M8/241 ,  H01M8/2457 ,  H01M2300/0082 ,  Y02P70/56 ,  Y10T29/49115

摘要： The specification discloses a fuel cell comprising stacked unit cells, each of the unit cells including a pair of electrodes having a catalytic reaction layer and a gas diffusion layer, an electrolyte layer disposed between the pair of electrodes, a separator having a flow path for supplying a fuel gas to one electrode and a separator having a flow path for supplying an oxidant gas to the other electrode, the separators being placed on the outer side of the electrodes and the unit cells being stacked with the separators placed therebetween, wherein at least the catalytic reaction layer, the gas diffusion layer or the flow path has water-repelling properties. Thereby, a fuel cell having a superior cell performance is obtained.

摘要翻译： 本说明书公开了一种燃料电池，其包括堆叠的单元电池，每个单元电池包括具有催化反应层和气体扩散层的一对电极，设置在该对电极之间的电解质层，具有用于供给的流路的隔板 一个电极的燃料气体和一个具有用于向另一个电极供应氧化剂气体的流动路径的隔板，隔板被放置在电极的外侧上，并且单元电池被堆叠在一起，隔板之间放置有至少 催化反应层，气体扩散层或流路具有防水性。 由此，获得具有优异的电池性能的燃料电池。

公开(公告)号：US06991870B2

公开(公告)日：2006-01-31

申请号：US10296338

申请日：2002-03-05

申请人： Eiichi Yasumoto ,  Akihiko Yoshida ,  Makoto Uchida ,  Junji Morita ,  Yasushi Sugawara ,  Hisaaki Gyoten ,  Masao Yamamoto ,  Osamu Sakai ,  Junji Niikura

发明人： Eiichi Yasumoto ,  Akihiko Yoshida ,  Makoto Uchida ,  Junji Morita ,  Yasushi Sugawara ,  Hisaaki Gyoten ,  Masao Yamamoto ,  Osamu Sakai ,  Junji Niikura

IPC分类号： H01M4/94 ,  H01M4/88

CPC分类号： H01M4/8828 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/8882 ,  H01M4/926 ,  H01M8/1004 ,  H01M2300/0082

摘要： It has been difficult to keep the voltage of a polymer electrolyte fuel cell stable for a long period of time because uniform water content control over the plane of the membrane-electrode assembly is impossible. A gas diffusion electrode is produced by forming a conductive polymer layer composed of conductive particles and a polymer material on a porous material composed of carbon fiber, and forming a catalyst layer composed of platinum-carried carbon particles on the plane of the conductive polymer layer. The conductive polymer layer is composed of conductive particles different in particle size, and the content of the conductive particles having the smaller particle size is decreased from one end towards the other end of the gas diffusion electrode.

公开(公告)号：US06667268B1

公开(公告)日：2003-12-23

申请号：US09648117

申请日：2000-08-25

申请人： Yasushi Sugawara ,  Hisaaki Gyoten ,  Makoto Uchida ,  Eiichi Yasumoto ,  Teruhisa Kanbara ,  Junji Morita

发明人： Yasushi Sugawara ,  Hisaaki Gyoten ,  Makoto Uchida ,  Eiichi Yasumoto ,  Teruhisa Kanbara ,  Junji Morita

IPC分类号： H01M488

CPC分类号： H01M4/881 ,  H01M4/8807 ,  H01M4/8828 ,  H01M4/886 ,  H01M4/926 ,  H01M8/1004 ,  H01M2300/0082 ,  Y02P70/56

摘要： A polymer electrolyte fuel cell which includes a pair of electrodes, a polymer electrolyte membrane interposed between the pair of the electrodes, a first conductive separator having a channel for supplying an oxidant gas to one of the electrodes therethrough, and a second conductive separator having a channel for supplying a fuel gas to the other of the electrodes therethrough, wherein at least one of the electrodes includes a porous catalyst layer formed on the surface of the polymer electrolyte membrane, or formed on the surface of a porous conductive base.

摘要翻译： 一种聚合物电解质燃料电池，其包括一对电极，插入在所述一对电极之间的聚合物电解质膜，具有用于向其中一个电极供给氧化剂气体的通道的第一导电隔板，以及具有 用于向另一个电极提供燃料气体的通道，其中至少一个电极包括形成在聚合物电解质膜的表面上的多孔催化剂层，或者形成在多孔导电性基材的表面上。

公开(公告)号：US07201993B2

公开(公告)日：2007-04-10

申请号：US10089814

申请日：2001-08-03

申请人： Makoto Uchida ,  Yasushi Sugawara ,  Eiichi Yasumoto ,  Akihiko Yoshida ,  Junji Morita ,  Masao Yamamoto ,  Shinya Kosako ,  Osamu Sakai ,  Yoshihiro Hori

发明人： Makoto Uchida ,  Yasushi Sugawara ,  Eiichi Yasumoto ,  Akihiko Yoshida ,  Junji Morita ,  Masao Yamamoto ,  Shinya Kosako ,  Osamu Sakai ,  Yoshihiro Hori

IPC分类号： H01M4/00

CPC分类号： H01M4/8605 ,  H01M4/8807 ,  H01M4/8828 ,  H01M4/921 ,  H01M4/926 ,  H01M8/0234 ,  Y02P70/56 ,  Y10T29/49115

摘要： The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell includes a hydrogen ion conductive polymer electrolyte membrane; and a pair of electrodes having catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers, in which the catalyst layer of at least one of the electrodes comprises carbon particles supporting a noble metal catalyst, and the carbon particles include at least two kinds of carbon particles adsorbing a hydrogen ion conductive polymer electrolyte in mutually different dispersed states.

摘要翻译： 本发明通过在催化剂层内形成非常接近的气体通道，质子通道和电子通道，提供了具有增加的反应面积的聚合物电解质燃料电池。 该聚合物电解质燃料电池包括氢离子导电聚合物电解质膜; 以及一对电极，其具有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的催化剂层，其中至少一个电极的催化剂层包含负载贵金属催化剂的碳粒子， 并且碳粒子包含以相互不同的分散状态吸附氢离子导电性高分子电解质的至少2种碳粒子。

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。