公开(公告)号：US07470483B2

公开(公告)日：2008-12-30

申请号：US10730256

申请日：2003-12-09

申请人： Akihiko Yoshida ,  Yoshihiro Hori ,  Osamu Sakai ,  Makoto Uchida ,  Eiichi Yasumoto ,  Shinya Kosako

发明人： Akihiko Yoshida ,  Yoshihiro Hori ,  Osamu Sakai ,  Makoto Uchida ,  Eiichi Yasumoto ,  Shinya Kosako

IPC分类号： H01M4/96

CPC分类号： H01M8/1004 ,  H01M4/8605 ,  H01M8/04119

摘要： A carbon fiber woven fabric for use as a gas diffusion layer base material in a polymer electrolyte fuel cell has a surface that is smoothed and further optimized to inhibit non-uniform infiltration of a coating for water-repellent-layer formation, to provide an electrolyte membrane-electrode assembly suitable for operation under a high humidification condition. The gas diffusion layer base material may be a carbon fiber woven fabric, wherein a ratio of the area of gap portions where neither warp thread nor weft thread exists: (10/W−Y)(10/Z−X) to the area of portions where warp thread is crossing weft thread: XY mm2 is in the range of about 1/1500 to about 1/5, where the carbon fiber woven fabric has a warp density of Z threads/cm, a weft density of W threads/cm, a warp thickness of X mm and a weft thickness of Y mm.

摘要翻译： 在聚合物电解质燃料电池中用作气体扩散层基材的碳纤维织物具有平滑化和进一步优化的表面，以抑制用于防水层形成的涂层的不均匀渗透，从而提供电解质 膜 - 电极组件适用于高加湿条件下的操作。 气体扩散层基材可以是碳纤维织物，其中不存在经线和纬纱的间隙部分的面积比（10 / WY）（10 / ZX）与经线部分的面积 横穿纬纱：XY mm2在约1/1500至约1/5的范围内，其中碳纤维织物的经纱密度为Z线/厘米，纬纱密度为W丝/厘米，经纱厚度 X mm，纬纱厚度Y mm。

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。

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：US20060229194A1

公开(公告)日：2006-10-12

申请号：US11425191

申请日：2006-06-20

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： H01M4/88 ,  B05D5/12

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， 并且所述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：US07455703B2

公开(公告)日：2008-11-25

申请号：US11425191

申请日：2006-06-20

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： H01M4/82 ,  H01M6/00 ,  H01M8/00 ,  H01M2/00

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：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：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：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。