公开(公告)号：US20100248074A1

公开(公告)日：2010-09-30

申请号：US12749907

申请日：2010-03-30

申请人： Hideyuki UEDA ,  Takashi Akiyama ,  Hiroaki Matsuda

发明人： Hideyuki UEDA ,  Takashi Akiyama ,  Hiroaki Matsuda

IPC分类号： H01M8/10

CPC分类号： H01M4/8636 ,  H01M4/86 ,  H01M4/921 ,  H01M4/926 ,  H01M8/1004 ,  H01M2004/8689

摘要： A membrane electrode assembly for a direct oxidation fuel cell includes an electrolyte membrane, an anode disposed on one face of the electrolyte membrane, and a cathode disposed on the other face of the electrolyte membrane. The cathode includes a cathode catalyst layer with a first main surface and a second main surface, and the cathode catalyst layer includes a cathode catalyst and a polymer electrolyte. The cathode catalyst layer includes a plurality of first regions and a plurality of second regions, and the first regions and the second regions are different in polymer electrolyte content. The polymer electrolyte content in each of the second regions is lower than the polymer electrolyte content in each of the first regions. The second regions are continuous from the first main surface of the cathode catalyst layer to the second main surface.

摘要翻译： 用于直接氧化燃料电池的膜电极组件包括电解质膜，设置在电解质膜的一个面上的阳极和设置在电解质膜的另一面上的阴极。 阴极包括具有第一主表面和第二主表面的阴极催化剂层，阴极催化剂层包括阴极催化剂和聚合物电解质。 阴极催化剂层包括多个第一区域和多个第二区域，第一区域和第二区域的聚合物电解质含量不同。 每个第二区域中的聚合物电解质含量低于每个第一区域中的聚合物电解质含量。 第二区域从阴极催化剂层的第一主表面连续到第二主表面。

公开(公告)号：US20090148752A1

公开(公告)日：2009-06-11

申请号：US12328239

申请日：2008-12-04

申请人： Hideyuki UEDA ,  Hiroaki Matsuda

发明人： Hideyuki UEDA ,  Hiroaki Matsuda

IPC分类号： H01M4/86

CPC分类号： H01M8/1009 ,  H01M4/8605 ,  H01M4/8636

摘要： A direct oxidation fuel cell of the invention includes at least one unit cell, the unit cell including a membrane-electrode assembly including an electrolyte membrane and an anode and a cathode sandwiching the electrolyte membrane, an anode-side separator being in contact with the anode, and a cathode-side separator being in contact with the cathode. The anode includes an anode catalyst layer and an anode diffusion layer, the anode catalyst layer containing an anode catalyst. The cathode includes a cathode catalyst layer and a cathode diffusion layer, the cathode catalyst layer containing a cathode catalyst. The anode-side separator has a fuel flow channel for supplying fuel to the anode. A portion of the cathode catalyst layer facing the upstream of the fuel flow channel has an effective reaction area per unit area larger than that of a portion of the cathode catalyst layer facing the downstream of the fuel flow channel.

摘要翻译： 本发明的直接氧化型燃料电池包括至少一个单元电池，所述单位电池包括包含电解质膜和阳极的膜 - 电极组件和夹着所述电解质膜的阴极，与所述阳极接触的阳极侧隔板 和与阴极接触的阴极侧隔板。 阳极包括阳极催化剂层和阳极扩散层，阳极催化剂层含有阳极催化剂。 阴极包括阴极催化剂层和阴极扩散层，阴极催化剂层含有阴极催化剂。 阳极侧隔板具有用于向阳极供应燃料的燃料流动通道。 面向燃料流路的上游的阴极催化剂层的一部分具有比面向燃料流路的下游的阴极催化剂层的一部分大的单位面积的有效反应面积。

公开(公告)号：US20100009229A1

公开(公告)日：2010-01-14

申请号：US12498759

申请日：2009-07-07

申请人： Hiroaki Matsuda ,  Hideyuki Ueda ,  Takashi Akiyama

发明人： Hiroaki Matsuda ,  Hideyuki Ueda ,  Takashi Akiyama

IPC分类号： H01M4/02

CPC分类号： H01M8/1004 ,  H01M4/861 ,  H01M8/0245 ,  H01M8/1009

摘要： The direct oxidation fuel cell of the present invention is provided with: a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane interposed between the anode and the cathode; an anode-side separator having a fuel flow channel for supplying fuel to the anode; and a cathode-side separator having an oxidant flow channel for supplying oxidant to the cathode, in which the anode includes an anode catalyst layer disposed at the side of the electrolyte membrane and an anode diffusion layer disposed at the side of the anode-side separator. The anode diffusion layer includes a water repellent layer disposed at the side of the anode catalyst layer and including a first conductive agent and a first water repellent agent; and a substrate layer disposed at the side of the anode-side separator, and the porosity of the substrate layer is higher at the downstream side than at the upstream side of the fuel flow.

摘要翻译： 本发明的直接氧化型燃料电池具备：阳极，阴极和置于阳极和阴极之间的电解质膜的膜电极组件; 具有用于向阳极供给燃料的燃料流路的阳极侧隔板; 以及阴极侧隔板，其具有用于向阴极供给氧化剂的氧化剂流动通道，其中阳极包括设置在电解质膜侧的阳极催化剂层和设置在阳极侧隔板侧的阳极扩散层 。 阳极扩散层包括设置在阳极催化剂层一侧的防水层，包括第一导电剂和第一防水剂; 以及设置在阳极侧隔板侧的基板层，并且基板层的孔隙率在下游侧比在燃料流的上游侧高。

公开(公告)号：US08283089B2

公开(公告)日：2012-10-09

申请号：US12328239

申请日：2008-12-04

申请人： Hideyuki Ueda ,  Hiroaki Matsuda

发明人： Hideyuki Ueda ,  Hiroaki Matsuda

IPC分类号： H01M4/86 ,  H01M8/10

CPC分类号： H01M8/1009 ,  H01M4/8605 ,  H01M4/8636

摘要： A direct oxidation fuel cell of the invention includes at least one unit cell, the unit cell including a membrane-electrode assembly including an electrolyte membrane and an anode and a cathode sandwiching the electrolyte membrane, an anode-side separator being in contact with the anode, and a cathode-side separator being in contact with the cathode. The anode includes an anode catalyst layer and an anode diffusion layer, the anode catalyst layer containing an anode catalyst. The cathode includes a cathode catalyst layer and a cathode diffusion layer, the cathode catalyst layer containing a cathode catalyst. The anode-side separator has a fuel flow channel for supplying fuel to the anode. A portion of the cathode catalyst layer facing the upstream of the fuel flow channel has an effective reaction area per unit area larger than that of a portion of the cathode catalyst layer facing the downstream of the fuel flow channel.

摘要翻译： 本发明的直接氧化型燃料电池包括至少一个单元电池，所述单位电池包括包含电解质膜和阳极的膜 - 电极组件和夹着所述电解质膜的阴极，与所述阳极接触的阳极侧隔板 和与阴极接触的阴极侧隔板。 阳极包括阳极催化剂层和阳极扩散层，阳极催化剂层含有阳极催化剂。 阴极包括阴极催化剂层和阴极扩散层，阴极催化剂层含有阴极催化剂。 阳极侧隔板具有用于向阳极供给燃料的燃料流动通道。 面向燃料流路的上游的阴极催化剂层的一部分具有比面向燃料流路的下游的阴极催化剂层的一部分大的单位面积的有效反应面积。

公开(公告)号：US08105732B2

公开(公告)日：2012-01-31

申请号：US12431270

申请日：2009-04-28

申请人： Hideyuki Ueda ,  Hiroaki Matsuda

发明人： Hideyuki Ueda ,  Hiroaki Matsuda

IPC分类号： H01M4/02

CPC分类号： H01M8/0245 ,  H01M4/861 ,  H01M4/8642 ,  H01M4/8657 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/04156 ,  H01M8/1009 ,  H01M8/1011 ,  H01M2004/8689 ,  H01M2250/30 ,  Y02B90/18 ,  Y02E60/523

摘要： The direct oxidation fuel cell of the invention includes at least one unit cell, the unit cell including: a membrane-electrode assembly including an anode, a cathode, and an electrolyte membrane interposed therebetween; an anode-side separator; and a cathode-side separator. The cathode includes a first cathode catalyst layer, a diffusion layer being in contact with the cathode-side separator, and an intermediate layer disposed therebetween. The intermediate layer includes a second cathode catalyst layer and a porous composite layer, the porous composite layer containing a hydrophobic material and an electron-conductive material. The anode-side separator has a fuel flow channel, and the cathode-side separator has an oxidant flow channel. At least a portion of the intermediate layer facing the upstream portion of the fuel flow channel includes the second cathode catalyst layer, and at least portions of the intermediate layer facing the midstream and downstream portions of the fuel flow channel include the porous composite layer.

摘要翻译： 本发明的直接氧化型燃料电池包括至少一个单电池，所述单电池包括：膜电极组件，其包括阳极，阴极和插入其间的电解质膜; 阳极侧隔板; 和阴极侧隔板。 阴极包括第一阴极催化剂层，与阴极侧隔板接触的扩散层和设置在阴极侧隔板之间的中间层。 中间层包括第二阴极催化剂层和多孔复合层，多孔复合层含有疏水材料和电子传导材料。 阳极侧隔板具有燃料流路，阴极侧隔板具有氧化剂流路。 面向燃料流动通道的上游部分的中间层的至少一部分包括第二阴极催化剂层，并且面向燃料流动通道的中游和下游部分的中间层的至少部分包括多孔复合层。

公开(公告)号：US08399144B2

公开(公告)日：2013-03-19

申请号：US12336149

申请日：2008-12-16

申请人： Hideyuki Ueda ,  Hiroaki Matsuda ,  Takashi Akiyama

发明人： Hideyuki Ueda ,  Hiroaki Matsuda ,  Takashi Akiyama

IPC分类号： H01M8/10

CPC分类号： H01M4/8605 ,  H01M4/881 ,  H01M8/04156 ,  H01M8/1004 ,  H01M8/1011 ,  Y02E60/523

摘要： A membrane-electrode assembly for a direct oxidation fuel cell includes an electrolyte membrane, and an anode and a cathode sandwiching said electrolyte membrane. The cathode includes a catalyst layer in contact with the electrolyte membrane and a diffusion layer formed on the catalyst layer, and the catalyst layer contains 2 to 20% by volume of pores. A direct oxidation fuel cell including this membrane-electrode assembly has excellent power generating performance and durability.

摘要翻译： 用于直接氧化燃料电池的膜 - 电极组件包括电解质膜和夹着所述电解质膜的阳极和阴极。 阴极包括与电解质膜接触的催化剂层和形成在催化剂层上的扩散层，催化剂层含有2〜20体积％的孔。 包括该膜 - 电极组件的直接氧化燃料电池具有优异的发电性能和耐久性。

公开(公告)号：US20090280377A1

公开(公告)日：2009-11-12

申请号：US12431270

申请日：2009-04-28

申请人： Hideyuki Ueda ,  Hiroaki Matsuda

发明人： Hideyuki Ueda ,  Hiroaki Matsuda

IPC分类号： H01M8/10

CPC分类号： H01M8/0245 ,  H01M4/861 ,  H01M4/8642 ,  H01M4/8657 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/04156 ,  H01M8/1009 ,  H01M8/1011 ,  H01M2004/8689 ,  H01M2250/30 ,  Y02B90/18 ,  Y02E60/523

摘要： The direct oxidation fuel cell of the invention includes at least one unit cell, the unit cell including: a membrane-electrode assembly including an anode, a cathode, and an electrolyte membrane interposed therebetween; an anode-side separator; and a cathode-side separator. The cathode includes a first cathode catalyst layer, a diffusion layer being in contact with the cathode-side separator, and an intermediate layer disposed therebetween. The intermediate layer includes a second cathode catalyst layer and a porous composite layer, the porous composite layer containing a hydrophobic material and an electron-conductive material. The anode-side separator has a fuel flow channel, and the cathode-side separator has an oxidant flow channel. At least a portion of the intermediate layer facing the upstream portion of the fuel flow channel includes the second cathode catalyst layer, and at least portions of the intermediate layer facing the midstream and downstream portions of the fuel flow channel include the porous composite layer.

摘要翻译： 本发明的直接氧化型燃料电池包括至少一个单电池，所述单电池包括：膜电极组件，其包括阳极，阴极和插入其间的电解质膜; 阳极侧隔板; 和阴极侧隔板。 阴极包括第一阴极催化剂层，与阴极侧隔板接触的扩散层和设置在阴极侧隔板之间的中间层。 中间层包括第二阴极催化剂层和多孔复合层，多孔复合层含有疏水材料和电子传导材料。 阳极侧隔板具有燃料流路，阴极侧隔板具有氧化剂流路。 面向燃料流动通道的上游部分的中间层的至少一部分包括第二阴极催化剂层，并且面向燃料流动通道的中游和下游部分的中间层的至少部分包括多孔复合层。

公开(公告)号：US20130164650A1

公开(公告)日：2013-06-27

申请号：US13820735

申请日：2012-07-09

申请人： Hideyuki Ueda ,  Hiroaki Matsuda

发明人： Hideyuki Ueda ,  Hiroaki Matsuda

IPC分类号： H01M8/10

CPC分类号： H01M8/1009 ,  H01M4/8605 ,  H01M4/8663 ,  H01M4/8668 ,  H01M4/9083 ,  H01M8/1004 ,  H01M8/1011 ,  H01M2008/1095 ,  Y02E60/523

摘要： Disclosed is a membrane electrode assembly for a direct oxidation fuel cell, including an anode, a cathode, and an electrolyte membrane disposed therebetween. The anode includes an anode catalyst layer disposed on one principal surface of the electrolyte membrane, and an anode diffusion layer laminated on the anode catalyst layer. The anode catalyst layer includes a first particulate conductive carbon, an anode catalyst supported thereon, and a first polymer electrolyte. The cathode includes a cathode catalyst layer disposed on the other principal surface of the electrolyte membrane, and a cathode diffusion layer laminated on the cathode catalyst layer. The cathode catalyst layer includes a second particulate conductive carbon, a cathode catalyst supported thereon, and a second polymer electrolyte. The weight ratio M1 of the first polymer electrolyte in the anode catalyst layer is higher than the weight ratio M2 of the second polymer electrolyte in the cathode catalyst layer.

摘要翻译： 公开了一种用于直接氧化燃料电池的膜电极组件，包括阳极，阴极和设置在其间的电解质膜。 阳极包括设置在电解质膜的一个主表面上的阳极催化剂层和层叠在阳极催化剂层上的阳极扩散层。 阳极催化剂层包括第一颗粒导电碳，负载在其上的阳极催化剂和第一聚合物电解质。 阴极包括设置在电解质膜的另一个主表面上的阴极催化剂层和层叠在阴极催化剂层上的阴极扩散层。 阴极催化剂层包括第二颗粒导电碳，负载在其上的阴极催化剂和第二聚合物电解质。 阳极催化剂层中的第一聚合物电解质的重量比M1高于阴极催化剂层中的第二聚合物电解质的重量比M2。

公开(公告)号：US08377601B2

公开(公告)日：2013-02-19

申请号：US12498759

申请日：2009-07-07

申请人： Hiroaki Matsuda ,  Hideyuki Ueda ,  Takashi Akiyama

发明人： Hiroaki Matsuda ,  Hideyuki Ueda ,  Takashi Akiyama

IPC分类号： H01M8/06

CPC分类号： H01M8/1004 ,  H01M4/861 ,  H01M8/0245 ,  H01M8/1009

摘要： The direct oxidation fuel cell of the present invention is provided with: a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane interposed between the anode and the cathode; an anode-side separator having a fuel flow channel for supplying fuel to the anode; and a cathode-side separator having an oxidant flow channel for supplying oxidant to the cathode, in which the anode includes an anode catalyst layer disposed at the side of the electrolyte membrane and an anode diffusion layer disposed at the side of the anode-side separator. The anode diffusion layer includes a water repellent layer disposed at the side of the anode catalyst layer and including a first conductive agent and a first water repellent agent; and a substrate layer disposed at the side of the anode-side separator, and the porosity of the substrate layer is higher at the downstream side than at the upstream side of the fuel flow.

摘要翻译： 本发明的直接氧化型燃料电池具备：阳极，阴极和置于阳极和阴极之间的电解质膜的膜电极组件; 具有用于向阳极供给燃料的燃料流路的阳极侧隔板; 以及阴极侧隔板，其具有用于向阴极供给氧化剂的氧化剂流动通道，其中阳极包括设置在电解质膜侧的阳极催化剂层和设置在阳极侧隔板侧的阳极扩散层 。 阳极扩散层包括设置在阳极催化剂层一侧的防水层，包括第一导电剂和第一防水剂; 以及设置在阳极侧隔板侧的基板层，并且基板层的孔隙率在下游侧比在燃料流的上游侧高。

公开(公告)号：US08318364B2

公开(公告)日：2012-11-27

申请号：US12498742

申请日：2009-07-07

申请人： Hiroaki Matsuda ,  Hideyuki Ueda

发明人： Hiroaki Matsuda ,  Hideyuki Ueda

IPC分类号： H01M8/04

CPC分类号： H01M8/04492 ,  H01M8/04231

摘要： A fuel cell system includes a fuel cell stack for generating power and power generation control means. The fuel cell stack has at least one cell that includes a cathode to which an oxidant is supplied, an anode to which a fuel is supplied, and a polymer electrolyte membrane sandwiched between the cathode and the anode. The power generation control means has dryness degree determination means for determining the degree of dryness of the fuel cell stack based on shut-down period. When the shut-down period is shorter than a predetermined period of time, the power generation control means supplies a gas for drying to the cathode for a predetermined period of time, to remove water remaining in the cathode. When the shut-down period is equal to or longer than the predetermined period of time, such a drying operation is not performed.

摘要翻译： 燃料电池系统包括用于产生电力和发电控制装置的燃料电池堆。 燃料电池堆具有至少一个电池，其包括供给氧化剂的阴极，供给燃料的阳极和夹在阴极和阳极之间的高分子电解质膜。 发电控制装置具有干燥度确定装置，用于基于关闭时间确定燃料电池堆的干燥程度。 当关闭期间短于预定时间时，发电控制装置将用于干燥的气体预定时间提供给阴极，以除去残留在阴极中的水。 当关闭期间等于或长于预定时间段时，不执行这种干燥操作。