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：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：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：US20100062307A1

公开(公告)日：2010-03-11

申请号：US12556167

申请日：2009-09-09

申请人： Hideyuki UEDA ,  Takashi Akiyama ,  Hiroaki Matsuda

发明人： Hideyuki UEDA ,  Takashi Akiyama ,  Hiroaki Matsuda

IPC分类号： H01M8/10 ,  H01M2/00

CPC分类号： H01M8/1009 ,  H01M4/8642 ,  H01M4/8652 ,  H01M4/921 ,  H01M4/926

摘要： A direct oxidation fuel cell includes at least one unit cell. The unit cell includes: a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane sandwiched therebetween; an anode-side separator having a fuel flow channel for supplying a fuel to the anode; and a cathode-side separator having an oxidant flow channel for supplying an oxidant to the cathode. The cathode includes a cathode catalyst layer in contact with the electrolyte membrane, and a cathode diffusion layer in contact with the cathode-side separator. The cathode catalyst layer includes a cathode catalyst and a polymer electrolyte, and the amount of the polymer electrolyte contained in a portion of the cathode catalyst layer facing an upstream portion of the fuel flow channel is smaller than that contained in a portion of the cathode catalyst layer facing a downstream portion of the fuel flow channel.

摘要翻译： 直接氧化燃料电池包括至少一个单电池。 单元电池包括：膜电极组件，其包括阳极，阴极和夹在其间的电解质膜; 具有用于向阳极供给燃料的燃料流路的阳极侧隔板; 以及具有用于向阴极供给氧化剂的氧化剂流路的阴极侧隔板。 阴极包括与电解质膜接触的阴极催化剂层和与阴极侧隔板接触的阴极扩散层。 阴极催化剂层包括阴极催化剂和聚合物电解质，并且阴极催化剂层的面对燃料流路的上游部分的部分中的聚合物电解质的量比阴极催化剂的一部分中所含的少 层面向燃料流动通道的下游部分。

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：US20070125786A1

公开(公告)日：2007-06-07

申请号：US10588279

申请日：2005-01-28

申请人： Takashi Akiyama ,  Junji Niikura ,  Kohji Yuasa ,  Yukihiro Okada ,  Satoshi Shibutani ,  Hideyuki Ueda

发明人： Takashi Akiyama ,  Junji Niikura ,  Kohji Yuasa ,  Yukihiro Okada ,  Satoshi Shibutani ,  Hideyuki Ueda

IPC分类号： B65D81/38 ,  H01M8/04

CPC分类号： H01M8/04208 ,  H01M8/0284 ,  H01M8/2475

摘要： A fuel container for storing a fuel liquid for a fuel cell has a double wall structure including an inner container for storing a fuel liquid and an outer container for housing the inner container, and a material capable of retaining the fuel between the inner container and the outer container. A fuel cell pack includes a fuel cell and a fuel container for storing a fuel liquid for the fuel cell. The fuel cell pack includes a double wall exterior casing having an inner casing for housing the fuel cell and the fuel container and an outer casing for housing the inner casing, and a material capable of retaining the fuel between the inner casing and the outer casing.

摘要翻译： 用于储存燃料电池用燃料液体的燃料容器具有双层壁结构，该双层壁结构包括用于储存燃料液的内部容器和用于容纳内部容器的外部容器，以及能够将燃料保持在内部容器和内部容器之间的材料 外容器。 燃料电池组包括燃料电池和用于存储用于燃料电池的燃料液体的燃料容器。 燃料电池组包括双壁外壳，其具有用于容纳燃料电池和燃料容器的内壳和用于容纳内壳的外壳，以及能够将燃料保持在内壳和外壳之间的材料。

公开(公告)号：US20060019131A1

公开(公告)日：2006-01-26

申请号：US11116288

申请日：2005-04-28

申请人： Takashi Akiyama ,  Yukihiro Okada ,  Satoshi Shibutani ,  Hideyuki Ueda ,  Masahiro Takada

发明人： Takashi Akiyama ,  Yukihiro Okada ,  Satoshi Shibutani ,  Hideyuki Ueda ,  Masahiro Takada

IPC分类号： H01M8/18 ,  H01M16/00

CPC分类号： H01M16/003 ,  H01M8/0258 ,  H01M8/0263 ,  H01M8/04223 ,  H01M8/04291 ,  H01M8/04302 ,  H01M8/1011 ,  H01M8/241 ,  Y02E60/523

摘要： A method for activating a direct oxidation fuel cell including an anode, a cathode, and a proton-conductive electrolyte membrane interposed between the anode and the cathode is provided. The anode and the cathode each have a catalyst layer on a face in contact with the proton-conductive electrolyte membrane. This method activates the fuel cell by passing a current through the fuel cell from an external power source, with the positive electrode and the negative electrode of the external power source connected to the anode and the cathode of the fuel cell, respectively, while supplying an organic fuel and an inert gas to the anode and the cathode, respectively.

公开(公告)号：US20050142433A1

公开(公告)日：2005-06-30

申请号：US11019031

申请日：2004-12-22

申请人： Hideyuki Ueda ,  Takashi Akiyama ,  Kohji Yuasa ,  Yukihiro Okada ,  Satoshi Shibutani

发明人： Hideyuki Ueda ,  Takashi Akiyama ,  Kohji Yuasa ,  Yukihiro Okada ,  Satoshi Shibutani

IPC分类号： H01M4/86 ,  B05D5/12 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M4/96 ,  H01M8/02 ,  H01M8/06 ,  H01M8/10

CPC分类号： H01M4/8867 ,  H01M4/8642 ,  H01M4/8657 ,  H01M4/8828 ,  H01M4/8882 ,  H01M4/8896 ,  H01M4/926 ,  H01M8/04197 ,  H01M8/1004 ,  H01M8/1011 ,  H01M8/1013 ,  H01M2004/8684 ,  Y02E60/522 ,  Y02E60/523 ,  Y02P70/56

摘要： In order to prevent the crossover of an organic fuel such as methanol in a fuel cell and to exhibit excellent electricity generation characteristics without impairing the utilization efficiency of the fuel, at least either of (1) a discontinuous catalyst layer being formed on a surface of an anode catalyst layer and having a higher density (existence probability) of platinum type catalyst than the anode catalyst layer and (2) an electrolyte polymer layer is formed at the interface between the anode catalyst layer and a polymer electrolyte membrane.

摘要翻译： 为了防止燃料电池中的有机燃料如甲醇的交叉，并且在不损害燃料的利用效率的情况下显示优异的发电特性，（1）不连续的催化剂层形成在 阳极催化剂层，并且具有比阳极催化剂层更高的铂型催化剂的密度（存在概率）和（2）在阳极催化剂层和聚合物电解质膜之间的界面处形成电解质聚合物层的阳极催化剂层。

公开(公告)号：US07968238B2

公开(公告)日：2011-06-28

申请号：US11752559

申请日：2007-05-23

申请人： Takashi Akiyama ,  Hideyuki Ueda ,  Toshihiko Ichinose ,  Masahiro Takada

发明人： Takashi Akiyama ,  Hideyuki Ueda ,  Toshihiko Ichinose ,  Masahiro Takada

IPC分类号： H01M8/04 ,  H01M8/00

CPC分类号： H01M8/04089 ,  H01M8/04589 ,  H01M8/04753 ,  H01M8/0488

摘要： A method for operating a fuel cell system including a fuel cell stack composed of a plurality of cells connected in series. The method includes the steps of: (a) supplying a fuel and an oxidant to anodes and cathodes of the cells, respectively, depending on a load to generate power at a constant voltage under constant voltage control; (b) temporarily suspending the supply of the oxidant with the fuel being supplied; and (c) lowering the constant voltage to a predetermined voltage simultaneously with or immediately before the suspension of the supply of the oxidant. According to this operation method, when the supply of the oxidant is suspended, a platinum catalyst in the cathodes can be reduced and reactivated in all the cells.

摘要翻译： 一种操作燃料电池系统的方法，所述燃料电池系统包括由串联连接的多个电池组成的燃料电池堆。 该方法包括以下步骤：（a）根据负载分别向电池的阳极和阴极供应燃料和氧化剂，以在恒定电压下以恒定电压控制发电; （b）暂时中止所供应的燃料供应氧化剂; 和（c）在氧化剂的供给停止之前或之前同时将恒定电压降低到预定电压。 根据该操作方法，当悬浮氧化剂的供给时，阴极中的铂催化剂可以在所有的电池中被还原并重新活化。

公开(公告)号：US20080213647A1

公开(公告)日：2008-09-04

申请号：US10567437

申请日：2005-03-02

申请人： Hideyuki Ueda ,  Takashi Akiyama ,  Kohji Yuasa ,  Shinsuke Fukuda ,  Yukihiro Okada ,  Satoshi Shibutani

发明人： Hideyuki Ueda ,  Takashi Akiyama ,  Kohji Yuasa ,  Shinsuke Fukuda ,  Yukihiro Okada ,  Satoshi Shibutani

IPC分类号： H01M8/02

CPC分类号： H01M8/0662 ,  B01D2258/0208 ,  H01M4/921 ,  H01M8/1011 ,  H01M2008/1095 ,  Y02E60/523

摘要： A fuel cell system, comprising a fuel cell having an anode, a cathode, and an electrolyte interposed therebetween and a purification device having a catalyst layer purifying substances discharged from the anode. The fuel cell system is characterized in that the purification device comprises a porous sheet having a catalyst layer and two flow passages disposed on both sides of the porous sheet, an inlet to which the substances discharged from the anode is led is formed in one flow passage, an inlet to which air is led and an outlet are formed in the other flow passage, and the substances discharged from the anode are discharged from the outlet after being purified through the porous sheet.

摘要翻译： 一种燃料电池系统，包括具有阳极，阴极和介于其间的电解质的燃料电池和具有净化从阳极排出的物质的催化剂层的净化装置。 燃料电池系统的特征在于，净化装置包括具有催化剂层和设置在多孔片两侧的两个流路的多孔片，从阳极排出的物质引入的入口形成在一个流路 在另一个流路中形成有空气被引导的入口和出口，并且从净化出的多孔片材后，从阳极排出的物质从出口排出。