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    Method for resorting characteristics of polymer electrolyte fuel cell
    3.
    发明公开
    Method for resorting characteristics of polymer electrolyte fuel cell 审中-公开
    VERFAHREN ZUM WIEDERHERSTELLEN DER CHARAKTERISTIKAEN VON POLYMER-ELEKTROLYT-BRENNSTOFFZELLEN

    公开(公告)号：EP1536502A2

    公开(公告)日：2005-06-01

    申请号：EP04024041.8

    申请日：2000-09-14

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Gyoten, Hisaaki ,  Kanbara, Teruhisa ,  Uchida, Makoto ,  Hatoh, Kazuhito ,  Sakai, Osamu

    IPC分类号： H01M8/10 ,  H01M8/24 ,  H01M8/04

    CPC分类号： H01M8/0662 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/04104 ,  H01M8/04223 ,  H01M8/04679 ,  H01M8/0488 ,  H01M8/0491 ,  H01M8/04952 ,  H01M8/241 ,  H01M8/2483 ,  H01M2300/0082

    摘要： The present invention restores the performance of a fuel cell by: operating the cell in a loaded current mode different from that of a normal operation for a predetermined time; supplying an oxidant gas and a fuel gas to an anode and a cathode respectively and outputting a current from a cell body with the polarity being inverted; supplying a pressurized gas to at least one of the cathode and anode in an amount not less than 1.5 times as much as that in the normal operation or supplying oxygen to the cathode; or injecting a cleaning solution into the cathode and anode through a gas flow path. Consequently, it is possible to effectively restore a degraded performance of a polymer electrolyte fuel cell caused by a long operation.

    摘要翻译： 本发明通过以下方式恢复燃料电池的性能：以与正常操作不同的负载电流模式操作电池达预定时间; 分别向阳极和阴极供给氧化剂气体和燃料气体，并从极性反转的电池主体输出电流; 向阴极和阳极中的至少一个供给加压气体，其量不小于正常操作的1.5倍或向阴极供应氧气; 或通过气体流动路径将清洁溶液注入阴极和阳极。 因此，可以有效地恢复长时间操作引起的聚合物电解质燃料电池的性能下降。

    Solid polymer type fuel cell and method for manufacturing the same
    5.
    发明公开
    Solid polymer type fuel cell and method for manufacturing the same 失效
    它们的制备固体聚合物燃料电池和过程

    公开(公告)号：EP0874413A3

    公开(公告)日：2000-04-12

    申请号：EP98107352.1

    申请日：1998-04-22

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Uchida, Makoto ,  Fukuoka, Yuko ,  Sugawara, Yasushi ,  Eda, Nobuo

    IPC分类号： H01M8/10 ,  H01M4/88

    CPC分类号： H01M4/926 ,  H01M8/1004 ,  H01M2300/0082 ,  Y02P70/56 ,  Y10T29/49115

    摘要： An electrode of solid polymer electrolyte fuel cells is produced by a step of preparing a mixed liquid containing an organic solvent, a noble metal catalyst- (3) supporting carbon powder (4) and a colloid of a solid polymer electrolyte having a particle size of 1 nm or more and less than 400 nm, said colloid being adsorbed to the carbon powder and a step of forming an electrode by coating said mixed liquid on one side of a gas-diffusible layer (9). According to the present invention, the solid polymer electrolyte (5) is surely adsorbed to the surface of the catalyst and thus a wide reaction area can be secured. Furthermore, thickness of the solid polymer electrolyte layer can be controlled to one in which hydrogen and oxygen can be easily diffused.

    Solid polymer type fuel cell and method for manufacturing the same
    6.
    发明公开
    Solid polymer type fuel cell and method for manufacturing the same 失效
    Brennstoffzelle mit festen Polymerelektrolyten und Verfahren zu seiner Herstellung。

    公开(公告)号：EP0637851A1

    公开(公告)日：1995-02-08

    申请号：EP94110214.7

    申请日：1994-06-30

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Uchida, Makoto ,  Aoyama, Yuko ,  Eda, Nobuo ,  Ogawa, Masahiko

    IPC分类号： H01M8/10

    CPC分类号： H01M8/1004 ,  Y02P70/56 ,  Y10T29/49115

    摘要： The invention provides a solid polymer electrolyte having high performances in which the reaction area of electrode is increased by uniformly dispersing and bonding a solid polymer electrolyte and a catalyst and the ability of gas feeding to the reaction site is improved by adding a fluoropolymer so that the catalyst is not excessively coated. A method for making the fuel cell is also provided. The electrode provided on at least one side of a solid polymer electrolyte membrane is formed by coating on one side of a gas-diffusible layer a mixed dispersion of a noble metal catalyst, a carbon fine powder and a colloidal dispersion of a solid polymer electrolyte, the colloidal dispersion being prepared using an organic solvent having a polar group other than hydroxyl group in the molecule and having a carbon chain of 1-8 carbon atoms which bonds to the polar group or having a dielectric constant of 3-10.

    摘要翻译： 本发明提供了一种具有高性能的固体聚合物电解质，其中通过均匀分散和粘合固体聚合物电解质和催化剂来增加电极的反应面积，并且通过加入含氟聚合物来改善供气到反应部位的能力，使得 催化剂不被过度涂覆。 还提供了制造燃料电池的方法。 设置在固体聚合物电解质膜的至少一侧的电极通过在气体扩散层的一侧上涂覆贵金属催化剂，碳细粉末和固体聚合物电解质的胶体分散体的混合分散体而形成， 胶体分散体是用分子中具有非羟基的极性基团的有机溶剂制备的，具有与极性基团键合或介电常数为3-10的碳原子数为1-8的碳原子。

    Polymer electrolyte fuel cell
    7.
    发明公开
    Polymer electrolyte fuel cell 有权
    Polymer-Elektrolyt Brennstoffzelle

    公开(公告)号：EP1298745A3

    公开(公告)日：2006-10-04

    申请号：EP02256655.8

    申请日：2002-09-25

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Yoshida, Akihiko ,  Yamamoto, Masao ,  Niikura, Junji ,  Takebe, Yasuo ,  Sakai, Osamu ,  Uchida, Makoto

    IPC分类号： H01M4/86 ,  H01M8/10 ,  H01M8/04

    CPC分类号： H01M4/8821 ,  H01M4/8605 ,  H01M4/8642 ,  H01M4/8652 ,  H01M4/8657 ,  H01M4/8828 ,  H01M4/92 ,  H01M4/96 ,  H01M8/04089 ,  H01M8/1004

    摘要： A porous supporting carbon body of a gas diffusion layer is provided with a larger number of smaller pores at its catalyst layer side and a smaller number of larger pores at the other side, particularly with an appropriate distribution of finer mesh at its catalyst layer side and coarser mesh at the other side. Thereby, a high performance polymer electrolyte fuel cell can be obtained in which water generated at the catalyst layer is quickly sucked out to the gas diffusion layer, and is evaporated at the gas diffusion layer to be effectively exhausted to outside the fuel cell, so that excessive water can be prevented from retaining in the gas diffusion electrode, with the polymer electrolyte membrane being maintained at an appropriately wet condition.
    Further, a gas diffusion layer is provided with an electrically conductive polymer-containing layer comprising carbon particles and a polymer material. In it, a combination of two kinds of carbon particles having different amounts of acidic function group is used in a manner that the weight ratio of one kind having a larger acidic function group, relative to the other kind, increases from one end of the gas diffusion layer, corresponding to the inlet of a gas flow channel, to the other end. Thereby, the water permeating function at the surface of the gas diffusion layer can be so adjusted that the inside of the MEA is maintained at an appropriately wet condition, while excessive water is quickly exhausted to outside of the fuel cell together with e.g. the reactive gas. This can also be achieved by using a combination of two kinds of polymer materials in the electrically conductive polymer-containing layer in a manner that the two kinds have either different degrees of crystallinity or different coefficients of moisture permeability, so that the degrees of crystallinity decreases and the coefficients of moisture permeability increases from the one end to the other end of the gas diffusion layer.

    摘要翻译： 气体扩散层的多孔支撑碳体在其催化剂层侧具有更多的较小的孔，另一侧具有较小的较大的孔，特别是在其催化剂层侧具有适当的细网分布， 另一侧较粗的网格。 由此，能够得到将催化剂层中产生的水快速吸入气体扩散层的高性能聚合物电解质型燃料电池，在气体扩散层蒸发而被有效地排出到燃料电池外部， 可以防止过多的水滞留在气体扩散电极中，使聚合物电解质膜保持在适当的湿润状态。 此外，气体扩散层设置有包含碳颗粒和聚合物材料的导电聚合物含有层。 其中，使用具有不同量的酸性官能团的两种碳颗粒的组合，使得具有较大酸性官能团的一种相对于另一种类型的重量比从气体的一端增加 对应于气体流路的入口的扩散层到达另一端。 由此，可以调节气体扩散层表面的透水功能，使得MEA的内部保持在适当的湿润状态，同时过量的水被快速地排出到燃料电池外部。 反应气体。 这也可以通过在含导电聚合物的层中使用两种聚合物材料的组合来实现，其中两种具有不同的结晶度或不同的透湿系数，使得结晶度降低 并且透湿系数从气体扩散层的一端到另一端增加。

    Gas diffusion layer, electrode and membrane electrode assemby for fuel cell, and production methods thereof
    8.
    发明公开
    Gas diffusion layer, electrode and membrane electrode assemby for fuel cell, and production methods thereof 有权
    Gasdiffusionsschicht，Elektrode und Membranelektrodenanordnungfüreine Brennstoffzelle und deren Herstellungsmethoden

    公开(公告)号：EP1538689A2

    公开(公告)日：2005-06-08

    申请号：EP04257494.7

    申请日：2004-12-02

    申请人： Matsushita Electric Industrial Co., Ltd.

    发明人： Yoshida, Akihito ,  Tsuji, Yoichiro ,  Yamauchi, Masaki ,  Hori, Yoshihiro ,  Uchida, Makoto ,  Gyoten, Hisaaki ,  Kanbara, Teruhisa

    IPC分类号： H01M8/10 ,  H01M4/86 ,  H01M4/88 ,  H01M4/96

    CPC分类号： H01M8/023 ,  H01M4/8605 ,  H01M8/0234 ,  H01M8/0243 ,  Y02P70/56

    摘要： The present invention provides a gas diffusion layer (13) for a fuel cell (1) 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 (13) for a fuel cell includes 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（1）的气体扩散层（13），其具有适当的刚度，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（13）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。

    Fuel cell system, fuel cell operation method, program, and recording medium
    10.
    发明公开
    Fuel cell system, fuel cell operation method, program, and recording medium 审中-公开
    一种燃料电池系统，用于操作燃料电池的方法，程序和存储介质

    公开(公告)号：EP1501146A2

    公开(公告)日：2005-01-26

    申请号：EP04017146.4

    申请日：2004-07-20

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Takebe, Yasuo ,  Teranishi, Masatoshi ,  Nakagawa, Takashi ,  Uchida, Makoto ,  Segawa, Terutsugu

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04305 ,  G01R31/3651 ,  G01R31/3662 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04231 ,  H01M8/04298

    摘要： There have been insufficient highly reliable responses appropriate to the causes of power generation abnormalities in fuel cells that generate power by supplying an oxidizing agent containing oxygen to the cathode and by supplying a fuel gas containing hydrogen to the anode. In order to overcome this problem the invention provides for a fuel cell power generation system equipped with a means that includes AC signal generation block 503 and load 502 that varies the load current for fuel cell 501, which operates to generate power; voltage measurement block 504 that measures the voltage response to the load current variation; impedance measurement block 505 that computes the impedance of fuel cell 501, based on the results of the measurement of the voltage response; and fuel cell control block 506 that varies the operating conditions of fuel cell 501, by utilizing the impedance computation results.

    摘要翻译： 已经有适宜发电的原因，高度可靠的响应不足Abno