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公开(公告)号：EP1533859A2
公开(公告)日：2005-05-25
申请号：EP04025958.2
申请日：2004-11-02
发明人： Unoki, Shigeyuki , Kanbara, Teruhisa , Yasumoto, Eiichi , Gyoten, Hisaaki , Takebe, Yasuo , Seki, Yasuhiro
CPC分类号： H01M8/026 , H01M8/023 , H01M8/0234 , H01M8/0239 , H01M8/0245 , H01M8/04126 , H01M8/04179 , H01M8/04291 , H01M8/1007 , H01M2008/1095
摘要： A fuel cell includes an electrolyte membrane, a pair of anode-side and cathode-side catalyst layers, a pair of an anode gas diffusion layer and a cathode gas diffusion layer, and a pair of an anode-side separator and a cathode-side separator. Also adjusted in the fuel cell is at least one of a fine pore diameter and a content of a water repellent agent in the anode gas diffusion layer and the cathode gas diffusion layer, so as to satisfy the following equation (1):
-0.07 ≤ (Ya-Xa) / ((Ya-Xa) + (Yc-Xc)) ≤ 0.15 (1)
wherein Xa represents a water feeding amount in the fuel gas thus fed, Ya represents a water discharging amount in the discharged fuel gas, Xc represents a water feeding amount in the oxidizing gas thus fed, and Yc represents a water discharging amount in the discharged oxidizing gas.摘要翻译： 燃料电池包括电解质膜，一对阳极侧和阴极侧催化剂层，一对阳极气体扩散层和阴极气体扩散层，以及一对阳极侧隔板和阴极侧 分隔器。 在燃料电池中也调整为阳极气体扩散层和阴极气体扩散层中的细孔径和防水剂含量中的至少一个，以满足下式（1）：-0.07≤ （Ya-Xa）/（（Ya-Xa）+（Yc-Xc））≤0.15其中，Xa表示所供给的燃料气体中的供水量，Ya表示排出燃料气体中的排水量，Xc表示 所供给的氧化气体的供水量，Yc表示排出的氧化气体中的排水量。
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2.发明公开Fuel cell having a plurality of independently controllable gas flow channels for varying loads 有权具有多个独立可控的气体通道，用于变化的负载要求燃料电池
公开(公告)号：EP1439593A2
公开(公告)日：2004-07-21
申请号：EP04000264.4
申请日：2004-01-08
CPC分类号： H01M8/04179 , H01M8/0258 , H01M8/0263 , H01M8/0267 , H01M8/04298 , H01M8/04746 , H01M8/241 , H01M8/2457 , H01M8/2483 , H01M8/2484 , H01M2008/1095
摘要： A fuel cell includes a stack of unit cells, each including: a hydrogen-ion conductive polymer electrolyte membrane; an anode and a cathode sandwiching the polymer electrolyte membrane; an anode-side conductive separator plate having a gas flow path for supplying and discharging a fuel gas to and from the anode; and a cathode-side conductive separator plate having a gas flow path for supplying and discharging an oxidant gas to and from the cathode. At least one of the anode-side and cathode-side separator plates has, in one face thereof, a plurality of independent gas flow channels, which constitute the gas flow path. When the fuel cell is operated at low load, the fuel gas or the oxidant gas is supplied to one or more of the plurality of independent gas flow channels, so that the fuel cell is capable of securing sufficient gas velocity.
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公开(公告)号：EP1304753A1
公开(公告)日：2003-04-23
申请号：EP01945738.1
申请日：2001-06-29
发明人： Yasumoto, Eiichi , Yoshida, Akihiko , Uchida, Makoto , Gyoten, Hisaaki , Hatoh, Kazuhito , Sugawara, Yasushi , Norita, Junji , Kanbara, Teruhisa , Takebe, Yasuo , Hosaka, Masato , Niikura, Junji
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 evenly 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， 由在它们之间夹持氢离子导电聚合物电解质膜和与催化剂层接触的气体扩散层的催化剂层组成的一对电极; 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。
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4.发明公开Solid polymer electrolyte fuel cell and method for producing the same 有权Brennstoffzelle mit festen Polymerelektrolyten und Herstellungsverfahrendafür
公开(公告)号：EP0951086A3
公开(公告)日：2001-10-17
申请号：EP99106282.9
申请日：1999-04-16
发明人： Gyoten, Hisaaki , Hatoh, Kazuhito , Nishida, Kazufumi, , Ohara, Hideo , Yasumoto, Eiichi , Kanbara, Teruhisa , Uchida, Makoto , Sugawara, Yasushi , Matsumoto, Toshihiro , Nakagawa, Kouji
CPC分类号： H01M8/2485 , H01M8/0206 , H01M8/0254 , H01M8/0258 , H01M8/0263 , H01M8/0267 , H01M8/0271 , H01M8/0276 , H01M8/028 , H01M8/0297 , H01M8/241 , H01M8/2415 , H01M2300/0082
摘要： A compact solid polymer electrolyte fuel cell having a simplified structure of a high mechanical strength and an improved gas-sealing property is disclosed. In the solid polymer electrolyte fuel cell of the present invention, gas-tight electrically insulating layers (11,12) are provided on the flanks or the insides of the module of the above-mentioned laminated unit cells, thereby to give a gas-tightness between said electrode and separator (4).
摘要翻译： 公开了一种具有机械强度高，气密性好的简化结构的致密固体高分子电解质燃料电池。 在本发明的固体高分子电解质型燃料电池中，在上述层叠单元电池的组件的侧面或内侧设置气密性电绝缘层，从而在所述电极和分离器之间形成气密性 。
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公开(公告)号：EP0981174A3
公开(公告)日：2000-07-12
申请号：EP99116104.3
申请日：1999-08-17
发明人： Hatoh, Kazuhito , Yasumoto, Eiichi , Nishida, Kazufumi , Gyoten, Hisaaki , Ohara, Hideo , Uchida, Makoto , Sugawara, Yasushi , Kanbara, Teruhisa , Matsumoto, Toshihiro , Nakagawa, Kouji
IPC分类号： H01M8/24
CPC分类号： H01M8/247 , H01M2300/0082
摘要： The present invention provides a polymer electrolyte fuel cell having a small-sized, light-weighted mechanism for fastening a stack of unit cells assembly. The polymer electrolyte fuel cell of the present invention includes a stack of unit cells (30) obtained by laying a plurality of unit cells one upon another; a first end plate (31) disposed on one end of the stack of unit cells; a second end plate (32) arranged on the other end of the stack of unit cells; an auxiliary plate (33;34) disposed at least outside the first end plate; at least one set of restraining means (39), each of which has a band-like shape and restrains a first member located on one end of an assembly, which includes the stack of unit cells, the first and the second end plates, and the auxiliary plate, and a second member located on the other end of the assembly to restrict separation of the first member and the second member from each other; a screw (35) fitted in a threaded hole formed in the auxiliary plate (33;34) in such a manner that an end of the screw comes into contact with the first end plate; and compressive means that generates a repulsive force to compress the stack of unit cells when the screw is fitted in the threaded hole of the auxiliary plate.
摘要翻译： 本发明提供一种聚合物电解质燃料电池，其具有用于紧固一叠单电池组件的小型轻量机构。 本发明的聚合物电解质燃料电池包括通过将多个单元电池相互重叠而获得的单元电池（30）的堆叠; 布置在所述单元电池堆的一端上的第一端板（31） 布置在所述单元电池堆的另一端上的第二端板（32）; 辅助板（33; 34），其至少设置在所述第一端板的外侧; 至少一组限制装置（39），每个限制装置具有带状形状并且限制位于组件的一端上的第一构件，该组件包括单元电池，第一和第二端板的堆叠，以及 所述辅助板以及位于所述组件的另一端上的第二构件，以限制所述第一构件和所述第二构件彼此分离; 螺钉（35），以螺钉的一端与第一端板接触的方式装配在形成在辅助板（33; 34）中的螺纹孔中; 以及当螺钉装配在辅助板的螺纹孔中时产生排斥力以压缩单元电池堆的压缩装置。
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公开(公告)号：EP0961334A2
公开(公告)日：1999-12-01
申请号：EP99109371.7
申请日：1999-06-01
IPC分类号： H01M8/10
CPC分类号： H01M8/1086 , H01M4/926 , H01M8/0273 , H01M8/04119 , H01M8/04223 , H01M8/04291 , H01M8/04302 , H01M8/1004 , H01M8/241 , H01M8/2457 , H01M8/2483 , H01M2300/0082 , Y02P70/56
摘要： A method for activating a polymer electrolyte type fuel cell comprising at least one unit cell which is configured by including a proton conductive polymer electrolyte, an electrode layer having a catalytic activity arranged on the both faces of said polymer electrolyte membrane and a gas-supplying path is disclosed. This method comprises at least one of the step (a) of enhancing the catalytic activity of said electrode and the step (b) of giving a wetting condition to said polymer electrolyte. According to the present invention, it is possible to readily activate the fuel cell and to cause the same to demonstrate a high cell performance.
摘要翻译： 一种激活聚合物电解质型燃料电池的方法，包括至少一个单元电池，其包括质子传导性聚合物电解质，具有设置在所述聚合物电解质膜的两面上的催化活性的电极层和气体供给路径 被披露。 该方法包括增强所述电极的催化活性的步骤（a）和向所述聚合物电解质提供润湿条件的步骤（b）中的至少一个。 根据本发明，可以容易地激活燃料电池并使其能够表现出高的电池性能。
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公开(公告)号：EP0573961B1
公开(公告)日：1997-11-19
申请号：EP93109206.8
申请日：1993-06-08
CPC分类号： H01L35/32 , G01N27/002 , H01L35/16 , H01L35/22 , H01L35/34 , Y10T428/12042
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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
发明人： Yoshida, Akihito , Tsuji, Yoichiro , Yamauchi, Masaki , Hori, Yoshihiro , Uchida, Makoto , Gyoten, Hisaaki , Kanbara, Teruhisa
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。
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9.发明公开
公开(公告)号：EP1079451A3
公开(公告)日：2003-08-06
申请号：EP00118582.6
申请日：2000-08-25
发明人： Sugawara, Yasushi , Gyoten, Hisaaki , Uchida, Makoto , Yasumoto, Eiichi , Kanbara, Teruhisa , Morita, Junji
CPC分类号： H01M4/881 , H01M4/8807 , H01M4/8828 , H01M4/886 , H01M4/926 , H01M8/1004 , H01M2300/0082 , Y02P70/56
摘要： There is provided a polymer electrolyte fuel cell which comprises 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 said electrodes therethrough, wherein at least one of the electrodes comprises a porous catalyst layer formed on the surface of the polymer electrolyte membrane, or formed on the surface of a porous conductive base material, the porous catalyst layer facing the polymer electrolyte membrane.
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公开(公告)号：EP1059686A2
公开(公告)日：2000-12-13
申请号：EP00112150.8
申请日：2000-06-06
发明人： Gyoten, Hisaaki , Uchida, Makoto , Yasumoto, Eiichi , Kusakabe, Hiroki , Sugawara, Yasushi , Hori, Yoshihiro
CPC分类号： H01M8/1004 , H01M8/0202
摘要： A polymer electrolyte fuel cell comprising an anode, a cathode, a polymer electrolyte membrane interposed between the anode and the cathode, an anode-side separator plate having a gas flow path to supply fuel gas to the anode and a cathode-side separator plate having a gas flow path to supply oxidant gas to the cathode. Each of the anode and the cathode comprises a catalyst layer in contact with the polymer electrolyte membrane, an electrode supporting material having gas permeability and electronic conductivity, and a water repellent layer interposed between the catalyst layer and the electrode supporting material. The water repellent layer has through holes through which the catalyst layer and the electrode supporting material are electrically connected.
摘要翻译： 一种聚合物电解质燃料电池，包括阳极，阴极，介于阳极和阴极之间的聚合物电解质膜，具有用于向阳极供应燃料气体的气体流动路径的阳极侧隔板和具有用于向阳极供应燃料气体的阴极侧隔板， 用于向阴极供应氧化剂气体的气体流动路径。 阳极和阴极中的每一个包括与聚合物电解质膜接触的催化剂层，具有透气性和电子导电性的电极支撑材料，以及插入在催化剂层和电极支撑材料之间的防水层。 防水层具有催化剂层和电极支撑材料电连接的通孔。
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