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    • 64. 发明授权
    • MEA member and polymer electrolyte fuel cell
    • MEA成员和聚合物电解质燃料电池
    • US08298697B2
    • 2012-10-30
    • US12674843
    • 2009-05-28
    • Shigeyuki UnokiTakashi NakagawaTakashi MorimotoMitsuo Yoshimura
    • Shigeyuki UnokiTakashi NakagawaTakashi MorimotoMitsuo Yoshimura
    • H01M8/04H01M2/10H01M1/08H01M8/10
    • H01M8/008H01M8/0258H01M8/0263H01M8/0273H01M8/0276H01M8/028H01M8/2483H01M2008/1095Y02W30/86
    • In an MEA member constituted by a polymer electrolyte membrane-electrode assembly (MEA) and a frame and in a polymer electrolyte fuel cell including this MEA member, the MEA and the frame can be easily separated from each other without using any special tool. An MEA member 7 includes an MEA 5 and a plate-shaped resin frame 6, and a separating portion for separating the MEA 5 from the frame 6 is formed in the MEA member 7. The MEA 5 includes a polymer electrolyte membrane 2 and a pair of electrodes 3 and 4 respectively disposed on both main surfaces of the polymer electrolyte membrane 2. The frame 6 sandwiches and holds a peripheral portion of main surfaces of the MEA 5 such that the MEA 5 is located inside the frame. The separating portion is a broken-line cutoff line 50 formed on the frame 6 to divide the frame 6 into two or more parts or a partial sandwiching portion 55 located at an inner peripheral portion of the frame 6 to partially sandwich the peripheral portion of the MEA 5.
    • 在由聚合物电解质膜 - 电极组件(MEA)和框架构成的MEA构件中并且在包括该MEA构件的聚合物电解质燃料电池中,MEA和框架可以容易地彼此分离而不使用任何特殊工具。 MEA构件7包括MEA 5和板状树脂框架6,并且在MEA构件7中形成有用于将MEA5与框架6分离的分离部.MEA 5包括聚合物电解质膜2和一对 分别设置在聚合物电解质膜2的两个主表面上的电极3和4.框架6夹持并保持MEA 5的主表面的周边部分,使得MEA 5位于框架内。 分离部分是形成在框架6上以将框架6分成两个或更多个部分的虚线切断线50或位于框架6的内周部分的部分夹持部分55,以部分地夹住框架6的周边部分 MEA 5。
    • 70. 发明申请
    • Fuel cell disassembly method and fuel cell
    • 燃料电池拆卸方法和燃料电池
    • US20070082250A1
    • 2007-04-12
    • US10584342
    • 2004-12-24
    • Hiroshi SuzukiGo TejimaTomoaki NakashimaRyo Akagawa
    • Hiroshi SuzukiGo TejimaTomoaki NakashimaRyo Akagawa
    • H01M8/02H01M2/08B23P19/00
    • H01M8/2457H01M8/008H01M8/0271H01M8/241H01M8/2465H01M8/2483Y02W30/86Y10T29/49815
    • A process of disassembling a fuel cell 10 supplies a fluid to both a fuel gas conduit 6g and an oxidizing gas conduit 7g. Since outlets of the respective gas conduits 6g and 7g are shielded, the internal pressure or in-passage pressure of the respective gas conduits 6g and 7g gradually rises and eventually exceeds a specific in-passage pressure level for power generation of the fuel cell 10. The high in-passage pressure expands a gas diffusion electrode 4b of a membrane electrode assembly (MEA) 2 and a separator 6, which define the fuel gas conduit 6g, in opposite directions to make a clearance between the gas diffusion electrode 4b and the separator 6. Similarly the high in-passage pressure expands a gas diffusion electrode 5b of the MEA 2 and a separator 7, which define the oxidizing gas conduit 7g, in opposite directions to make a clearance between the gas diffusion electrode 5b and the separator 7. The supplied fluid then flows out through these clearances into seals between the separators 6 and 7 and the MEA 2. These flows raise the in-passage pressure and release the seals.
    • 燃料电池10的拆卸处理向燃料气体导管6g和氧化气体导管7g供给流体。 由于各个气体导管6g和7g的出口被屏蔽,所以各个气体导管6g和7g的内部压力或通道内压力逐渐上升,最终超过了特定的通道内压力水平,用于发电 燃料电池10。 高通道压力使膜电极组件(MEA)2的气体扩散电极4b和限定燃料气体导管6g的隔板6沿相反方向膨胀,以在气体扩散电极4b 和分离器6。 类似地,高通道压力使MEA2的气体扩散电极5b和限定氧化气体导管7g的隔板7以相反的方向膨胀,以在气体扩散电极5b和隔板7之间形成间隙 。 然后,所供应的流体通过这些间隙流出到分离器6和7与MEA 2之间的密封件中。 这些流动提高通道内压力并释放密封。