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    • 9. 发明申请
    • Fuel cell stack including bypass
    • 燃料电池堆包括旁路
    • US20070042258A1
    • 2007-02-22
    • US11207513
    • 2005-08-19
    • Charles MackintoshSeth ValentineSitima FowlerSteven Piedmont
    • Charles MackintoshSeth ValentineSitima FowlerSteven Piedmont
    • H01M8/24H01M8/10H01M8/04
    • H01M8/04492H01M8/04186H01M8/1007H01M8/2415H01M8/2484
    • A fuel cell stack including a bypass is provided. The fuel cell stack includes a plurality of electricity generating cells in the known manner. A bypass is included for reducing the water entering the electricity generating cells of the fuel cell stack. The bypass may comprise at least one bypass cell disposed adjacent the first electricity generating cell in the stack. The bypass cell comprises a pair of separator plates defining an anode side and a cathode side. The bypass cell includes a conductive spacer comprising gas diffusion media disposed between the pair of separator plates. The bypass cell preferably blocks the cathode port on the separator plate. In this manner, the cell is inactive and does not produce electricity. The anode port of the cell remains open and an anode feed flows through the bypass to reduce water provided to the first electricity-generating cell. Alternatively or additionally, the cathode port remains open. Further the bypass may be placed before the cell stack itself.
    • 提供了包括旁路的燃料电池堆。 燃料电池堆以已知的方式包括多个发电单元。 包括旁路以减少进入燃料电池堆的发电单元的水。 旁路可以包括与堆叠中的第一发电单元相邻设置的至少一个旁路单元。 旁路电池包括限定阳极侧和阴极侧的一对隔板。 旁路电池包括导电间隔件,其包括设置在该对隔板之间的气体扩散介质。 旁路电池优选地阻挡隔板上的阴极端口。 以这种方式,电池是不活动的并且不产生电力。 电池的阳极端口保持打开,并且阳极进料流过旁路以减少提供给第一发电池的水。 或者或另外,阴极端口保持打开。 此外,旁路可以放置在电池堆本身之前。