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    Starting up and shutting down a fuel cell
    1.
    发明申请
    Starting up and shutting down a fuel cell 审中-公开
    启动并关闭燃料电池

    公开(公告)号：US20070154742A1

    公开(公告)日：2007-07-05

    申请号：US11321885

    申请日：2005-12-29

    申请人： Hao Tang ,  Zhigang Qi ,  Manikandan Ramani ,  Kenneth Rush ,  Lam Wong ,  Noel Miklas

    发明人： Hao Tang ,  Zhigang Qi ,  Manikandan Ramani ,  Kenneth Rush ,  Lam Wong ,  Noel Miklas

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04303 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/0612 ,  H01M8/241 ,  H01M2008/1095

    摘要： A technique to shut down a fuel cell stack includes reducing an oxidant flow through the fuel cell stack, and decreasing the current of the fuel cell stack while maintaining an approximately constant rate of fuel flow to the fuel cell stack. Once the power output of the fuel cell stack reaches zero due to the depletion of oxygen at the cathode, the fuel flow to the fuel cell stack anode is then halted. Then, the stack is either isolated from the reactant streams, or the cathode is briefly purged by the fuel before the stack is isolated from the reactant streams, or both the anode and the cathode are purged in sequence by air before the stack is isolated from the reactant streams.

    摘要翻译： 关闭燃料电池堆的技术包括减少通过燃料电池堆的氧化剂流，以及降低燃料电池堆的电流，同时保持大致恒定的燃料流量到燃料电池堆。 一旦燃料电池堆的功率输出由于阴极处的氧气的耗尽而达到零，则停止向燃料电池堆阳极的燃料流。 然后，将堆叠从反应物流中分离出来，或者在堆叠与反应物流分离之前，将燃料短暂地吹扫出来，或者在将堆叠与反应物分离之前，阳极和阴极依次被空气吹扫 反应物流。