公开(公告)号：US06682839B2

公开(公告)日：2004-01-27

申请号：US09848531

申请日：2001-05-03

申请人： David P. Wilkinson ,  Bien Hung Chiem ,  Joy A. Roberts ,  Jean St-Pierre ,  Jürgen Stumper ,  Joerg Zimmermann

发明人： David P. Wilkinson ,  Bien Hung Chiem ,  Joy A. Roberts ,  Jean St-Pierre ,  Jürgen Stumper ,  Joerg Zimmermann

IPC分类号： H01M804

CPC分类号： H01M8/04029 ,  H01M8/0202 ,  H01M8/04097 ,  H01M8/04119 ,  H01M8/04156 ,  H01M2300/0082

摘要： A method of controlling the temperature within an electrochemical fuel cell stack comprises introducing a reactant fluid stream comprising both a heat transfer liquid and a reactant into a fuel cell assembly such that the reactant fluid stream contacts an electrode. The heat transfer liquid is other than water. Preferably, the method further comprises recirculating heat transfer liquid which is in the reactant exhaust stream, typically via a heat exchanger, and re-introducing it into the fuel cell assembly in the reactant fluid stream. The recirculated heat transfer liquid may be directed to a reservoir which in turn supplies heat transfer liquid to the reactant fluid stream as it is needed. In a further embodiment, the method may comprise using the heat transfer liquid to heat a fuel cell stack to a desired operating temperature rather than cooling the stack.

摘要翻译： 控制电化学燃料电池堆内的温度的方法包括将包含传热液体和反应物的反应物流体流引入燃料电池组件，使得反应物流体流接触电极。 传热液体不是水。 优选地，该方法还包括通常通过热交换器再循环在反应物排气流中的传热液体，并将其重新引入到反应物流体流中的燃料电池组件中。 再循环的传热液体可以被引导到储存器，储存器又根据需要将热传递液体提供给反应物流体流。 在另一个实施例中，该方法可以包括使用传热液体将燃料电池堆加热到期望的操作温度，而不是冷却堆叠。