| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell stack equipped with a transparent flow channel and its bipolar plate structure. <P>SOLUTION: In the fuel cell stack equipped with a transparent flow channel and the bipolar plate structure, the fuel cell stack is provided with a membrane-electrode assembly and bipolar plates. The membrane-electrode assembly is placed between two bipolar plates, and each bipolar plate includes a transparent manifold and a collecting plate built in on a side face of the transparent manifold, so that electric energy generated by the membrane-electrode assembly can be conducted with the use of the collecting plates. Since a product water state inside the flow channel in the fuel cell stack can be immediately observed from outside it thanks to the transparent manifold, whether a blocked state occurs or not in the flow channel is monitored at all times, whereby, the fuel cell stack is allowed to maintain desired power generation efficiency. <P>COPYRIGHT: (C)2011,JPO&INPIT |
