OS5-7 電気化学的水素ポンプの昇圧・分離特性(OS5 水素・燃料電池,分散と集中の共存)

概要

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Fuel cells (FC) can hardly react a hundred percent of fuel, because the cell potential becomes zero if all of the fuel is consumed at FC. Therefore a small amount of fuel is released from FC, even when pure H_2 gas is used as fuel. If the space, where the exhaust H_2 is released, is closed up such as the space of deep underground or undersea, the released amount of H_2 may be restricted to an allowable level. The depleted H_2 can be recovered by the hydrogen pump, which is proposed here. When we supply electricity to the polymer electrolyte by an external power source, H_2 can easily be separated and pumped up from anode to cathode according to the principle of "concentration cell". In this study we have preliminarily tested the HSP, and our experimental results show that the HSP can work as a good separation and compression pump of exhausted hydrogen from FC.
2006-06-28