固体高分子形燃料電池の電流分布測定

概要

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The current density distribution along the flow channel of a proton exchange membrane fuel cell (PEMFC) was investigated under CO poisoning using a transparent cell modified with finely distributed current collectors. Significant movement of the current density peak towards the cathode exit was observed as the CO concentration in the anode gas increased, which clearly indicates that the current density is significantly reduced at the cathode inlet area and increased at the cathode exit with counter-flow configuration. Comparison of the experimental and calculated results revealed that movement of the current density peak under high CO concentration was related to the reduction of the exchange current density along the anode flow channel, which was caused by the significant loss of CO coverage on the anode catalyst surface.
福井工業大学の論文