多孔性調湿リブを有する固体高分子形燃料電池の特性

抄録

Water management is very important in the development of the PEFC. The purpose of this paper is to present a new method for utilizing the generated water to humidify the polymer membrane actively. We have developed a humidity control porous rib system. By changing gas flow direction in cathode side, the porous rib changes its function of both moisture absorption and dehumidification, according to the local humidity condition. In this study, experimental and numerical examinations were carried out to understand the effect of the humidity control porous rib on the water behavior and the cell performance of the PEFC. It is confirmed that the humidity control porous rib system can control water behavior and improve the cell performance.