直接加水による電解質膜の含水促進と固体高分子形燃料電池の性能向上(マイクロ・小型分散・発電プラントにおける燃料電池最新技術,マイクロ・小型分散・発電プラントにおける燃料電池最新技術)

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In this article, we examined an effect of liquid water supply to a polymer electrolyte fuel cell membrane on membrane hydration and cell performance, because the membrane is to be swelled by means of direct contact with liquid water and thus improvement of cell performance can be expected. We assembled a fuel cell with liquid water feed for magnetic resonance imaging (MRI) measurement and measured water content distribution in the membrane under fuel cell operation with liquid water supply. It was revealed that supplying liquid water to the membrane improved cell performance. MRI result clearly shows that liquid water supply enhanced membrane hydration, resulting in reduction of electric resistance of the membrane.
一般社団法人日本機械学会の論文
2004-09-04