固体高分子形燃料電池のカソード電極における凝縮水排出促進手法の提案(テクニカルフォーラム1 水素の製造・輸送・貯蔵・利用)
詳細
High performance operation of polymer electrolyte fuel cell (PEFC) is limited by water condensation in a cathode gas diffusion layer (GDL) because oxygen transport to reaction sites is blocked. In this study, we observe removal behavior of condensed water in a cathode of PEFC using a long-distance microscope and discuss its characteristics. Furthermore, the structure of cathode electrode for controlling water transport is proposed in order to improve cell performance. It is shown that water removal is promoted by using the cathode GDL with a slit and cell voltage is increased.
