Microscopic Visualization of State and Behavior of Liquid Water in a Gas Diffusion Layer of PEFC

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概要

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• Water flooding in a cathode gas diffusion layer (GDL) is one of the critical problems of polymer electrolyte fuel cell (PEFC) because liquid water condensed in the porous GDL blocks oxygen transport to the active reaction sites. In this study, we experimentally investigate state of liquid water in a porous electrode of PEFC cathode using an optical diagnostic system and show that it is affected by operating parameters and GDL thickness. Furthermore, microscopic behavior of condensed water inside a cathode GDL of operated PEFC is also predicted by using the GDL with a groove.

• 公益社団法人 電気化学会の論文

著者

• NISHIDA Kosuke

  Department of Mechanical and System Engineering, Kyoto Institute of Technology

関連論文

• C210 EXPERIMENTAL VISUALIZATION AND NUMERICAL SIMULATION OF WATER TRANSPORT IN GAS DIFFUSION LAYER OF PEFC(Fuel Cell-2)
• Study on the Proton Transport Phenomenon in a Polymer Electrolyte Membrane by the MRI Measurement of the ^1H/^2D Replace during Operation Mode
• Microscopic Visualization of State and Behavior of Liquid Water in a Gas Diffusion Layer of PEFC

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