Journal of Smart Processing
Online ISSN : 2187-1337
Print ISSN : 2186-702X
ISSN-L : 2186-702X
Water Measurement Techniques for Elucidating Internal Phenomena of Polymer Electrolyte Fuel Cells
Kosuke NISHIDA
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2023 Volume 12 Issue 3 Pages 123-130

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Abstract
  To alleviate water flooding and membrane dryout in polymer electrolyte fuel cells (PEFCs), it is necessary to elucidate mass transports and electrochemical reactions occurring in membrane electrode assemblies (MEAs) by various measurements and simulations and to design the optimum fuel cell structure for better water management. Our research group has developed several measurement techniques for investigating the liquid water behavior and quantifying the water vapor concentration within the flow channel and porous electrode of an operating PEFC based on cross sectional visualization, X-ray radiography and laser absorption spectroscopy. The details of their measurement methods and utilization examples were explained in this article.
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© 2023 Smart Processing Society for Materials, Environment & Energy
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