During operation of Polymer Electrolyte Membrane Fuel Cells (PEMFCs), electro-chemical reactions generate water, which exists as a liquid because of the PEFMC’s low operating temperature. The water remains in the PEFMC after it is turned off. During the winter this water can freeze; associated increase in its volume deforms the gas diffusion layer (GDL). The deformed GDL reduces the cell’s power output and durability. In this investigation, X-ray microscopy was used demonstrate that water freezing changed the geometry of GDL by water freezing.
- Advanced Energy Systems Division
Visualization of GDL Deformation by Freezing of Water Using X-Ray Radiography
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Kim, J, Je, J, Kaviany, M, Son, SY, & Kim, MH. "Visualization of GDL Deformation by Freezing of Water Using X-Ray Radiography." Proceedings of the ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 1. Brooklyn, New York, USA. June 14–16, 2010. pp. 735-737. ASME. https://doi.org/10.1115/FuelCell2010-33281
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