Investigation of Dynamic Water Cluster and Droplet Interactions in Polymer Electrolyte Fuel Cells using Operando X-ray Tomographic Microscopy

• Published in: Journal of the Electrochemical Society Vol. 171; no. 9; pp. 94505 - 94513
• Main Authors: Dörenkamp, Tim, Sabharwal, Mayank, Marone, Federica, Büchi, Felix N., Schmidt, Thomas J., Eller, Jens
• Format: Journal Article
• Language: English
• Published: IOP Publishing 02.09.2024
• Subjects: fuel cells - PEM; gas diffusion layer; water transport; X-ray tomography

Efficient removal of the electrochemically produced water from the gas diffusion layer (GDL) in polymer electrolyte fuel cells is crucial for reducing mass transport losses and improving the efficiency at high current densities. Understanding the relationship between the water percolation through th...