The Importance of Water Content (λ) on Electroosmotic Drag and Degradation in PEMFCs
The origin of the symbol lamda λ representing the water content in ionomer membranes used in fuel-cell applications, is presented. The importance of water content on transport properties in membranes is discussed. In particular water drag, or electroosmotic drag, is treated. Finally, the role of wat...
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| Format: | Tagungsbericht |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The origin of the symbol lamda λ representing the water content in ionomer membranes used in fuel-cell applications, is presented. The importance of water content on transport properties in membranes is discussed. In particular water drag, or electroosmotic drag, is treated. Finally, the role of water in chemical degradation of fuel-cell membranes and platinum dissolution is reviewed. |
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| ISSN: | 1938-5862 1938-6737 |
| DOI: | 10.1149/1.3635545 |