Study of Cathode Gas Diffusion Architecture for Improved Oxygen Transport in Hydroxide Exchange Membrane Fuel Cells
| Author(s) | Weiss, Catherine M. | |
| Author(s) | Setzler, Brian P. | |
| Author(s) | Yan, Yushan | |
| Date Accessioned | 2022-05-09T18:12:38Z | |
| Date Available | 2022-05-09T18:12:38Z | |
| Publication Date | 2022-05-04 | |
| Description | This article was originally published in Journal of The Electrochemical Society. The version of record is available at: https://doi.org/10.1149/1945-7111/ac6446 | en_US |
| Abstract | The high pH environment in hydroxide exchange membrane fuel cells (HEMFCs) has the potential to reach lower costs than the current proton exchange membrane fuel cells (PEMFCs), the incumbent technology. A significant difference between HEMFCs and PEMFCs is the location of water production within the cell. In PEMFCs, the water is produced on the cathode, limiting oxygen transport. In HEMFCs, the water is produced on the anode where the fuel is pure hydrogen. This allows the cathode to be optimized for oxygen transport without the presence of excess liquid water. Limiting current analysis, a technique previously used in PEMFCs, is adopted in HEMFCs to evaluate the oxygen mass transport resistances for different sections of the cathode. Through elimination of the microporous layer (MPL), gas diffusion layer (GDL), and traditional flow field and using porous nickel foam for gas distribution, the transport resistance at an operating condition of 150 kPa(g) and with the cell temperature at 80 °C was decreased from 112 s m−1 to 48 s m−1, effectively halved. The optimal configuration for performance was found with Ni foam and a GDL, eliminating the MPL and traditional flow field, which vastly improved oxygen transport while maintaining adequate electrical contact with the cathode catalyst layer. | en_US |
| Sponsor | The information, data, or work presented herein was funded in part by the Advanced Research Projects Agency-Energy (ARPA-E), U. S. Department of Energy, under Award Number DE-AR0001034. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. The authors would like to acknowledge Shimshon Gottesfeld as the Principal Investigator of the project. | en_US |
| Citation | Weiss, Catherine M., Brian P. Setzler, and Yushan Yan. “Study of Cathode Gas Diffusion Architecture for Improved Oxygen Transport in Hydroxide Exchange Membrane Fuel Cells.” Journal of The Electrochemical Society 169, no. 5 (May 2022): 054505. https://doi.org/10.1149/1945-7111/ac6446. | en_US |
| ISSN | 1945-7111 | |
| URL | https://udspace.udel.edu/handle/19716/30854 | |
| Language | en_US | en_US |
| Publisher | Journal of The Electrochemical Society | en_US |
| Keywords | affordable and clean energy | |
| Title | Study of Cathode Gas Diffusion Architecture for Improved Oxygen Transport in Hydroxide Exchange Membrane Fuel Cells | en_US |
| Type | Article | en_US |
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