Statistical Simulation of the Performance and Degradation of a PEMFC Membrane Electrode Assembly
A 1-D MEA Performance model was developed that considered transport of liquid water, agglomerate catalyst structure, and the statistical variation of the MEA characteristic parameters. The model was validated against a low surface area carbon supported catalyst across various platinum loadings and operational conditions. The statistical variation was found to play a significant role in creating noise in the validation data and that there was a coupling effect between movement in material properties with liquid water transport. Further, in studying the low platinum loaded catalyst layers it was found that liquid water played a significant role in the increasing the overall transport losses. The model was then further applied to study platinum dissolution via potential cycling accelerated stress tests, in which the platinum was found to dissolve nearest the membrane effectively resulting in reaction distribution shifts within the layer.
- Research Organization:
- Ballard Power Systems, Burnaby, BC
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- EE0000466
- OSTI ID:
- 1084694
- Report Number(s):
- DOE/E0000466-9
- Journal Information:
- ECS Transactions, Vol. 50, Issue 2; Conference: 222nd ECS Meeting, Honolulu, Hawai’I, October 7 -12, 2012
- Country of Publication:
- United States
- Language:
- English
Similar Records
Final Project Report: Development of Micro-Structural Mitigation Strategies for PEM Fuel Cells: Morphological Simulations and Experimental Approaches
Developing novel electrodes with ultralow catalyst loading for high-efficiency hydrogen production in proton exchange membrane electrolyzer cells