ChemInform Abstract: Low Cost Electrodes for Proton Exchange Membrane Fuel Cells. Performance in Single Cells and Ballard Stacks.
✍ Scribed by T. R. RALPH; G. A. HARDS; J. E. KEATING; S. A. CAMPBELL; D. P. WILKINSON; M. DAVIS; J. ST-PIERRE; M. C. JOHNSON
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 31 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Low Cost Electrodes for Proton Exchange Membrane Fuel Cells. Performance in Single Cells and Ballard Stacks.
-A low cost, high volume electrode manufacturing process based on printing technology is developed. Cost reductions are achieved by lowering the electrode Pt loadings while maintaining high cell performance. It is demonstrated that the performance of membrane electrode assemblies (MEA's) employing printed cathodes (≤ 0.6 mg Pt/cm 2 ) and anodes (≤ 0.25 mg Pt/cm 2 , 0.12 mg Ru/cm 2 ) in Ballard Mark V single-cell and advanced-stack hardware are comparable to current stack MEA's comprising high loading unsupported Pt black electrodes containing 4 mg Pt/cm 2 . The low-cost electrodes show low loss in performance after 3000 h of stack operation and the cell-to-cell reproducibility appears to be excellent. -(RALPH,