Effect of Collector Plate Resistance on Fuel Cell Stack Performance
Open Access
- 1 January 1998
- journal article
- Published by The Electrochemical Society in ECS Proceedings Volumes
- Vol. 1998-27 (1) , 400-406
- https://doi.org/10.1149/199827.0400pv
Abstract
The electrical resistance of the collector plate (both bulk and surface resistance) plays a major role in fuel cell stack performance. Energy Partners (EP) has developed molded graphite composite plates with enhanced electrical conductivity, as an alternative to expensive machined graphite. By optimizing collector plate materials, compounding and molding processes, the resistance of the molded collector/backing layer sandwich was reduced by about 12 mΩcm2. This resulted in an improvement in performance of more than 50 mV per cell at 1 A/cm2 in a 10-cell stack with 300 cm2 active area.Keywords
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