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Characterisation and Optimisation of Low Cost Activated Carbon Fabric as a Substrate Layer for PEMFC Electrodes

[+] Author Affiliations
N. Rajalakshmi, G. Velayutham, K. Ramya, C. K. Subramaniyam, K. S. Dhathathreyan

Centre for Fuel Cell Technology, Chennai, India

Paper No. FUELCELL2005-74182, pp. 169-173; 5 pages
doi:10.1115/FUELCELL2005-74182
From:
  • ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology
  • 3rd International Conference on Fuel Cell Science, Engineering and Technology
  • Ypsilanti, Michigan, USA, May 23–25, 2005
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-3764-5 | eISBN: 0-7918-3757-2
  • Copyright © 2005 by ASME

abstract

In proton exchange membrane fuel cells (PEMFC), gas diffusion layers (GDL) play a critical role of supplying the oxidant and the fuel to the cathode and anode besides facilitating transfer of the electrons generated to the current collectors. In the present paper, a new low cost activated carbon fabric of high porous nature has been investigated for its suitability as substrate layer in PEMFC electrodes alternative to the carbon paper. The critical parameters like permeability, porosity, fuel cell performance are compared with standard substrate layer after optimizing the electrode structure. Economic analysis for a 1 kW power system reveals that there exists a considerable cost reduction by about 50%, with reference to the substrate layer.

Copyright © 2005 by ASME

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