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Effects of the cathode gas diffusion layer characteristics on the performance of polymer electrolyte fuel cells

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Abstract

Polymer electrolyte fuel cell (PEFC) electrodes were prepared by applying different porous gas diffusion half-layers (GDHLs) onto each face of a carbon cloth support, followed by the deposition of a catalyst layer onto one of these half-layers. The performance of PEFCs in H2/air operation using cathodes with GDHLs presenting different characteristics were compared. The best result was obtained using cathodes with GDHLs having polytetrafluorethylene (PTFE) contents of 30 wt % in the gas side and 15 wt % in the catalyst side. This behaviour was explained in terms of a better water management within the cell.

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Authors and Affiliations

  1. Instituto de Química de São Carlos-USP, CP 780, 13560-970, São Carlos SP, Brazil

    E. Antolini, R.R. Passos & E.A. Ticianelli

Authors
  1. E. Antolini
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  2. R.R. Passos
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  3. E.A. Ticianelli
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Antolini, E., Passos, R. & Ticianelli, E. Effects of the cathode gas diffusion layer characteristics on the performance of polymer electrolyte fuel cells. Journal of Applied Electrochemistry 32, 383–388 (2002). https://doi.org/10.1023/A:1016329820273

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  • DOI: https://doi.org/10.1023/A:1016329820273

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