Preparing Gas-Diffusion Layers of PEMFCs with a Dry Deposition Technique

To improve the ease of production and reproducibility, a novel approach was developed for preparing gas-diffusion layers (GDL) of proton-exchange membrane fuel cells (PEMFCs). In this approach, the GDL was prepared by dry deposition of a mixture of carbon black and polytetrafluoroethylene powders on...

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Bibliographic Details
Published in:Electrochemical and solid-state letters 2005, Vol.8 (3), p.A152-A155
Main Authors: Yu, Jingrong, Yoshikawa, Yusuke, Matsuura, Toyoaki, Islam, Md Nazrul, Hori, Michio
Format: Article
Language:English
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Summary:To improve the ease of production and reproducibility, a novel approach was developed for preparing gas-diffusion layers (GDL) of proton-exchange membrane fuel cells (PEMFCs). In this approach, the GDL was prepared by dry deposition of a mixture of carbon black and polytetrafluoroethylene powders onto water-proofed carbon paper in combination with a subsequent rolling process. Three kinds of carbon black, including Ketjenblack EC-600JD, Vulcan XC-72, and Denka, were investigated. Furthermore, the reproducibility of the GDL with Vulcan XC-72 was also tested. The results indicate that this dry-deposition technique is feasible for mass production applications with simple operation, solvent-free coating and excellent repeatability.
ISSN:1099-0062
DOI:10.1149/1.1854119