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Effect of Various Hydrophobic Concentrations and Base Weights of Gas Diffusion Layer for Proton Exchange Membrane Fuel Cells

✍ Scribed by J.-H. Lin; T.-H. Ko; W.-S. Kuo; Y.-H. Lin; C.-C. Huang; W.-C. Chen

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
257 KB
Volume
10
Category
Article
ISSN
1615-6846

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✦ Synopsis

Abstract

This study investigates the gas permeability, conductivity and performance of two types of gas diffusion layer (90 g m^–2^ and 190 g m^–2^) with various hydrophobic treatments. The performance is measured using a single proton exchange membrane fuel cell (PEMFC) with an active area of 25 cm^2^. The results prove that 90 g m^–2^ carbon paper has the best current density in 5% hydrophobic concentration. The polarisation curves of fuel cell were plotted by similar operating conditions with different micro‐porous layers (MPLs) on carbon papers surface. These results provide a wide choice of hydrophobic agents. These results concerning the balance between base weights and performance provide important information for the fabrication of stacks and support for industrial applications.

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