Invention Application
US20070087260A1 Fuel cells with hydrophobic diffusion medium 有权
具有疏水扩散介质的燃料电池

Fuel cells with hydrophobic diffusion medium
Abstract:
Diffusion media for use in PEM fuel cells are provided with silicone coatings. The media are made of a porous electroconductive substrate, a first hydrophobic fluorocarbon polymer coating adhered to the substrate, and a second coating comprising a hydrophobic silicone polymer adhered to the substrate. The substrate is preferably a carbon fiber paper, the hydrophobic fluorocarbon polymer is PTFE or similar polymer, and the silicone is moisture curable.
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