Carbonaceous coatings on flexible graphite materials

Details Carbonaceous coatings on flexible graphite materials Carbonaceous coatings on flexible graphite materials

H - Electricity

01

M

H01M 8/02 (2006.01) B32B 3/10 (2006.01) B32B 5/30 (2006.01)

Patent

CA 2511020

A flexible graphite sheet (34, 30) having a hydrophobic binder and a carbonaceous material adhered thereto is disclosed. The flexible graphite sheet (34, 30) may be used as an electrode or a gas diffusion layer in a fuel cell (10), such as a proton exchange membrane (12) fuel cell (10). Electrochemical systems having such a flexible graphite sheet (34, 30) and methods for making such flexible graphite sheets (34, 30) are also disclosed.

L'invention concerne une feuille de graphite flexible comprenant un liant hydrophobe et un matériau de carbone adhérant à celle-ci. La feuille de graphite flexible peut être utilisée comme électrode ou couche de diffusion de gaz dans une pile à combustible, par exemple une pile à combustible de type membrane à échange de protons. L'invention concerne également des systèmes électrochimiques comprenant une feuille de graphite flexible de ce type, ainsi que des procédés de fabrication de ces feuilles de graphite flexibles.

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