Process for producing electrode substrate for fuel cells

Details Process for producing electrode substrate for fuel cells Process for producing electrode substrate for fuel cells

H - Electricity

01

M

18/1

H01M 4/96 (2006.01)

Patent

CA 1244611

TITLE OF THE INVENTION: PROCESS FOR PRODUCING ELECTRODE SUBSTRATE FOR FUEL CELLS ABSTRACT OF THE DISCLOSURE: A process is described for producing a carbonaceous electrode substrate for use in fuel cells, comprising two layers of a porous carbonaceous layer and a compact carbonaceous layer or three layers of two porous carbonaceous layers and a compact carbonaceous layer disposed between the two porous carbonaceous layers, wherein the porous carbonaceous layer(s) has elongated holes extending trans- versely in a generally central region of thickness thereof. The holes are formed by inserting a high polymeric substance in the configuration of the desired holes when forming the substrate and calcining the hardened substrate to remove the polymeric substance and leave the holes.

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