CARBON ELECTRODE MATERIAL Russian patent published in 2013 - IPC H01M4/86 H01M8/02 

FIELD: electrical engineering.

SUBSTANCE: carbon electrode material, permeable for vapours and gases in the cross-wise direction, contains vertical through channels and represents a carbon-carbon composite material based on a technical carbon filler with binding phenolic-formaldehyde resin, their ratio equal to 1:1.3, with vertical through cylindrical channels with diameter equal to 8-52 mcm, 150-250 channels per 1 mm² of the surface; the diameter of natural pores between the filler particles is 1.1-1.6 mcm, porosity - 28-72%, specific volumetric electric resistance - 4.7-6.9 mOhm·cm, compression strength - 48-155 MPa.

EFFECT: increased density of the fuel cell working current due to increase of current collected from the carbon electrode and increase of the area of the electrode contact with the proton exchange membrane combined with simultaneous increase of the electrode strength and porosity.

5 dwg, 1 tbl, 6 ex