The present invention is directed to a diffusion substrate assembly that is suitable for use in fuel cells. The diffusion substrate exhibits low flow resistance for active fuel agents and electrochemical reaction products, high electrical cross plane conductance and a good mechanical integrity. In one...http://www.google.fr/patents/US6689439?utm_source=gb-gplus-shareBrevet US6689439 - Micro-stud diffusion substrate for use in fuel cells
Micro-stud diffusion substrate for use in fuel cells
