| abstract |
Bipolar plates (516) for electrochemical cells, particularly low-temperature fuelncells, with surface modification to enhance through-plate conductivity, processes for improvingnthe surface properties of those bipolar plates, and fuel cell assemblies made with such plates.nGraphite-polymer composite bipolar plates with high bulk conductivity are subjected to annabrasive surface treatment to improve the surface contact as well as the reactant transfer to thenadjacent gas diffusion electrodes. |