ACRYLIC FIBER BONDING CARBON FIBER PAPER AS GAS DIFFUSION MEDIUM FOR FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a new, improved gas diffusion medium for a fuel cell such as a proton exchange membrane type fuel cell.

SOLUTION: The gas diffusion medium contains carbonizable acrylic pulp fibers in place of conventional phenol resin as a binder material, and the acrylic fibers are mixed with carbon fiber dispersion in a paper making process. A mat is cured and carbonized to manufacture the gas diffusion medium. A phenol resin impregnation process usually accompanied by a customary gas diffusion medium manufacturing process can be omitted.

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