Patent ID: 8802330

Claim:
A method of manufacturing a carbon reinforced separator for a fuel cell, the composite separator consisting of a polymer resin as a matrix and reinforced with a carbon material, the method comprising: performing a post-treatment to expose the carbon material from the surface of the carbon reinforced composite separator while removing residual resin of the polymer resin used as the matrix from the surface of the separator other than the carbon material by performing plasma etching on the surface of the separator by plasma equipment, thereby reducing the electrical contact resistance of the composite separator, wherein the plasma etching is performed after stacking a resin for a gasket on the surface of the carbon reinforced composite separator along a predetermined gasket pattern, wherein a gasket for maintaining airtightness is to be positioned, such that the resin for the gasket is cured by plasma energy together with the removal of the residual resin during the plasma etching.