Patent ID: 7338730
Filing Date: 2008-03-04
Classification: B82Y,H01M,Y02E,Y02P

Abstract:
1. A fuel cell separator, an assembly for a cell, an electrode or a heat releasing plate, produced by a process comprising shaping an uncured sheet using an extruder, roller or calendar, cutting or punching the uncured sheet, supplying the sheet to a single-side or double-side grooved die and heat curing with a compression molding machine, wherein the sheet comprises a conductive curable resin comprising (A) a curable resin composition comprising (A 1 ) 2-80 wt % of an elastomer with a Mooney viscosity (ML 1+4 (100° C.)) of (A 2 ) 25 or greater (A 2 ) 98-20 wt % of a radical reactive resin, and (B) a carbon material, with a weight ratio of component (A) to component (B) of 70-5:30-95, and wherein said carbon material is selected from the group consisting of graphite powder, artificial graphite powder, natural graphite powder, expanded graphite powder, carbon fiber, vapor-grown carbon fiber with a fiber diameter of 0.05-10 μm and a length of 1-500 μm, carbon nanotubes with a diameter of 0.05-100 nm and a length of 0.01-10 μm, or a mixture thereof.