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AssigneeNisshinbo Industries, Inc.
InventorsKazuo Saito, Atsushi Hagiwara, Takashi Maki, Atsushi Miyazawa
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A carbonaceous composite material molded from a carbonaceous composite compound composed mainly of graphite, a thermosetting resin, and a fibrous base material, wherein molding is carried out in such a way that said fibrous base material is oriented in said carbonaceous composite material; a process for producing said carbonaceous composite material; a fuel cell separator having said carbonaceous composite material as a component; and a polymer electrolyte fuel cell. The carbonaceous composite material can be produced by injection molding, transfer molding or extrusion molding without difficulties encountered in the past. It has high strength, with a minimum amount of warpage. It contributes to productivity.
A fuel cell separator having grooves for gas supply and discharge on one side or both sides thereof which is formed from a carbonaceous composite material molded from a carbonaceous composite compound composed mainly of graphite, a thermosetting resin, and a fibrous base material, wherein molding is carried out in such a way that said fibrous base material is oriented in said carbonaceous composite material, said fuel cell separator being characterized by a flexural strength, of 40-100 MPa, a flexural modulus of 20-60 GPa, and an amount of warpage no larger than 0.5 mm, which are measured according to JIS K6911.
Dependencies are inferred from the claim text.