Process of making a lead wire of hard carbon

Details Process of making a lead wire of hard carbon Process of making a lead wire of hard carbon

1990-08-06

1992-05-05

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

In specific atmosphere

264102, 2642106, 2642112, 423448, 423449, B29C 4700, C01B 3102

Patent

active

051105160

ABSTRACT:
A process for producing a lead wire of hard carbon for supplying power to a fuel battery, including the steps of mixing carbon powder and monomer or precondensate of furan resin with binder containing as a main ingredient chlorine-containing vinyl resin which is carbonized after calcining, uniformly mixing and dispersing the mixture composition, applying high shearing force to the mixture composition, extrusion molding the composition in a rod shape, insolubilizing and infusibilizing the molding, and calcining the molding in an inert gas atmosphere, thereby obtaining the lead wire of hard carbon for supplying power to the fuel battery. Thus, the process can industrially simply and inexpensively produce lead wires of hard carbon for supplying power with small electric resistance to the fuel battery which does not consume electricity generated as Joule heat, and has excellent corrosion resistance against electrolytes of high temperature and high acid concentration.

REFERENCES:
patent: 3852429 (1974-12-01), Murayama et al.
patent: 3960768 (1976-06-01), Ripperger et al.
patent: 4293533 (1981-10-01), Asano et al.
patent: 4582632 (1986-04-01), Rokujo et al.
English-Language Translation of Japanese Reference (KOKAI) 59-164,674.

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