Dry molded cathode collector for liquid cathode systems

Details Dry molded cathode collector for liquid cathode systems Dry molded cathode collector for liquid cathode systems

1987-07-16

1988-12-13

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Forming electrical articles by shaping electroconductive...

Conductive carbon containing

429217, H01M 400

Patent

active

047909692

ABSTRACT:
Disclosed is a method of forming porous carbon cathode collectors for electrochemical cells by mixing carbon black with binder and liquid to form a dough, drying it at an elevated temperature, compacting the dried mix at an elevated temperature, milling it to a particle size greater than 0.05 mm and preferably 0.1 to 0.3 mm, and molding the dry milled mix, preferably by auger feeding, to form a collector having a pore size at least 50% by volume being 10 microns or larger and most preferably in the range of 10 to 90 microns.

REFERENCES:
patent: 2799053 (1957-07-01), Gartland
patent: 3985573 (1976-10-01), Johnson et al.
patent: 4020248 (1977-04-01), Goebel
patent: 4118334 (1978-10-01), Goebel
patent: 4303604 (1981-12-01), Gilman
patent: 4307052 (1981-12-01), Gannon et al.
patent: 4536359 (1985-08-01), Tanaka
V. Danel et al., J. Elec. Chem Soc., vol. 83-2, Oct. 1983, Abstract 43.

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