Fiber reinforced cathode for electrochemical cell

Details Fiber reinforced cathode for electrochemical cell Fiber reinforced cathode for electrochemical cell

1979-11-13

1982-10-05

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Forming electrical articles by shaping electroconductive...

Conductive carbon containing

264127, C04B 3552

Patent

active

043527680

ABSTRACT:
An improved preformed cathode is described for use in a primary electrochemical cell. The novel cathode of the present invention is a self-supporting member having a configuration which is determined by the spatial limitations of the particular primary electrochemical cell in which the cathode is to be utilized. The cathode is formed from about 65 to 94 weight percent of carbon black, at least 1 weight percent of a mechanical binder which is inert in the primary electrochemical cell, 1 to 10 weight percent of a fibrous material such as carbon, glass, ceramic fluoropolymer, and/or metallic fibers, and any remainder thereof is graphite powder. The preformed cathode is formed by mixing the individual components together with a quantity of a suitable liquid to form a uniform mixture which is sheeted to a self-supporting structure of the desired thickness. Thereafter, the preformed cathode is dried, cured for a period of time sufficient to remove substantially all of the liquid and to stabilize the mechanical binder, and cut into discs for assembly into cells.

REFERENCES:
patent: 2799053 (1957-07-01), Gartland
patent: 3658976 (1972-04-01), Slade
patent: 3838188 (1974-09-01), Farrell
patent: 4102960 (1978-07-01), Borkowski
patent: 4127634 (1978-11-01), Joo
patent: 4161063 (1979-07-01), Goebel et al.

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