Method of producing electric cell anode using powdery active mat

Details Method of producing electric cell anode using powdery active mat Method of producing electric cell anode using powdery active mat

1985-06-12

1987-12-01

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Forming electrical articles by shaping electroconductive...

Conductive carbon containing

264104, 429217, H01M 426

Patent

active

047103353

ABSTRACT:
Using a positive active material in powder form such as a metal salt or graphite fluoride, an anode for use in an electric cell, and particularly suitable for use in an organic electrolyte cell, is produced by the steps of dispersing the active material, and a conductive material such as carbon powder where necessary, in a solution of an organic polymer used as binder in a suitable liquid, mixing the dispersion with another liquid in which the polymer is substantially insoluble so as to cause precipitation of the polymer in a state intimately mixed with the active material and the conductive material, separating the solid phase mixture from the liquid phase and drying it, and press-shaping the dried mixture into an anode body of a desired shape. By mixing the binder with the active material in this manner, it is possible to obtain an anode body sufficient in mechanical strength and high in electrochemical activity by using only a very small amount of binder.

REFERENCES:
patent: 2977351 (1961-03-01), Wiley
patent: 3271195 (1966-09-01), Berchielli
patent: 4216045 (1980-08-01), Mirioka

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