Compositions – Compositions containing a single chemical reactant or plural...
Patent
1977-06-03
1978-10-03
Padgett, Benjamin R.
Compositions
Compositions containing a single chemical reactant or plural...
252510, 429194, 429217, 429218, H01M 400
Patent
active
041183347
ABSTRACT:
A primary electrochemical cell is described in which a novel granular cathode material is utilized. The cathode is formed from about 40 to 99 weight percent of carbon black, at least 1 weight percent of a binder which is inert in the primary electrochemical cell and the remainder thereof is graphite. The cathode material may be formed by mixing the individual components together with a quantity of a suitable liquid to form a uniform slurry. The slurry is then dried at room temperature to remove the liquid. The dried mixture is crumbled into fine particles. The particles are cured at an elevated temperature to stablize the binder. The resulting material when utilized as the cathode material of a primary electrochemical cell provides a porous carbon structure of high surface area in which a network of large channels exists for continual diffusion of electrolytic solution to the carbon cathodic particles throughout the entire volume of the cell cathode regardless of the cell size.
REFERENCES:
patent: 3243753 (1966-03-01), Kohler
patent: 3400020 (1968-09-01), Carpino et al.
patent: 3565694 (1971-02-01), Chireau
patent: 3972735 (1976-08-01), Breault
Fisher Fred
Gluck Irwin
GTE Laboratories Incorporated
Kriegsman Irving M.
Padgett Benjamin R.
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