Electrochemical cell with improved cathode current collector and

Details Electrochemical cell with improved cathode current collector and Electrochemical cell with improved cathode current collector and

1980-01-30

1982-10-05

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

429105, 429196, H01M 614

Patent

active

043528660

ABSTRACT:
Disclosed is a primary electrochemical cell having an improved cathode current collector and a method for making the current collector. The cell comprises an oxidizable active anode material; and electrolytic solution comprising a reducible soluble cathode and an electrolyte solute dissolved therein; and a cathode current collector comprising a layer of finely-divided catalyst for reducing the solvent, bonded to an inert, electrically-conductive substrate. Preferably, a bonding layer, comprising a finely-divided polymer and a minor amount of conductive material, bonds the catalyst layer to the substrate. The bonding and catalyst layers preferably can be formed by sequentially applying respective dispersions thereof to the substrate, drying, and heating to bond the materials. Soluble cathode cells employing cathode current collectors of the type described have exceptionally rapid discharge properties.

REFERENCES:
patent: 3444004 (1969-05-01), Smith
patent: 3567515 (1971-03-01), Maricle et al.
patent: 3922174 (1975-11-01), Heller
patent: 4091176 (1978-05-01), Alfenaar
patent: 4121020 (1978-10-01), Epstein et al.

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