Method of preparing a cathode current collector for use in an electrochemical cell
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United States of America Patent
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-
Aug 26, 1980
Grant Date -
N/A
app pub date -
Dec 20, 1978
filing date -
Dec 20, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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