Method of preparing current collectors for electrochemical cells
AssigneeDuracell Inc.
InventorsDavid R. Mihara, Stephen J. Rose, Robert E. Gustar, David V. Adamson, Paul Barton
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Abstract
A process is recited for plating elongated current collectors with indium. The current collectors have particular utility in alkaline electrochemical cells, particularly zinc/manganese dioxide alkaline cells containing "zero-added" mercury. The process of the invention involves electroplating conductive wire with indium and then drawing the plated wire to a lesser diameter. The drawn plated wire may then be cut to the desired lengths, typically in the shape of a nail, for use as current collectors within the alkaline cell.
Claims9
A method of manufacturing a plurality of elongated current collectors for alkaline electrochemical cells having an anode and a cathode comprising the steps of:
- a) electroplating a metal conductive wire with indium to form an indium plated wire, wherein the indium plating on said conductive wire has a thickness of between about 0.1 and 10 micron;
- and
- b) drawing the indium plated wire formed in step a) to reduce the diameter thereof;
- and
- c) inserting the drawn indium plated wire into said anode.
Dependencies are inferred from the claim text.