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AssigneeDuracell Inc., a Delaware corporation
InventorsDonald Barber, Robert Smith, Robert Pavlinsky, Bruce Ingram
Estimating the term…
The present invention relates to coiled electrode assemblies having conductive tabs, methods of attaching the conductive tabs to the coiled electrode, and electrochemical cells employing such assemblies. An electrode plate which is coated with active material has a designated area for tab attachment. The conductive tab area's active material is pierced with opposing, offset piercing plates which have raised surface probes which penetrate the conductive tab area's coating and substrate. This tab area is cleared of active material and reinforced with a reinforcing material and a conductive tab is welded to the thus treated area resulting in an electrode plate having a strong integrated tab assembly.
A method of producing an electrode plate having a conductive tab area comprising the steps of:
A method of producing an electrode plate having a conductive tab area comprising the steps of:
An electrode plate having an underlying porous substrate coated with an electrochemically active material, wherein the electrode plate comprises a conductive tab area substantially free of the active material and a conductive tab attached to the conductive tab area, and a reinforcing material between the conductive tab and the conductive tab area.
An electrochemical cell comprising a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode comprises an electrode plate having an underlying porous substrate coated with an electrochemically active material, wherein the electrode plate has a conductive tab area substantially free of the active material and a conductive tab attached to the conductive tab area, and a reinforcing material between the conductive tab and the conductive tab area.
Dependencies are inferred from the claim text.