Lithium battery with roughened electrode tab

Details Lithium battery with roughened electrode tab Lithium battery with roughened electrode tab

1998-11-20

2000-09-12

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429161, 429178, H01M 226

Patent

active

061175897

ABSTRACT:
A lithium battery and method for manufacturing the lithium battery are provided. The battery includes electrodes formed of a layer of an active material, the active material being capable of occluding and discharging lithium electrochemically, provided on the surface of a current collector, electrode external terminals for providing electricity to the outside of the battery, and an electrode tab joined at an end thereof to a surface of said current collector and at another end thereof to an electrode external terminal. The electrode tab has a roughened surface at the end joined to the current collector, and the roughened surface is welded to the surface of said current collector. The roughened surface is produced by chemical etching, abrasion by an abrasive, abrasion by ultrasonic waves or by blasting with an abrasive.

REFERENCES:
patent: 4443918 (1984-04-01), Morinari et al.
patent: 5154993 (1992-10-01), Beatty
patent: 5162178 (1992-11-01), Obsawa et al.
patent: 5185224 (1993-02-01), Barnabei et al.
patent: 5871861 (1999-02-01), Hirokou et al.

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