Chemistry: electrical current producing apparatus – product – and – Having means to accommodate electrode expansion
Patent
1997-01-06
1999-08-31
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Having means to accommodate electrode expansion
429174, 429175, 429185, H01M 204
Patent
active
059452340
ABSTRACT:
This invention pertains to electrode cans and metal air electrochemical cells made with the electrode cans. The invention provides improved structure, and methods for making the outer edge of the closed end of the can at the joinder of the closed end of the can with an side wall extending from the closed end. A substantially flat portion of the outer surface of the closed end of the can extends outwardly of the inner surface of the side wall. The electrochemical cells are assembled using improved assembly methods. Button-type electrochemical cells made using the invention are free of the inward dishing common to especially cathode cans in such button cells.
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Harris, Frank M. and Schimpf, Mark J., "Zinc-Air Rechargeable Batteries For Mobile Power", 1994, pp. 146-151.
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Kalafut Stephen
Rayovac Corporation
Tumm Brian R.
Wilhelm Thomas D.
Winkelman Michael L.
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