Rechargeable batteries and methods of preparing same

Details Rechargeable batteries and methods of preparing same Rechargeable batteries and methods of preparing same

1996-07-17

1998-07-07

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

296234, 429 94, 429139, H01M 218

Patent

active

057766290

ABSTRACT:
The present invention provides a rechargeable battery comprising (a) a container having a top, a bottom, and one or more side walls, and, positioned within the container, (b) an anode subject to shedding during charge/discharge cycling, (c) a cathode subject to shedding during charge/discharge cycling, (d) a separator between the anode and the cathode, (e) an electrolyte, and (f) means to inhibit the formation of a conductive pathway between the anode and the cathode sufficient to render the battery incapable of holding a charge by way of the material shed from the anode and the cathode during charge/discharge cycling. The present invention also provides a method of preparing such a rechargeable battery.

REFERENCES:
patent: 2988586 (1961-06-01), Andre
patent: 3003012 (1961-10-01), Duddy
patent: 3484290 (1969-12-01), Knight
patent: 4143212 (1979-03-01), Ueno et al.
patent: 4668320 (1987-05-01), Crabtree
patent: 5470676 (1995-11-01), Nakano
patent: 5478362 (1995-12-01), Oota et al.
NASA Technical Brief, "Suppressing the Growth of Dendrites in Secondary Li Cells," 20(4), Item #40, NPO-193218 (Apr. 1996).
NASA Technical Brief, "Improved Separators for Rechargeable Lithium Cells," NPO-18585 (1994) (Month Unknown).

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