Reversible high energy capacity metal-sulfur battery and method

Details Reversible high energy capacity metal-sulfur battery and method Reversible high energy capacity metal-sulfur battery and method

1995-02-14

1996-04-09

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429194, 429197, 429198, H01M 1200, H01M 1000

Patent

active

055060722

ABSTRACT:
A reversible high energy capacity battery and method of making that battery. A cathode is formed by packing a mixture of from about 10 to 90 weight percent finely divided sulfur and from about 90 to 10 weight percent finely divided graphite about an electrically conductive electrode, preferably in a porous enclosure. This cathode and a reactive metal anode are placed in a case of suitable configuration which is non-reactive with other components. An electrolyte is prepared by dissolving a metal solute and an ionic sulfide solute in a polar solvent, such as water. Buffering agents, conditioners and complexing agents may be added to the electrolyte to improve battery life and performance.

REFERENCES:
patent: 3993503 (1976-11-01), Ludwig
patent: 4025699 (1977-05-01), Silva et al.
patent: 4731309 (1988-03-01), Hoffman

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