Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Patent
1974-07-29
1978-01-31
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
H01M 616
Patent
active
040716651
ABSTRACT:
High energy density galvanic batteries having high utilization of active electrode material are prepared using voltaic cells having lithium anodes, cathode depolarizers reducible by said anodes such as cupric sulfide, and electrolytes comprising a dioxolane as solvent and up to about 20 weight percent of a conductive non-reactive electrolyte salt such as lithium perchlorate dissolved therein. Optionally up to 50 weight percent of the solvent can be a second solvent which is an aliphatic or cycloaliphatic carbohydric ether to reduce battery gassing. Additional small amounts of a tertiary nitrogen base can be added to suppress the tendency of the electrolyte system to form polymer.
REFERENCES:
patent: 3542601 (1970-11-01), Gabano
patent: 3544385 (1970-12-01), Newman
patent: 3546022 (1970-12-01), Gabano et al.
patent: 3726716 (1973-04-01), Athearn et al.
Buhner et al., High Energy System (organic electrolyte), Feb. 1967, Report AD 648,920, prepared for the U.S. Army Material Command, pp. 2 and 3.
E. I. Du Pont de Nemours and Company
Walton Donald L.
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