Water-free organic electrolyte

Details Water-free organic electrolyte Water-free organic electrolyte

1987-03-31

1987-12-15

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429197, H01M 616

Patent

active

047133058

ABSTRACT:
In galvanic high-energy cells with negative light-metal electrodes (e.g., Li) and electrolyte component solvents including ether with a CH bond activated by the neighboring groups --O--, .dbd.CO or .dbd.N, the formation of explosive peroxides is inhibited by adding stabilizer substances to the electrolyte in amounts of about 100 ppm. These stabilizer substances can include alkyl-substituted phenols, especially 2,6-di-tert-butyl-4-methylphenol, and readily oxidizable organosulfur and organophosphorus compounds such as trimethylphosphite. This permits safe handling of the cells, even under unusual operating conditions (e.g., prolonged overcharging at high current).

REFERENCES:
patent: 4579795 (1986-04-01), Gray
patent: 4612265 (1986-09-01), Connolly et al.
patent: 4643958 (1987-02-01), Thrash et al.

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