Purification process for lithium battery electrolytes

Details Purification process for lithium battery electrolytes Purification process for lithium battery electrolytes

1980-07-03

1981-12-29

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

210757, 210758, H01M 616

Patent

active

043083242

ABSTRACT:
A method is described for purifying electrolytes used in alkali battery systems. An electrolyte is mixed with or fed through a column containing a mercury amalgam of the alkali of the electrolyte salt. The amalgam reduces the alkali-metal reactive impurities within the electrolyte. The electrolyte is also mixed with an oxidizing agent or fed through a column containing the oxidizing agent in order to oxidize impurities in the electrolyte.
Electrolytes so treated will exhibit improved cycling capabilities, because the electrolyte will now be devoid of impurities which respectively can react with the anode and cathode of the battery.

REFERENCES:
patent: 3463606 (1969-08-01), Smit et al.

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