Method for reducing gas pressure in an electrochemical cell

Details Method for reducing gas pressure in an electrochemical cell Method for reducing gas pressure in an electrochemical cell

1980-11-17

1981-12-01

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Process of cell operation

Activation of inactive cell

429 49, H01M 1052

Patent

active

043037445

ABSTRACT:
A method for treating carbon-containing cathodes of a primary electrochemical cell for the purpose of reducing the gas pressure in the cell during open circuit and during discharge of the cell. The method of the invention includes purging the carbon-containing cathodes of the cell with sulfur dioxide or thionyl chloride gas to displace water and insoluble gases (oxygen and nitrogen, and argon or helium) entrapped within the carbon of the carbon-containing cathodes. The purge gas is soluble in an electrolytic solution including liquid thionyl chloride as is employed to activate the cell for use in discharge.

REFERENCES:
patent: 3483042 (1969-12-01), Hulse
patent: 3721586 (1973-03-01), Jasinski et al.
patent: 4184010 (1980-01-01), Dey et al.

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