Electrochemical cell having a resealable vent closure

Details Electrochemical cell having a resealable vent closure Electrochemical cell having a resealable vent closure

1980-09-26

1982-05-04

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Elastic, resilient or spring biasing valve means

429 56, 429196, H01M 212

Patent

active

043282890

ABSTRACT:
A resealable vent closure for galvanic cells, such as non-aqueous oxyhalide cells, which comprises a castellated type of cap employed to compress and retain a resilient deformable member over a vent orifice in the cell's housing such that the compressed resilient deformable member will form a normally tight seal at the vent orifice which will vent and reseal after a predetermined pressure build up within the cell. The invention is also directed to a method for assembling an electrochemical cell, such as a nonaqueous oxyhalide cell, with the above-described resealable vent closure.

REFERENCES:
patent: 3415690 (1968-12-01), Richman
patent: 3664878 (1972-05-01), Amthor
patent: 4207385 (1980-06-01), Hayama

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