Electrochemical cell having a safety vent closure

Details Electrochemical cell having a safety vent closure Electrochemical cell having a safety vent closure

1980-09-26

1982-05-11

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Blowout type

429 54, 429174, 429196, H01M 212

Patent

active

043294057

ABSTRACT:
A safety blow-out vent closure for galvanic cells, such as nonaqueous oxyhalide cells, which comprises the employment of a conductive tubular member secured to the cell's housing and surrounding a vent orifice in the cell's housing and wherein a deformable member is force-fitted in said vent orifice and adapted to at least partially be ejected from the vent orifice upon the build up of a predetermined internal gas pressure within the cell. The invention is also directed to a method for assembling an electrochemical cell with the above-described safety vent closure.

REFERENCES:
patent: 2766408 (1956-10-01), Georgiev et al.
patent: 3415690 (1968-12-01), Richman
patent: 3664878 (1972-05-01), Amthor
patent: 4075398 (1978-02-01), Levy
patent: 4191806 (1980-03-01), Levy
patent: 4207385 (1980-06-01), Hayama

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