Leak-proof structure for venting gas from a battery

Details Leak-proof structure for venting gas from a battery Leak-proof structure for venting gas from a battery

H - Electricity

01

M

319/48

H01M 2/12 (2006.01)

Patent

CA 1075765

ABSTRACT OF THE DISCLOSURE A vent structure intended for use in venting gas from the interior of a battery housing can be constructed so as to use a generally cup-shaped, re- silient valve element. The element is positioned within a cavity at the top of the housing with the bottom of the element spaced from an opening in the bottom of the cavity and with the peripheral wall of the element resiliently engaging the interior of the cavity. A retainer extends across the open top of the ca- vity and engages the bottom of the valve element so as to hold it in place. The retainer holds the valve element so that the peripheral wall of the valve ele- ment can flex inwardly to permit the escape of gas. The vent structure is utilized with a gas-liquid separator placing the opening in the bottom of the cavity in communication with the interior of the housing. The cavity and the gas liquid separator are shaped so as to permit liquid to drain back into the interior of the housing from within the interiors of the cavity and the gas- liquid separator.

291434

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