Hydro-Quebec

Pu Wang

Karim Zaghib

Mustapha El Mazouzi

A battery safety vent assembly for a battery casing with an upper surrounding clamp-like shape is disclosed. The assembly has a positive cap, a safety vent disk extending under a disk element of the positive cap, a gasket insulator snugly fitting into the clamp-like shape of the battery casing and providing support to the positive cap, the safety vent disk and a circuit interrupt device embedded in an underside recess area of the gasket insulator. The circuit interrupt device is coupled to a button downwardly projecting from the safety vent disk. Gas release passages, openings and interfaces between parts of the assembly are arranged so that when gas pressure inside the battery casing exceeds a predetermined threshold limit of pressure, weak lines in the safety vent disk allow gas to safely exit the battery casing.

Growing community of inventors

CA

Pu Wang