Casing of an electric cell

摘要

The invention relates to a casing of an electric cell and to a method of manufacturing the cell. The casing is fitted with a vent. The vent consists of a tongue formed in a metal portion of the casing whose inner surface is in contact with a seal; the non-detached tongue in the wall is turned towards the enclosed volume of the casing. In the case of internal overpressure, the seal is deformed and allows the interior of the electric cell to communicate with the exterior. Application to alkaline electrolyte cells.