DICHTUNG FÜR ELEKTROCHEMISCHE ZELLE

摘要

A ventable seal is provided for closing the open end of an electrochemical cell. The seal incorporates indentations formed in the outer surface of the centrally located hub that abuts a flexible diaphragm at a ventable interface. If a cell's internal pressure reaches an unsafe level and the seal ruptures, the indentations prevent resealing of the ruptured seal thereby avoiding a second build up of pressure within the cell.