PRESSURE RELIEF ELEMENT, PRESSURE RELIEF DEVICE AND BATTERY

The present invention relates to a pressure relief element () to be used as an overpressure safety means in devices where a gaseous medium must be rapidly released in case of overpressure, wherein the pressure relief element () has at least one notch () which is designed as a predetermined breaking point where the pressure relief element () breaks at a certain level of overpressure, thereby irreversibly opening an exhaust path for the gaseous medium. The present invention also relates to a pressure relief device of an electrochemical battery, comprising such a pressure relief element and a battery comprising such a pressure relief device.