公开(公告)号：US09871235B2

公开(公告)日：2018-01-16

申请号：US14359040

申请日：2012-11-16

Applicant: Johnson Controls Technology Company

Inventor： Ralf Joswig ,  Martin Wiegmann ,  Helge Brenner ,  Markus Hoh ,  Kevin Chladek

IPC: H01M2/12 ,  H01M2/10

CPC classification number: H01M2/1072 ,  H01M2/1205 ,  H01M2/1241 ,  H01M2/1264 ,  H01M2220/20

Abstract: The present invention relates to a pressure relief element (11) 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 (11) has at least one notch (9) which is designed as a predetermined breaking point where the pressure relief element (11) 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.