Cylindrical Battery Cell Housing with Intrinsic Pressure Relief Means

Abstract

A cylindrical battery cell housing of a battery cell with a battery cell housing jacket has a first material made of an aluminium alloy with a cylindrical cross-section at least in areas. The battery cell housing jacket is connected to a battery cell housing lid having a second material made of an aluminium alloy in a force-fitting and/or materially bonded manner. The battery cell housing lid is designed as a sheet metal cut-out, which serves as a pressure relief means for the battery cell housing. In the event that the permissible internal pressure of the battery cell housing is exceeded, the battery cell housing lid ensures pressure relief of the battery cell in the axial direction.

CPC Classifications