Safety devices, safety systems, protected battery units and methods for reducing the total power output of a battery element

摘要

The present invention is a safety device 20 for reducing the total power output of at least one component 26 having a porous material in response to a trigger signal, in particular a Li-ion battery element, wherein the safety device 20 is at least the And a compression unit 22 for actively compressing the component 26 with a porous material, the compression unit 22 being the battery element 12 as a result of the reduction in porosity of the porous material due to the compression. ) Is a safety device suitable for compressing the porous material so that the output current of the material is significantly reduced. The invention also relates to a corresponding safety system 14, a corresponding battery unit 10, and a corresponding method for discharging the battery element 12.