Safety element for battery cell

The galvanic element (10) has a stainless steel housing portion (34) that is arranged on a negative potential portion (36) or on a neutral potential portion. A positive terminal (14) is connected with a first collector (20). A negative terminal (12) is connected with a second collector (22). The negative terminal and the second collector are made of copper material. The positive terminal and the first collector are made of aluminum material. A deformable membrane (46) is formed of stainless steel or nickel.