Method for arranging a contact element, contact element and battery stack

A battery stack having at least one battery plane with at least one battery cell, the battery stack comprising:

• one contact element being positioned on the battery cell, wherein the contact element includes a contact plate portion, a transition portion and a positive pole portion, the contact plate portion surrounding the transition portion and the transition portion surrounding the positive pole portion, and further wherein said contact plate portion and said positive pole portion are spaced apart from each other and positioned parallel or at least substantially parallel, wherein said transition portion has a perforation portion for introducing at least one security opening to establish at least one security portion wherein the contact element is positioned on the battery cell by:
• a) providing a contact element having at least a contact plate portion, a transition portion and a positive role portion, wherein the contact plate portion surrounds the transition portion and the transition portion surrounds the positive pole portion, and further wherein the contact plate portion and the positive pole portion are spaced apart from each other and are arranged parallel or at least substantially parallel,
• b) arranging the contact element provided in step a) on the battery cell of the battery plane, wherein when the contact element is positioned, the contact plate portion is positioned on a contact plate of the battery plane and the positive pole portion is positioned on a positive pole of the battery cell of the battery plane;
• and
• c) introducing at least one security opening into a perforation region of the transition portion to establish at least one security section in the transition portion.