Safety member for secondary battery

The present invention is a pair of sheet-type safety member mounted on both sides of the secondary battery electrode assembly, each safety member is a metal sheet (sheet A) electrically connected to the positive electrode terminal and a metal sheet (sheet) electrically connected to the negative electrode terminal B) and an insulating sheet interposed between the two metal sheets, the lower ends of both safety members are interconnected, and the outer surface of the outer metal sheet (sheet A or sheet B) has a surface treatment or frictional force enhancement for improving the frictional force. It provides a safety member characterized in that the member is added. Therefore, the safety member according to the present invention increases the interfacial friction between the battery case and the electrode assembly, thereby preventing movement of the electrode assembly and preventing internal short circuits, and also causing fine short circuits when penetrating the bed to ignite the battery. And explosion can be prevented, there is an effect that can ultimately improve the safety of the battery.