Connection structure and battery cell

Abstract

Connection structure (1) for connecting a pole pin and a drain tab (511) of a battery cell, characterized in that the connection structure (1) comprises: a pole pin connection section (10) designed for connection with the pole pin; a drain tab connection section (20) comprising a main body section (21) and at least one envelope section (22) connected to the main body section (21), wherein the main body section (21) is connected to the pole pin connection section (10); wherein a receiving area (210) penetrating in the thickness direction of the main body section (21) is provided, wherein the envelope section (22) is bendable relative to the main body section (21) and can be arranged at least partially in the receiving area (210) in order to be connected to the drain tab (511).