Connection Member Connected to Electrode Leads by Physical Coupling and Battery Cell Stack Including the Same

Disclosed are a connection member configured to perform electrical connection between electrode leads, wherein the connection member includes a pair of a first connection member and a second connection member, one of the first connection member and the second connection member is provided with a fixing portion configured to perform connection therebetween, the other of the first connection member and the second connection member is provided with a catching portion configured to allow the fixing portion to be fastened thereto, the electrode leads are physically coupled to each other without welding, and a process of excessively bending the electrode leads so as to be coupled to bus bars is omitted, whereby it is possible to improve safety of the electrode leads, and a battery cell stack including the same.