A battery pack including at least one battery cell including an electrode at an end of the at least one battery cell and an outer circumferential surface extending between the end and an opposite end of the at least one battery cell; and a connection cooling member extending from the end of the at least one battery cell towards the opposite end of the at least one battery cell along the outer circumferential surface of the at least one battery cell the connection cooling member and the electrode including a same metal and being integral with each other.