BATTERY MODULE AND METHOD OF MANUFACTURING THE SAME

A battery module includes a first member and a second member that are coupled in directions that cross each other, wherein the first member and the second member are weld-coupled; a welding portion of the first member and the second member includes a first welding portion formed on the first member and a second welding portion formed on the second member, based on a coupling surface of the first member and the second member; and the first welding portion and the second welding portion have shapes that are asymmetric to each other.