WELDING METHOD, WELDED PRODUCT, AND BATTERY MODULE

The present disclosure relates to a welding method, a welded product, and a battery module, and the welding method according to the present disclosure includes a positioning process in which multiple base materials are positioned in overlapping with each other; and a welding process in which the multiple base materials are welded together to form a predetermined welding pattern, wherein the welding process welds the welding pattern in a form in which a plurality of spiral patterns are connected without overlapping.