CASE FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING CASE

The present disclosure provides a case for a secondary battery, and a secondary battery. The case includes: a body including an accommodation portion having an open end and a flange portion extending around the open end; a cover configured to be coupled to the flange portion to seal the open end; and a welded portion coupling the flange portion and the cover, wherein the welded portion includes a first welding bead and a second welding bead having different bonding forces.