ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,991, issued on Oct. 20, was assigned to SK On Co. Ltd. (Seoul, South Korea) and SK Innovation Co. Ltd. (Seoul, South Korea).

"Weld bead and secondary battery module including the same" was invented by Seul Gi Lee (Daejeon, South Korea), Won Seok Choi (Daejeon, South Korea), Jae Hun Kim (Daejeon, South Korea) and Ki Dong Lee (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A battery module including a plurality of battery cells each including an electrode tab and at least one bus bar comprising a plate connected to each of the electrode tabs via a weld bead, wherein the plate and the weld bead comprises a first metal at a particul...