公开(公告)号：EP4064448A1

公开(公告)日：2022-09-28

申请号：EP20891250.1

申请日：2020-11-20

申请人： SK On Co., Ltd.

发明人： CHUNG, Gyu Jin ,  ABBASI GHARACHEH, Majid ,  RO, Yun Jo ,  JU, Seung Hoon

IPC分类号： H01M50/50 ,  H01M50/543 ,  B23K31/12 ,  B23K101/38

摘要： The present disclosure relates to a battery module comprising: a plurality of battery cells each including an electrode tab; and a bus bar connected to the electrode tab to electrically connect the plurality of battery cells to each other. The bus bar includes a plate having a plurality of holes. The electrode tab of each of the battery cells is inserted into at least a part of the plurality of holes of the plate. The electrode tab inserted into the hole and the plate are coupled to each other by a welding bead, and the welding bead has a width and a height defined by Equations 1 and 2, respectively.