ASSEMBLED BATTERY AND CELL CONNECTION METHOD

摘要

An assembled battery comprises: multiple cells 30 each having external terminals including a negative electrode terminal 50 and a positive electrode terminal 60; a bus bar 40 configured to connect the external terminal of one of two adjacent cells 30 to the external terminal of the other of these two adjacent cells 30; a connecting member 70 welded to the external terminal and the bus bar 40 so as to electrically connect the external terminal and the bus bar 40; a welding portion 80 at which the external terminal and the connecting member 70 are welded; and a welding portion 82 at which the bus bar 40 and the connecting member 70 are welded. The external terminal has a region that is at a distance from an outer package as compared with a portion of the connecting member 70 that is adjacent to the welding portion 80.