BATTERY PACK

摘要

Disclosed is a battery pack which, provided with a busbar electrically connecting adjacent cell blocks, prevents current from becoming concentrated in a specific region of the busbar and prevents flexion and breaking of the busbar. Multiple unit cells (1) are accommodated in the battery pack, which is also provided with a tabular busbar (7), and with multiple battery blocks (6) which are arranged so as to be adjacent in a first direction separated by a certain gap (S). The tabular busbar (7) is arranged contacting a first surface (s1) of the adjacent battery blocks (6) and electrically connects the adjacent battery blocks (6). The busbar (7) has at least one opening (O) communicating with the gap (S) and has at least one first convex section (8) protruding towards the gap (S). A second surface (s2) of the adjacent cell blocks (6) is exposed in the space (S), and the first convex section (8) contacts said second surfaces (s2).