BATTERY MODULE

A battery module is provided. The battery module includes: first and second bus bars arranged adjacent to each other to electrically connect battery packs adjacent to each other; and a bus bar cover covering and insulating the first and second bus bars from the outside thereof and insulating the first and second bus bars from each other, wherein the bus bar cover includes a hollow portion exposing a coupling hole of the first and second bus bars. Accordingly, sufficient insulation may be secured for the bus bars electrically connecting different battery packs, malfunction and safety accidents caused by the short circuit of the bus bars through which high-voltage charge/discharge currents flow may be prevented, and the insulation structure of the bus bars may be simplified by accommodating different adjacent bus bars together.