BATTERY MODULE

A battery module may include a heat exchanger including a lower wall having a plurality of first through-holes, an upper wall having a plurality of second through-holes corresponding to the plurality of first through-holes, a plurality of pipe members configured to connect the plurality of first through-holes and the plurality of second through-holes in a one-to-one manner, and a plurality of sidewalls configured to connect the lower wall and the upper wall to define a flow space for a heat exchange medium that adjoins the plurality of pipe members, in which a first sidewall, among the plurality of sidewalls, has an inlet port into which the heat exchange medium is introduced, and a second sidewall, among the plurality of sidewalls, has an outlet port from which the heat exchange medium is discharged, a plurality of battery cells respectively inserted into the plurality of pipe members, a first busbar assembly coupled to a lower portion of the heat exchanger and configured to support the plurality of battery cells, the first busbar assembly having a plurality of first terminals being in contact with lower end electrodes of the plurality of battery cells, and a second busbar assembly coupled to an upper portion of the heat exchanger and having a plurality of second terminals being in contact with upper end electrodes of the plurality of battery cells.