Busbar assembly and battery module

The utility model provides a busbar assembly and a battery module, and the busbar assembly comprises a series connection busbar unit and a bridging busbar, the series confluence unit is used for connecting the pole columns of the battery cells in the battery module in series; the bridging busbar is arranged at at least one end of the series-connection busbar unit, the bridging busbar can be connected with the series-connection busbar unit of another busbar assembly, and the two series-connection busbar units and the bridging busbar define an avoiding groove with an opening in the bottom. According to the busbar assembly disclosed by the utility model, the bridging busbar is arranged, so that the integration level of the busbar assembly is favorably improved, the bridging busbar can be connected with the series-connection busbar units of the two battery modules, the use of an existing bridging copper bar and an output pole base is omitted, and the avoiding groove can avoid a cross beam in a battery box; the di