ELECTRICAL CONNECTION ASSEMBLY FOR BATTERY MODULE, BATTERY MODULE AND VEHICLE

The present application relates to an electric connection assembly for a battery module, a battery module and a vehicle. The electric connection assembly includes a plurality of electrical connection bodies corresponding to a plurality of cell groups of the battery module in a one-to-one relationship, and configured to electrically connect the plurality of the cell groups, wherein, the cell group includes a plurality of single cells, an anode electrode and a cathode electrode of the single cell are arranged on a same one side thereof, the electrical connection body is provided with a plurality of electrical connection portions respectively connected with the electrodes of the plurality of the single cells; each of a plurality of conductive portions is formed between adjacent electrical connection portions, and the plurality of conductive portions of the electrical connection body have a same length and a same cross-sectional area taken along a direction perpendicular to a length direction. Embodiments of the present application provide the plurality of conductive portions with the same length and the same cross-sectional area taken along the direction perpendicular to the length direction, so that the plurality of conductive portions of each electrical connection body have same internal resistances, and thus each single cell has same voltage. As a result, this lowers voltage difference between the single cells, and reduces workload of information processing of BMS and workload of backend detection.