Battery module

The present invention relates to a battery module comprising: a plurality of battery cells, each of the plurality of battery cells comprising an electrode tab; and a bus bar connected to the electrode tabs to electrically connect the plurality of battery cells to each other, in which the bus bar includes a plate formed with a plurality of holes, the electrode tabs of each of the battery cells being inserted into at least a portion of the plurality of holes of the plate, the electrode tab inserted into the hole and the plate are joined to each other by a weld bead having a width and a height defined by Formula 1 and Formula 2. 本发明涉及一种电池模块，其包括：多个电池单元，多个所述电池单元中的每一个包括电极接头；以及汇流条，连接到所述电极接头以将多个所述电池单元彼此电连接，其中所述汇流条包括形成有多个孔的板，每个所述电池单元的电极接头插入到所述板的多个孔中的至少一部分孔中，插入到所述孔中的电极接头和板通过焊道彼此结合，所述焊道具有由式1和式2定义的宽度和高度。