SECONDARY BATTERY MODULE AND WALL OF SECONDARY BATTERY MODULE

摘要

A secondary battery module including a plurality of unit cells and partitions is provided to prevent generation of defects in welding of the partitions, and to improve the lifespan of a secondary battery module. The secondary battery module comprises: a plurality of unit cells(11); and partitions(20) disposed between one unit cell and another unit cell. In the secondary battery module, the partition comprises: two plate members(21) adjacent to each other via protrusions(22) formed on the surface of each plate member; at least one coupling portion(23) protruding out of the contact surface of the plate members; and an insertion portion(24) formed on the plate members so that the coupling portion is inserted thereto.