METHOD OF MANUFACTURING BATTERY MODULE CAPABLE OF PREVENTING CHAIN IGNITION

A method of manufacturing a battery module may prevent chain ignition. The method may include preparing a module case having a plurality of receiving portions formed therein, each of the receiving portions having a space of a predetermined size; disposing a respective battery cell among a plurality battery cells in each of the receiving portions; and heating the module case with the battery cells to a predetermined temperature to fix the battery cells in the respective receiving portions of the module case. The module case comprises a lower plate, a plurality of side plates, and a plurality of partition walls configured to form the receiving portions, and each of the partition walls comprises a lower partition wall extending from the lower plate by a predetermined height and an upper partition wall extending from the lower partition wall by a predetermined height.