Battery module, and battery pack and vehicle comprising same

A battery module comprising:

• a battery cell assembly comprising a plurality of battery cells;
• a bus bar assembly on the battery cell assembly and electrically connected to the plurality of battery cells;
• a cooling unit spaced apart by a certain distance from the bus bar assembly and configured to cool the battery cell assembly;
• a potting resin on at least one of an upper side and a lower side of the battery cell assembly;
• and
• at least one of a lower side and an upper side of the plurality of battery cells including a vent unit, the vent unit being configured to discharge gas therethrough,
• wherein the potting resin is filled between the plurality of battery cells and contiguously further contacts and covers of the vent unit,
• wherein each of the plurality of battery cells includes the vent unit integrated into an end portion of each of the plurality of battery cells, and
• wherein a thickness of the vent unit is less than a thickness of a peripheral portion of an end portion of the end portion of each of the plurality of battery cells.