BATTERY MODULE INCLUDING GAS CUTOFF STRUCTURE

The present invention relates to a battery module configured to have a structure capable of preventing spread of flames when fire breaks out in the battery module, and more particularly to a battery module including a plurality of battery cell module assemblies, each of the battery cell module assemblies including battery cells arranged in tight contact with each other, a side plate electrically connected to electrode leads of the battery cell module assemblies, a duct disposed outside the side plate, and a gas cutoff structure disposed in the duct, wherein the plurality of battery cell module assemblies is disposed so as to have a space therebetween.