BATTERY MODULE, BATTERY PACK, AND VEHICLE

A battery module may include a plurality of battery cells; a module case having an inner space therein and accommodating the plurality of battery cells in the inner space; a polymer member filled in at least a part of the inner space of the module case accommodating the plurality of battery cells; and a filler at least partially inside the polymer member and interposed in at least one space of a space between at least one of the plurality of battery cells and the module case and a space between the plurality of battery cells.