BATTERY MODULE

The battery module according to one embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked; and a module frame for housing the battery cell stack, wherein the module frame includes a first module frame having an opened upper part and a second module frame having an opened lower part, wherein the first module frame includes a first side surface part, a second side surface part, and a bottom part for connecting the first side surface part and the second side surface part, wherein the second module frame includes a third side surface part, a fourth side surface part, and a ceiling part for connecting the third side surface part and the fourth side surface part, and wherein the first module frame and the second module frame surround the battery cell stack in a state where the first side surface part and the third side surface part are overlapped, and the second side surface part and the fourth side surface part are overlapped.