BATTERY MODULE HAVING STRUCTURE ENABLING RAPID DEPLOYMENT OF SPRINKLER, AND ESS INCLUDING SAME

A battery module includes a plurality of battery cells; a module housing configured to accommodate a cell stack including the plurality of battery cells; a sprinkler provided through the module housing at one side of the cell stack in a stacking direction; and at least one guide plate fixed inside the module housing and installed to be inclined so that one longitudinal end thereof is oriented toward the sprinkler.