Abstract: The disclosure relates to a module housing for accommodating a cell stack having multiple individual battery cells for a high-voltage battery of a motor vehicle, wherein the module housing has at least one first side wall confining the cell stack in its longitudinal direction z when said cell stack is accommodated in the module housing. Herein, the at least one first side wall has a passage opening extending from a top to a bottom of the first side wall, in which a mixing element is arranged to mix a gap filler or, in general, a heat transfer medium and to convey the same underneath the battery module formed by the cell stack.

Abstract: The disclosure relates to a method for introducing a heat-conducting medium between a battery module and a cooling base, wherein the battery module is positioned in relation to the cooling base such that a lower side of the battery module faces toward the cooling base and an upper side of the battery module faces away from the cooling base.