Battery pack and device including the same

A battery pack comprising:

• two or more battery modules, each of the battery modules including a cell stack in which one or more battery cells are stacked and a module frame accommodating the cell stack therein;
• a pack frame accommodating the two or more battery modules therein such that a first side of the module frame of each of the two or more battery modules is positioned adjacent to a first side of the pack frame;
• a heat sink disposed on the first side of the module frame so as to define a space between the cell stack and the heat sink, wherein the heat sink is accommodated in the pack frame;
• and
• one thermally conductive resin layer located in the space so as to directly contact the cell stack of each of the battery modules, the one thermally conductive resin layer conforming to the cell stack of each of the battery modules and to the heat sink by having solidified in the space from a flowable state while in contact with the cell stack and the heat sink,
• wherein the battery modules share the one thermally conductive resin layer, such that the cell stack in one of the battery modules and the cell stack in another of the battery modules are in contact with the one thermally conductive resin layer,
• wherein each module frame of the two or more battery modules is open along the respective first side such that the one thermally conductive resin layer makes direct contact with the one or more battery cells within the two or more battery modules, and
• wherein the heat sink is in direct contact with the one thermally conductive resin layer.