Abstract: A battery module includes a phase change material in an insulation sheet to absorb heat and reduce thermal conductivity, thereby preventing or reducing heat transfer between battery cells, and delaying, preventing, or reducing an event that may be caused by the heat. As an example, the battery module includes a plurality of battery cells and a plurality of insulation sheets interposed between the plurality of battery cells, where each of the insulation sheets includes a heat-insulating sheet having a first surface and second surface, a plurality of through-holes defined in the heat-insulating sheet and passing between the first surface and the second surface opposite the first surface, and a phase change material filled in the plurality of through-holes.

Abstract: A battery module including a plurality of battery cells aligned in a direction, each of the battery cells including a cap plate including a terminal portion, and a vent portion to exhaust a gas; a cover covering the vent portions; and a heat-resistance member between the battery cells and the cover, and having an opening formed in a region corresponding to each vent portion.

Abstract: A battery module including a plurality of battery cells aligned in a direction, each of the battery cells including a cap plate including a terminal portion, and a vent portion to exhaust a gas; a cover covering the vent portions; and a heat-resistance member between the battery cells and the cover, and having an opening formed in a region corresponding to each vent portion.