HEAT ABSORBER AND SECONDARY BATTERY MODULE PROVIDED WITH HEAT ABSORBER

A heat absorber having an excellent heat absorption property, heat insulation property, and pressure resistance and being capable of changing into a heat insulator in a high temperature range, and a secondary battery module including the heat absorber are provided. The heat absorber includes a bag fillable with a content, and an aqueous solvent and a water-soluble inorganic powder configured to fill the bag as the content. The secondary battery module includes the heat absorber.