Abstract: The thermally conductive composition comprises a thermally conductive filler dispersed in a liquid matrix.

Abstract: There is provided a heat-conducting composition capable of forming thick films in good productivity. The heat-conducting composition contains a binder and a heat-conducting filler, wherein a first viscosity thereof is 50 to 300 Pa·s as measured at a rotating speed of 10 rpm at 25° C. by using a rotational viscometer; and the ratio [second viscosity/first viscosity] of a second viscosity to the first viscosity is 3 to 8 where the second viscosity is a viscosity measured at a rotating speed of 1 rpm at 25° C. by using the rotational viscometer.

Abstract: The thermally conductive composition comprises a thermally conductive filler dispersed in a liquid matrix.

Abstract: A battery module including battery cells, a module housing storing the battery cells, and a gap-filling material loaded in the module housing. The battery cells are in a flat shape and stores battery elements in a flexible film pouch. The gap-filling material is a silicone elastic material containing a thermally conductive filler and having hardness of 80 or more for E hardness or 60 or more for A hardness. The gap-filling material is loaded between the battery cells and between the battery cell and the module housing on one side in a direction intersecting a direction in which the battery cells are arrayed side by side with flat surfaces of the battery cells facing each other. The gap-filling material adheres to the battery cells to retain a space between the battery cells and to conduct heat generated by the battery cells to the module housing.