A secondary battery module, a secondary battery pack, and a vehicle including the same are provided. The secondary battery module includes a plurality of secondary battery cells having a battery case in which an electrode assembly and an electrolyte are accommodated; a frame member supporting the plurality of secondary battery cells; and a cover accommodating the plurality of secondary battery cells and the frame member. The plurality of secondary battery cells have a water proofing structure.

There are provided a thermally expandable fire-resistant material for battery pack and a fire-resistant sheet for battery pack, which have high flame retardancy and thermal insulation properties to thermal runaway and ignition of on-vehicle batteries. The thermally expandable fire-resistant material for battery pack is one to be used for a battery pack to be mounted on vehicles, and contains a resin and a thermally expandable compound, and has an expansion ratio in a case where heated at 600° C. of 2.5 times or more.

One embodiment provides an electronic device, including: a battery pack stack comprising at least two battery packs; wherein the battery pack stack comprises at least one cumulative heat reducing component positioned between the at least two battery packs. Other aspects are described and claimed.

A battery apparatus includes at least two battery units. Each of the battery units includes at least two batteries. A heat insulating pad is disposed between the adjacent two battery units, and at least a pair of the adjacent two batteries belonging to a same battery unit contact each other with largest surfaces of the batteries.

A battery module comprises a battery sub-module including one or more battery cells, and a barrier disposed to face one side surface of the battery sub-module, in which the barrier includes a rigid member supporting the battery sub-module, and a heat absorbing member accommodated in the rigid member to absorb heat generated by the one or more battery cells.

A battery module comprises a battery sub-module including one or more battery cells, and a barrier disposed to face one side surface of the battery sub-module, in which the barrier includes a rigid member supporting the battery sub-module, and a heat absorbing member accommodated in the rigid member to absorb heat generated by the one or more battery cells.

A thermal management apparatus and method of use, such as in a battery pack or electronic device. A thermally responsive material is disposed between two surfaces, wherein the thermally responsive material changes upon heating, to increase a thermal conductance between the two surfaces. The thermally responsive material is offset from one of the surfaces and expands upon heating to connect the two surfaces. The thermally responsive material is a phase change composite including a phase change material selected from a paraffin wax, a hydrated salt, and combinations thereof.

A thermal management apparatus and method of use, such as in a battery pack or electronic device. A thermally responsive material is disposed between two surfaces, wherein the thermally responsive material changes upon heating, to increase a thermal conductance between the two surfaces. The thermally responsive material is offset from one of the surfaces and expands upon heating to connect the two surfaces. The thermally responsive material is a phase change composite including a phase change material selected from a paraffin wax, a hydrated salt, and combinations thereof.

A battery module includes: a plurality of battery cells stacked to face each other; a plurality of cell cartridges stacked to surround the plurality of battery cells; and a plurality of PCM capsules disposed in the cell cartridges and each containing a phase change material (PCM) therein.

A battery module includes: a plurality of battery cells stacked to face each other; a plurality of cell cartridges stacked to surround the plurality of battery cells; and a plurality of PCM capsules disposed in the cell cartridges and each containing a phase change material (PCM) therein.