Battery module and battery pack

The utility model relates to a battery module and a battery pack, and relates to the technical field of batteries, the battery module comprises a plurality of battery packs, a heat insulation part and a vapor chamber; wherein the battery pack comprises a plurality of battery cells with stacked large surfaces, and the large surfaces are surfaces of which the areas are not smaller than those of other surfaces in the surfaces of the battery cells; the heat insulation part is positioned between the two large surfaces of the two adjacent battery cells; the vapor chamber is positioned between two adjacent battery packs, is in contact with the two battery packs, and is in contact with at least three battery cells in any battery pack; the vapor chamber comprises a heat conduction layer. The vapor chamber is arranged between the two adjacent battery packs, so that the effect of transferring part of heat of the thermal runaway battery cells to the multiple battery cells for heat dissipation is achieved. 本申请涉及一种电池模块以及电池