BATTERY PACK

Battery modules each include: a module case; and a plurality of cells arranged in the module case, wherein each module case is separated into a battery chamber in which the cells are accommodated and an exhaust path through which an exhaust gas from at least one of the cells is released via an outlet opening to the outside of the module case, the battery modules in an arrangement are mounted on a module mounting member, the module mounting member is fixed to a pack case, and the module mounting member is provided with an exhaust duct through which the exhaust gas released from the exhaust path passes.