A BATTERY SYSTEM AND A VEHICLE INCLUDING AT LEAST ONE BATTERY SYSTEM

The present invention relates to a battery system and (50) a vehicle including the battery system. The battery system (50) of the present invention comprises a battery module (20) with a plurality of battery cells (10) interconnected between module terminals (21, 22), a battery disconnecting unit, BDU (80) comprising an interface unit (81) electrically connected to and selectively closing an electric path between the module terminals (21, 22) and battery system terminals (51, 52), a housing (70) enclosing the battery module (20) and the BDU (80) and comprising an opening (55), a cooling plate (110) detachably mounted on an outside of the housing (70) and configured for closing the opening (55) of the housing (70), and a thermally conductive and electrically insulating thermal interface material layer, TIM (120), disposed between and adjacent to the interface unit (81) and the cooling plate (110).