Vehicle battery system

A vehicle battery system may include a vehicle battery having a plurality of battery cells and a cooling device to cool the vehicle battery, the cooling device comprising a heat sink (1) having at least one cooling channel (2), through which may flow a coolant, the heat sink being in thermal contact with the battery cells, to transfer heat from the battery cells to the heat sink (1); a coolant distributor (3) provided at least at one end of the heat sink (1), adhesively bonded to the heat sink (1), and which has a receiving region (4) to adhesively bond to the heat sink (1), with an adhesive (11) being applied in the receiving region (4), the receiving region (4) of the coolant distributor surrounding connection ends (5) of the heat sink (1), the connection ends (5) of the heat sink (1) being formed by delimitations of the cooling channel (1) of the heat sink (1), wherein the end faces (8) of the delimitations of the cooling channel form stops for the coolant distributor (3), with the result that the delimita