NOVELTY - The arrangement (10) has a cooling circuit (12) in which cooling medium i.e. water-alcohol mixture, passing through a cooling passage of an electrical energy storage unit (14) is conveyed. The cooling circuit is thermally coupled over a latent heat storage unit (22) with another cooling circuit (26) i.e. air-conditioning circuit, of a vehicle. A bypass pipe is provided in the former cooling circuit to bypass the latent heat storage unit. The bypass pipe comprises a heat exchanger i.e. finned pipe, for transferring heat energy between the cooling medium and the surrounding air.    USE - Cooling arrangement for an electrical energy storage unit i.e. high volt battery (claimed), of a vehicle e.g. electric vehicle, hybrid vehicle such as plug-in-hybrid vehicle, and vehicles with range extenders.    ADVANTAGE - The latent heat storage unit is provided with heat storage units such as phase change materials, so that an energetically favorable coupling of the cooling circuits can be achieved, thus reducing the effort for cooling the electrical energy storage unit arising at peak loads, and reducing the entire power consumption of the vehicle. The cooling arrangement can be applied to purely electric vehicles, plug-in hybrid vehicles or vehicles with range extenders in a problem-free manner. The arrangement reduces wastage of heat energy from the electrical energy storage unit and avoids the need for decoupling the energy storage unit for cooling, thus enhancing degrees of freedom with respect to energy management. The arrangement is provided with a control device to adjust the volume of cooling medium in the former cooling circuit according to the temperature in the latent heat storage unit and in the energy storage unit, thus avoiding too-intense cooling of the energy storage unit, thus ensuring high functional availability of the energy storage unit in a reliable manner, and enhancing the service life of the energy storage unit. The finned pipe cools the energy storage unit in cold environmental temperatures, so that the need for operating the latter cooling circuit and/or a refrigeration compressor at cold environmental temperatures is avoided.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for cooling an electrical energy storage unit of a vehicle.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic circuit diagram of a cooling arrangement with an electromotive drive for cooling circuits.    Cooling arrangement (10)    Cooling circuits (12, 26)    Electrical energy storage unit (14)    Latent heat storage unit (22)    Expansion valve (32)