For battery-driven vehicles, a trade-off exists between mileage and air-conditioning. Air-conditioning, namely heating, cooling and dehumidification, has to be provided by electrical energy from the battery, since engine power and waste heat are not availa-ble. Nowadays, air-conditioning is provided by an electrical heat pump in heating and cooling mode. To increase the efficiency of the heat ... [Show full abstract] pump, we propose a hybrid sys-tem, consisting of a heat pump and a desiccant unit. The desiccant unit is used as a latent thermal storage unit. The potential of the proposed concept is analyzed by dy-namic simulations. In summer, the electricity consumption for cooling can be reduced by 45 % using the hybrid system instead of a single heat pump in cooling mode. In winter, the hybrid system allows for higher ratio of cabin air, while maintaining a low water loading inside the cabin to prevent fogging. This higher ratio of cabin air reduc-es the electricity consumption in winter by up to 34 %. The highest reductions can be achieved for the case of simultaneous dehumidification and heating, as it is often needed in spring and autumn. In this case, the hybrid system allows for electricity reductions of up to 75 %. For all cases, the hybrid system leads to a significant in-crease of possible mileage for a battery-driven vehicle.