A STORAGE TANK FOR A VEHICLE FOR STORING FLUIDS

The disclosure relates to a storage tank (1) for a vehicle (100) for storing fluids, comprising: - an inner envelope surface (10) defining an inner volume (12) for storing fluids, - at least one wall (20, 20', 20", 20‴) which is releasably attached to the inner envelope surface (10) and defines a fluid barrier for fluid in the inner volume (12), wherein the inner envelope surface (10) is cylinder-formed and wherein the at least one wall (20, 20', 20", 20‴) is associated with a radial plane of the cylinder-formed inner envelope surface (10), wherein the at least one wall (20, 20', 20", 20‴) is configured to be moved inside the inner volume (12) to change a volume size of the inner volume (12) and/or to change volume sizes of sub-volumes (120, 122, 124) of the inner volume (12). The disclosure also relates to a vehicle (100).