The Technical University of Delft is the oldest, largest and most comprehensive university of technology in the Netherlands. On a structural basis, TU Delft collaborates with other international research institutes and has partnerships with governments, industry partners and companies from the small and medium business sectors. TU Delft ranks 52nd on the 2019 QS World University Rankings overall, and ranks 13th worldwide among the field of Chemical Engineering. The research groups of David Vermaas and Willem Haverkort at TU Delft collaborate with Elestor in the MELODY project, for developing membrane-free H2-Br2 redox flow batteries. »