Retraction Note to: Capacity balancing for vanadium redox flow batteries through electrolyte overflow

The authors have retracted this article [1] because new results have shown that the assumption of a hydraulic convection through the membrane was not correct. It is very likely that the membrane used for the experiments in this article was damaged. As a result, a part of the determined model parameters and the simulation results changed after evaluation of new experimental results. The authors intend to publish a corrected version of their findings. All authors agree to this retraction.