Redox Flow Battery (IMAGE) University of Utah Caption This is a diagram of a redox flow battery. An energy source, in this case a solar panel, provides the energy to the central cell to charge the battery. The charge is held in tanks of electrolytes that are pumped back into the cell to discharge the battery. Credit Sharmila Samaroo/University of Michigan. Usage Restrictions Credit Sharmila Samaroo/University of Michigan. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.