Flow Battery Diagrams (image) DOE/SLAC National Accelerator Laboratory Caption These diagrams compare Stanford/SLAC's new lithium-polysulfide flow battery design with conventional "redox" flow batteries. The new flow battery uses only one tank and pump and uses a simple coating instead of an expensive membrane to separate the anode and cathode. Credit Greg Stewart, SLAC National Accelerator Laboratory Usage Restrictions Please provide credit if possible. 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.