Monoclinic gamma-sulfur cathode (IMAGE) Drexel University Caption Researchers at Drexel University have developed a sulfur cathode that functions in commercially used carbonate electrolyte and can improve on the capacity and lifespan of the highest performing batteries. Credit Drexel University Usage Restrictions None License Original 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.