Lithium-Sulfur Battery (IMAGE) Drexel University Caption Researchers at Drexel University have created a sulfur cathode that does not react with carbonate electrolyte to produce polysulfides that are known to diminish battery performance. The discovery could pave the way for commercial viability of high-performing lithium-sulfur 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.