Stable Sulfur cathode for Li-S batteries (IMAGE) Drexel University Caption For years scientists have been trying to stabilize the reaction inside Li-S battery to physically contain performance-sapping polysulfides, but most attempts have created other complications, such as adding weight or expensive materials to the battery or adding several complicated processing steps. A new approach, devised by researchers in Drexel's College of Engineering, can hold polysulfides in place, maintaining the battery's impressive stamina, while reducing the overall weight and the time required to produce them. Credit Drexel University Usage Restrictions None 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.