Trapping 3 (IMAGE) Rice University Caption Rice University engineers built lithium-ion batteries with silicon anodes and an alumina layer to protect cathodes from degrading. Credit Illustration courtesy of the Biswal Lab/Rice 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.