TU Graz researcher team with sample (IMAGE) Graz University of Technology Caption Daniel Knez holds a sample of the battery material with tweezers. In the background (from left) Werner Grogger, Nikola Šimić, Anna Jodlbauer and Gerald Kothleitner. Credit Lunghammer - TU Graz Usage Restrictions This image may only be used in context with the content of this presse release. 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.