Patrik Johansson (IMAGE) Chalmers University of Technology Caption "The material costs and environmental impacts that we envisage from our new concept are much lower than what we see today, making them feasible for large scale usage, such as solar cell parks, or storage of wind energy, for example," says Patrik Johansson, Professor at the Department of Physics at Chalmers. "Additionally, our new battery concept has twice the energy density compared with the aluminium batteries that are 'state of the art' today." Credit Henrik Sandsjö/Chalmers University of Technology Usage Restrictions With credit 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.