Organic Waste for Sustainable Batteries (IMAGE) Karlsruher Institut für Technologie (KIT) Caption The new carbon-based material for sodium-ion batteries can be extracted from apples. Credit Photo: KIT/HIU 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.