Figure 1 (IMAGE) Tohoku University Caption An illustration of croconic acid and an image of a high-voltage environmentally friendly organic lithium-ion batteries. Credit Yuto Katsuyama et al. Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. 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.