Charged and ready to go (IMAGE) University of Tokyo Caption By replacing problematic and scarce cobalt with safer and more abundant elements, the researchers mitigate some issues with current batteries. And as an extra bonus, the new battery chemistry leads to greater energy density for an equivalent weight and volume of battery, which could be very useful in applications such as electric cars. Credit ©2023 Yamada et al. CC-BY-ND Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.