Researchers from the Chinese Academy of Sciences and Delft University of Technology (TU Delft) have developed a method to predict the atomic structure of sodium-ion batteries. Until now, this was impossible even with the best supercomputers. The findings can significantly speed up research into sodium-ion batteries. As a result, this type of battery can become a serious technology next to the popular Li-ion batteries found in our smartphones, laptops and electric cars. The researchers have published their findings in the journal Science.