iCeMS Hiroshi Kageyama Antiperovskites (IMAGE) Kyoto University Caption Soft anions, like sulfur ions (S2-), provide an ideal conduction path for sodium (Na+) and lithium (Li+) ions, with the hydride ions (H-) helping to stabilize the compound's structure. Credit Mindy Takamiya/Kyoto University iCeMS Usage Restrictions Please always display the 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.