Nature Communications (Jan 2021)
Hydride-based antiperovskites with soft anionic sublattices as fast alkali ionic conductors
Abstract
Oxide-based lithium/sodium-rich antiperovskites are regarded as promising solid electrolytes. Here, authors report a series of antiperovskites with a soft lattice containing hydride (H–) and chalcogenide (S2–, Se2–, Te2–) anions, enabling the fast Li+ /Na+ transport assisted by rotational phonon modes.