Illustration showing the atomic structure of solid-electrolyte Na3PS4 with channels for Na+ ions (purple) between PS43- polyanions (orange). The black arrows denote the coupled motions of traveling sodium ions with the group vibrations of the host structure, involving twists of tetrahedral polyanions similar to that of a paddlewheel. Credit: Olivier Delaire, Duke University
Materials scientists at Duke University have revealed paddlewheel-like molecular dynamics that help push sodium ions through a quickly evolving class of solid-state batteries. The insights should guide researchers in their pursuit of a new generation of sodium-ion batteries to replace lithium-ion technology in a wide …
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