Coupling novel Li7TaO6 surface buffering with bulk Ta-doping to achieve long-life sulfide-based all-solid-state lithium batteries

A coupling design of novel Li 7 TaO 6 surface buffer coating with bulk Ta-doping for the NCM811 cathode with controllable surface thickness is successfully synthesized by a simple and scalable method, demonstrating excellent long-life performance in sulfide-based ASSLBs.