石榴石型 Li7La3Zr2O12 固态电解质离子电导率 及电极界面问题研究进展.

Garnet-type Li7La3Zr2O12（LLZO） solid electrolytes have become the key materials for solid-state lithium batteries due to their high safety and stability to lithium metal. However, the practical application of LLZO based solid-state batteries is limited by the problems of the conductivity of garnet solid electrolyte ions and the high interface resistance caused by poor solid-solid interface contact. From the perspective of garnet LLZO structure, this paper discusses the lithium ion transport mechanism and reviews the strategies and latest achievements to improve ion conductivity. Aiming at the unavoidable interface problems of solid-state lithium batteries, the specific methods of optimizing the interface are summarized from the contact between the LLZO solid-state electrolytes and the solid-state electrodes. Finally, future research directions for garnet-type solid electrolytes are proposed to promote their development and application in all-solid-state lithium batteries. [ABSTRACT FROM AUTHOR]