Journal of Chemistry and Chemical Research

Solid-state electrolytes are widely regarded as key materials for suppressing lithium dendrite growth. However, they still face issues of interface instability and lithium dendrite penetration in practical applications. To gain an in-depth understanding of the growth mechanism of lithium dendrites at the solid-state electrolyte-electrode interface, this paper focuses on the application and innovation of in-situ observation technologies in this field. By constructing representative in-situ battery devices and combining various observation methods such as transmission electron microscopy (TEM) and X-ray tomography, the initiation sites, propagation paths of lithium dendrites, and their relationships with interface morphology and stress state are revealed. This study not only provides direct evidence for the lithium dendrite suppression mechanism but also offers an experimental basis for the design optimization of solid-state batteries, promoting the practical development of high-safety solid-state lithium batteries.

Solid-state electrolyte; Lithium dendrite; In-situ observation; Interface stability; Solid-state battery