Flexible solid electrolytes for all-solid-state lithium batteries

Garnet-type solid electrolytes are attracting great interest due to high ionic conductivity and excellent electrochemical stability against Li metal. However, the thick electrolyte layer and rigid nature as well as poor interfacial contact are huge obstacles for its application in all-solid-state lithium batteries. Currently, researchers in China provide a promising strategy toward realizing 20 μm-thick flexible Li6.4La3Zr1.4Ta0.6O12-based solid electrolyte for high-performance all-solid-state lithium batteries.