Fig. 5: Li dendrite growth in the bare LLZTO and the PAA-modified LLZTO.
From: A flexible electron-blocking interfacial shield for dendrite-free solid lithium metal batteries

a Optical surface morphologies of an LLZTO pellet before and after cycling. b Top-view and c, d cross-sectional SEM images of an LLZTO pellet after short circuiting. e Optical surface morphologies of an LLZTO@EBS pellet before and after cycling. f Top-view SEM image of an LLZTO@EBS pellet after cycling at 0.2 mA cm−2 for 1000 h. g Cross-sectional SEM image of the LLZTO@EBS/Li interface, and h cross-sectional SEM image of an LLZTO@EBS pellet after cycling at 0.2 mA cm−2 for 1000 h.