fig11

Figure 11. (A) In-situ optical microscopy visualization of bare Li (left column) and graphite fluoride-LiF-Li (right column) electrolyte interface in different time periods during cycling on symmetric cells (reproduced with permission from^[162]). Comparison between bare Li and Li/graphite interfacial behaviors with SSE pellet. SEM images of (B) Li-C/SSE and (C) bare Li/SSE interfaces and (D-G) elemental mappings of the Li-C/SSE interface (reproduced with permission from^[163]). (H) Cross-sectional SEM image and (I) high-magnification cross-sectional SEM image of Li-Mg alloy melted on the SSE and (J) corresponding elemental mapping by EDX at the interface (reproduced with permission from^[164]). (K) Schematic of molten Li wetting behavior for pure SSE and ALD-Al₂O₃-coated SSE, respectively, and l) SEM images of the SSE/Li metal interface [without ALD-Al₂O₃ coating (left) and with ALD-Al₂O₃ coating (right)] (reproduced with permission from^[165]).