fig12

Figure 12. SEM images of (A) pristine solvate interlayer-modified Li₂S pellet and (B) interlayer-modified Li₂S pellet after ten cycles. EDS analysis shown in (A) and (B) (yellow rectangle regions). Comparing relative F content (F atoms from LiTFSI and TTE) at different regions can confirm the possible infiltration of the solvate across the pellet (reproduced with permission from^[119]). (C) TEM cross-sectional image for the interface of an ALD-Al₂O₃-coated SE with Ti protection layer. (D) EELS maps (Al, Li, O, overlap of Al and Li, and Ti, respectively) at the interfacial cross section (reproduced with permission from^[20]). Characterization of an SSB with LNTO-coated LiCoO₂ during the charge (E) and discharge (F) process by EIS, which was carried out after a 1 h charge and a 30 min rest (stacked Nyquist plots) and the galvanostatic charge was carried out at 0.1 C (reproduced with permission from^[196]).