Fig. 6: Optimized SEI layer on the Li metal surface. | Nature Communications

Fig. 6: Optimized SEI layer on the Li metal surface.

From: Self-assembled hydrated copper coordination compounds as ionic conductors for room temperature solid-state batteries

Fig. 6

a 3D AFM image and b the corresponding force-separation curve of Li anode disassembled from Li/Li symmetric cell with Li-CuMH SSE. c F 1 s, N 1 s and C 1 s in-depth XPS spectra of SEI layers on Li anodes disassembled from Li/Li symmetric cells with Li-CuMH SSE. The raw data and fitted data plots are shown as red dotted lines and grey solid lines, respectively. d, e TOF-SIMS 3D reconstruction of LiF2−, C2H2O− and CO3− species of SEI layers on Li anodes disassembled from Li/Li symmetric cells with Li-CuMH SSE and liquid electrolyte. f, g Schematics of SEI composition affected by Li-CuMH SSE and liquid electrolyte.

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