fig4

From: Challenges, strategies and prospects in interfaces between Li metal anode and polyether-based solid-state electrolytes

Figure 4. (A) Recognized crystalline grains of Li metal, Li₂O, Li₂CO₃, and LiOH in interface; (B) The corresponding FFT of (A), red circle: Li, 2.48 Å, yellow circle: Li₂O, 2.66 Å, blue circle: Li₂CO₃, 3.02 Å, white circle: LiOH, 4.35 Å; (C) Schematic diagram for the identified mosaic structure of interface.Figure 4A-C is reprinted with permission from Ref. [70], Copyright © 2020 Wiley. FFT: Fast Fourier transform; SPE: solid polymer electrolyte.