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. 2020 Mar 6;6(10):eaaz3112. doi: 10.1126/sciadv.aaz3112

Fig. 4. Cryo-TEM study on the anode structure.

Fig. 4

(A) Morphology of Li plated on a bare Cu grid. (B and C) Morphology of Li plated on the NMMF@C-modified Cu grid. (D) Elemental mapping images of the Na, Mg, Mn, and F. (E) HRTEM and related FFT images of the SEI formed on bare Cu grid [corresponding to the white rectangular area in (A)], E (1) and E (2) correspond to regions (1) and (2) in (E), respectively. (F) HRTEM image of the SEI formed on NMMF@C-modified Cu grid [corresponding to the white rectangular area in (B)], F (1), F (2), and F (3) correspond to regions (1), (2), and (3) in (F), respectively. (G) FFT data from the image of (F), confirming the existence of LiF in the SEI layer.