Fig. 7: Electrochemical mechanism of PF6− intercalation/deintercalation.
From: A synergistic exploitation to produce high-voltage quasi-solid-state lithium metal batteries

a, b Intensity contour maps obtained from the in situ XRD patterns of a Li|1 M LiPF6-EC: EMC | graphite and b Li|HGPE | graphite cells at 0.05 C. c, d TEM images of the KS6 graphite cathodes from c Li|1 M LiPF6-EC: EMC | KS6 graphite and d Li|HGPE | KS6 graphite cells after one cycle at 0.05 C. e, f O 1 s and F 1 s XPS in-depth spectra of the KS6 graphite cathodes obtained from e Li|1 M LiPF6-EC: EMC | KS6 graphite and f Li|HGPE | KS6 graphite cells after one cycle at 0.05 C. Scale bars: 5 nm in Fig. 7c, d; 1 nm in the inset of Fig. 7c, d.