Fig. 2: Crystalline and amorphous components in the lithium metal interphase. | Nature Communications

Fig. 2: Crystalline and amorphous components in the lithium metal interphase.

From: An inorganic-rich but LiF-free interphase for fast charging and long cycle life lithium metal batteries

Fig. 2

a Crystalline components of the solid-electrolyte interphase (SEI) of Li metal revealed by synchrotron XRD and Rietveld refinement. The red is the fit and the blue is the XRD pattern for individual phases calculated from Rietveld refinement. b Amorphous components of the SEI revealed by PDF studies. The scattered plot is the measured PDF data, and the red is the PDF pattern calculated from the possible individual components of the SEI37. SEI species were characterized after 50 cycles in the baseline electrolyte and after 200 cycles in the electrolyte containing the CsNO3 additive. The cycling was performed at C/2 rate (0.8 mA/cm2) in high N/P cells. The color code for the atoms is the same in all subfigures: red: oxygen; blue: nitrogen; cyan: fluorine; brown: carbon; white: hydrogen; gold: lithium; dark yellow: cesium, light yellow: sulfur.

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