Fig. 1: Working mechanism of the dual functionality of CsNO3 additive. | Nature Communications

Fig. 1: Working mechanism of the dual functionality of CsNO3 additive.

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

Fig. 1

a Schematic illustration of the concentration gradient development of the Cs+ and NO3− species when voltage is applied in a Li metal cell. b Cs L-3 edge spectra of NMC811 and Li metal after cycling in the electrolyte containing 3 wt% CsNO3 additive. c X-ray fluorescence (XRF) images showing the distribution of Cs species on the surface of NMC811 and Li metal after cycling in electrolyte (200 cycles) containing 3 wt% CsNO3 additives. d, e Show the N K-edge spectra of NMC811 and Li metal, respectively after cycling in electrolyte containing 3 wt% CsNO3 additive. The cycling was performed at C/2 rate (0.8 mA/cm2) in high N/P cells.

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