fig8

Figure 8. The effect of C60(NO2)6 additives on sodium metal anodes. (A) cycling performance of and (B) Nyquist plots for the Na/Na symmetric cells; (C) XPS spectra of cycled Na; (D) cycling performance of Na3V2(PO4)3/Na cells. Reproduced from ref[87], Copyright 2021 Elsevier. EC: Ethylene carbonate; PC: propylene carbonate; XPS: X-ray photoelectron spectroscopy.