fig7

Figure 7. Electrochemical performance of cells with SbF3 additive. (A) Cross-sectional SEM and EDS mappings of cycled Na metal in the electrolyte with 1% SbF3 additive; (B) Testing in symmetric Na||Na cells. Nyquist plots for Na3V2(PO4)3/Na cells with different electrolytes after (C) three cycles and (D) 20 cycles. Reproduced from ref[84], Copyright 2020 Elsevier. EDS: Energy dispersive X-ray spectroscopy; SEM: scanning electron microscopy.