Figure 5.
(a) Schematic showing the SEI formed on the Na metal surface using NaPF6 in glymes. (b-d) Impedance spectra of Na metal anodes cycled using (b) 1 M NaPF6 in diglyme, (c) 1 M NaN(SO2CF3)2 in diglyme, and (d) 1 M NaPF6 in 1:1 v/v EC/DEC.
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