Carbonate Solvents and Ionic Liquid Mixtures as an Electrolyte to Improve Cell Safety in Sodium-Ion Batteries

Figure 6

(a) 1^st discharge capacity of half-cell (−) Na | EC-PC (1 : 1) + x wt.% EMI-TFSI + 1 M NaTFSI | hard carbon and (b) cycling discharge capacity as a function of cycle number at C/10 rate.

(a)

(b)