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. 2017 Apr 25;8:15106. doi: 10.1038/ncomms15106

Figure 4. Impact of CV premodulation.

Figure 4

(a) In situ morphology evolution and chronopotentiometric curves of Li|Cu cell using the LiFSI-2G4-50 vol% DOL at 5 mA cm−2 and ambient temperature under the CV premodulation in the first two cycles, where lithium electrodeposition and stripping time were fixed as 18 min (1.5 mAh cm−2). Scale bar, 100 μm. (b) CV of Li electrodeposition/stripping in the symmetrical Li|Li cell for 10 cycles using different electrolytes at 25 °C. The sweeping rate was 10 mV s−1. Impedance evolution of the symmetrical Li|Li cell with cycle number using (c) LiPF6-EC-DEC and (d) LiFSI-2G4-50 vol% DOL. (e) Evolutions of Rc,x and Rf,x for the symmetrical Li|Li cell using LiFSI-2G4-50 vol% DOL during and after the CV premodulation.