Figure 4: Impact of CV premodulation.
From: A reversible dendrite-free high-areal-capacity lithium metal electrode
(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.
