Figure 1: Lithium electrodeposition onto Cu.
From: A reversible dendrite-free high-areal-capacity lithium metal electrode

(a) Cyclic voltammograms of Li electrodeposition/stripping in various electrolytes using Cu as the working electrode and Li as the reference and counter electrode for five cycles. (b) The electrodeposition behaviour of lithium in the 30th sweep. (c) Schematic representation of in situ visualization cell for observing the morphology of lithium electrodeposits. (d–f) Deposition time-dependent (2.5, 10, 60 and 90 min) morphology evolution of lithium electrodeposits at 1 mA cm−2 and ambient temperature in the (d) LiPF6-EC-DEC, (e) LiFSI-2G4-50 vol% DOL and (f) LiFSI-2G4-50 vol% DOL after the CV premodulation, respectively. Scale bar, 100 μm.