Fig. 1: Scheme and preparation of MoS2-coated Li metal.
From: 2D MoS2 as an efficient protective layer for lithium metal anodes in high-performance Li–S batteries

a, Schematics illustrating the fabrication method for a MoS2-coated Li anode via sputtering and subsequent lithiation. Left: direct MoS2 deposition to the surface of Li metal. Middle: lithiating the MoS2 layer through a symmetric cell configuration and cycling for 15 cycles (30 min charge/discharge per cycle) at 1 mA cm−2. Right: dismantling the symmetric cell to obtain the lithiated MoS2-coated Li electrode. b,c, Cross-section (b) and top view (c) SEM images of the as-deposited MoS2 on Li metal. The inset in c is a magnified view. (d) Top view SEM image of the lithiated MoS2 on Li-metal surface.