Figure 3: In-situ TEM observation of the lithiation process of an MSS particle.

(a) Schematic figure of the in-situ TEM battery experiment. (b–e) TEM images and selected area electron diffraction patterns of the MSS particle at different lithiation states: (b) before lithiation; (c) 22 min of lithiation; (d) 40 min of lithiation; (e) 160 min of lithiation. Scale bar, 200 nm (b–e).