Fig. 4 | Nature Communications

Fig. 4

From: Diatomite derived hierarchical hybrid anode for high performance all-solid-state lithium metal batteries

Fig. 4

Morphological and structural characterizations of PEO-DLSL and PEO-Li-foil electrode at different states. a SEM image showing the DF-Si-Li0.8 microparticles after a thin layer of PEO-SPE coating (scale bar = 50 μm). b SEM image demonstrating the flat surface morphology of the PEO-DLSL electrode (scale bar = 20 μm). The inset is the photograph of the as-fabricated composite anode. ce Cross-sectional SEM images of pristine PEO-DLSL electrode (c), after 4 mAh cm−2 of Li stripping (d), and 4 mAh cm−2 of plating Li back (e). The current density was set at 0.5 mA cm−2 for all of the above characterizations (scale bar = 200 μm). fh The corresponding magnified SEM images of the electrode from c to e, showing the morphologies at the interface of the PEO-DLSL electrode and PEO-SPE (scale bar = 5 μm). ik, Cross-sectional SEM images showing the morphologies at the interfaces of Li foil and PEO-SPE (scale bar = 20 μm). The intimal surface of Li foil is smooth (i). After 4 mAh cm−2 of Li stripping out, a rough Li-foil surface could be observed (j). When 4 mAh cm−2 of Li was plated back, a layer of deposited Li (~17 μm) appeared at the interface with pores and cracks (k)

Back to article page