Figure 4: High-resolution TEM (HR-TEM)/STEM images and XPS depth profile of lithiated Si/graphene-SeS2/CDC full cell after 1,000 cycles. | Nature Communications

Figure 4: High-resolution TEM (HR-TEM)/STEM images and XPS depth profile of lithiated Si/graphene-SeS2/CDC full cell after 1,000 cycles.

From: A stable lithiated silicon–chalcogen battery via synergetic chemical coupling between silicon and selenium

Figure 4

HR-TEM bright-field images of (a) pristine and (b) cycled lithiated Si/graphene anode. (c) Highly magnified TEM image of b. (d) XPS surface analysis for C1s of the cycled lithiated Si/graphene electrode. (e) STEM/atomic mapping of cycled lithiated Si/graphene anode for silicon (Si), carbon (C) and selenium (Se). (f) XPS surface depth profile of the cycled lithiated Si/graphene anode. Scale bars, 2 μm (a), 100 nm (b), 20 nm (c) and 200 nm (e).

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