Fig. 6

In situ lithiation/delithiation behavior of AMPSi@C. a Schematic of in situ nanobattery configuration. b–g Time-resolved TEM images depicting the lithiation process of AMPSi@C electrode (Supplementary Movie 1). After full lithiation, AMPSi@C exhibits inward expansion and does not show cracks and pulverization. h–k In situ TEM images of AMPSi@C after different cycles (Supplementary Movie 2) showing a stable structure during repeated cycling. Scale bar for b–k = 200 nm