fig10

Figure 10. (A) Synchrotron XRD data obtained in situ during (B) CV scans of 1 μm-thick Sn film electrode in K half-cell and (C) zoomed-in in-situ XRD patterns corresponding to region associated with phase transformation of primary interest during electrochemical potassiation of Sn^[125]. Copyright 2017, Electrochemical Society. (D) In-situ XRD results for hierarchical polyaspartic acid-modified SnS₂ nanosheets embedded into hollow N-doped carbon fibers (PASP@SnS₂@CN) electrode at different charge/discharge states^[126]. Copyright 2020, Wiley-VCH. (E) Schematic illustration of potassiation/depotassiation process in SnSe@C nanocomposite^[128]. Copyright 2021, Elsevier Ltd.