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. 2023 Jul 22;14:4435. doi: 10.1038/s41467-023-40178-0

Fig. 5. Investigation of the Zn2+ storage mechanism of the Zn/CPZ-H//MnO2 full cell.

Fig. 5

a Ex situ XRD patterns of a Zn/CPZ-H//MnO2 full cell at various voltages. Ex situ high-resolution XPS spectra of b Mn 2p, c Zn 2p, d O 1s, and e N 1s at various charge–discharge statuses. f, g In situ Raman spectrum of a Zn/CPZ-H//MnO2 full cell. h Schematic illustration of reversible Zn2+ intercalation/de-intercalation in a MnO2 cathode during an electrochemical process.