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Figure 2. Structure and composition of the Zn anodes after 20 cycles in Zn||Zn symmetric cells. SEM images for the Zn anodes cycled in (A) G4-based; (B) PC-based; and (C) DMF-based hybrid electrolytes; Insets of (A-C) showing the corresponding optical images of the Zn anodes; EDX mapping of Zn and For the Zn anodes cycled in (D) G4-based; (E) PC-based; (F) DMF-based; (G) XRD patterns of Zn anodes cycled in three hybrid electrolytes; XPS spectra of (H) Zn 2p_3/2 and (I) F 1s for Zn anodes cycled in three hybrid electrolytes. PC: Propylene carbonate; DMF: Dimethylformamide; SEM: Scanning electron microscope; XRD: X-ray diffraction; XPS: X-ray photoelectron spectrometer; EDX: Energy dispersive X-ray spectroscopy.