Fig. 3: Properties and functions study of SEI in situ formed on Zn surface in the electrolyte of TMP–40. | Nature Communications

Fig. 3: Properties and functions study of SEI in situ formed on Zn surface in the electrolyte of TMP–40.

From: Regulating interfacial reaction through electrolyte chemistry enables gradient interphase for low-temperature zinc metal batteries

Fig. 3: Properties and functions study of SEI in situ formed on Zn surface in the electrolyte of TMP–40.

Arrhenius curves and the activation energies of a Rct and b RSEI derived from the Nyquist plots of Zn||Zn cells with TMP–0 or TMP–40 electrolyte after 40 cycles. c Adsorption energy of Zn2+ with ZnF2 and Zn3(PO4)2. d Migration energy barrier of Zn2+ across ZnF2 and Zn3(PO4)2 interlayer. Electrochemical impedance spectra of Zn||Zn symmetric cells in e TMP–40 electrolyte and f TMP–0 electrolyte after different cycles at 25 °C. g Electrochemical impedance spectra comparison between ZOTH@Zn and ZnF2–Zn3(PO4)2@Zn in symmetric cells with TMP–40 electrolyte at −30 °C. h Zn2+ transference number test for ZnF2–Zn3(PO4)2@Zn in symmetric cells at −30 °C. i CV comparison between ZOTH@Zn||Ti and ZnF2–Zn3(PO4)2@Zn||Ti at −30 °C.

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