fig5

Figure 5. (A) Electrochemical impedance spectroscopy spectra of Mg strips immersed in different WSG-incorporated agar gel electrolytes^[54]. (B) Discharge performance of Mg-air batteries with different WSG-incorporated agar gel electrolytes at the current density of 11.11 mA·cm^-2[54]. (C) Discharge curves of Mg-air batteries applying dual-layer gel and hydrogel electrolytes^[55]. (D) Specific capacity and energy density of Mg-air batteries using dual-layer gel and hydrogel electrolytes^[55]. (E) Schematic diagram of the mechanism of how the dual-layer gel electrolyte protects the Mg anode from corrosion, indicating the needle-like discharge products formed on the anode during discharge, which provide fresh active Mg^[55]. Reproduced from Refs.^[54,55] with permission from Springer Nature and Wiley, respectively.