Figure 11.

2 m ZnSO4, 2 m Zn(BF4)2 aqueous electrolytes and ILZE: a) electrochemical window of water and [EMIm]BF4 IL; CV curves of Zn plating/stripping using three‐electrode configuration (stainless steel foil as working and Zn foil as reference and counter electrodes), b) hydrogen production during Zn plating/stripping process at a current density of 0.5 mA cm−2, and c) the surface morphology of metallic Zn foils after 300 cycles at 0.5 mA cm−2. Electrochemical performance of a Zn/CoHCF battery: d) cyclic stability at 4 A g−1 and e) rate performance in ILZE. Reproduced with permission.[ 78 ] Copyright 2020, Wiley‐VCH.