V for 30m ZnCl2 vs 1.2 V for 3M ZnSO4) with no significant water decomposition. Plating-stripping tests on symmetric zinc foil cells indicate that the WISE electrolyte hampers the formation of dendrites and inert byproducts, stabilizing the zinc anode for > 200 h at a high current density of 10 mA cm -2 (Figure ). The cycling stability of symmetric cells were further extended with C@Zn electrodes, as presented in Figure .