Reversible aqueous Zn battery anode enabled by a stable complexation adsorbent interface

Abstract Rechargeable aqueous Zn batteries (RAZBs) are highly promising for grid‐scale energy storage systems. Nevertheless, strong water molecule adsorption on electrode provokes undesired corrosion reactions and polarization/dendrite growth, restricting the reversibility of anode commercialization RAZBs. Herein, ethylenediamine tetraacetic acid (EDTA), a typical compounding ingredient, was applied in ZnSO 4 electrolyte to replace adsorbed molecules surface enabled stable complexation adsorbent interface. The chemically EDTA layer reduced direct contact between H 2 O metallic Zn, rate more than half. Moreover, such interface featuring abundant oxygen/nitrogen‐based functional groups regulated deposition kinetics promoted uniform plating. As consequence, highly‐reversible stripping/plating behavior 5000 h under harsh dynamic measurement that combining eletrochemical cycling at 1 mA cm −2 0.5 mAh 72 resting 24 h. effectiveness also verified MnO ||Zn full cells. chemistry demonstrated this study opened up new avenues design low‐cost reversible metal electrodes towards next‐generation image