Adaptive No-Tip Distribution of Rich Charge-Density-Clusters Guiding Confinement Deposition with Repair Function toward Highly Reversible Zinc Anode

The plating/stripping behavior of Zn ions on the Zn anode, driven by an electric field, is a key process in determining the performance of aqueous zinc ion batteries (AZIBs). Process-induced unevenness of commercial Zn foils results in poor reversibility of Zn anodes. Herein, a self-healing dynamic anode/electrolyte interface is constructed by incorporating hydroxyl-rich alcohols with high charge density and zincophilicity into the original electrolyte. These alcohols selectively anchor on electron-poor sites in the charging state, inducing domain-limited deposition of Zn²⁺ to achieve a dense, uniform, and flat deposition state. As a result, a durable Zn anode with excellent electrochemical reversibility can be realized in practical cycling (average Coulombic efficiency of 99.5%). Even under deep plating/stripping conditions (5 mA cm⁻² and 5mAh cm⁻²), the modified electrolyte exhibits a remarkable repair effect on corroded Zn anodes that have been cycled in base electrolyte, extending the lifespan to over 1,020 h. This represents a 15.6-fold enhancement in lifespan compared to recycling in the base electrolyte. This strategy for electrolyte additive directly influences the design of ultra-long-life AZIBs and provides concrete concepts for the recovery of zinc anodes.