ABSTRACT Aqueous zinc metal batteries garner widespread attention and hold promise for large‐scale energy storage due to their high theoretical capacity, low cost, and high safety. However, the disordered zinc dendrite growth, serious side reactions, and unstable solid‐electrolyte interface (SEI) have hindered their practical applications. Herein, we introduce Buddleia yellow (BY) as an electrolyte additive to synergistically regulate the interfacial electric field and ion concentration field. This strategy significantly ameliorates the hydrogen evolution reaction, by‐product accumulation, and dendrite growth, improving zinc utilization. The Zn//Zn cells attains a cycle life of 3000 h, and remains stable for 400 h and 250 h at depth of discharge (DOD) of 34.2% and 85.5%, respectively. The Zn//Cu cell sustains operation after 2000 cycles with a coulombic efficiency of 99.8%. The as‐assembled Zn//NaVO full cells demonstrate exceptional cyclabilities, enduring 500 and 1500 cycles at 1 A g −1 and 2 A g −1 , respectively, while maintaining discharge specific capacities of 205.2 and 138.5 mAh g −1 under stringent conditions of low N/P and E/C ratios. This work illuminates the pivotal role of the synergistic regulation of surface charge and ionic behavior on interfacial stability, and establishes an effective approach for high‐performance aqueous energy storage systems.
Li et al. (2026) studied this question.