Unveiling bulk-to-interface electrolyte regulation for ultralong-life Zn-ion batteries

, while Zn//Cu cells deliver a high Coulombic efficiency of 99.7% for ≈3000 cycles. Furthermore, Zn//polyaniline full cells show excellent rate performance and cycling stability. This study reveals the working mechanism of electrolyte additives and provides an effective strategy for developing high-performance AZIBs by additive design.