Toward Simultaneous Dense Zinc Deposition and Broken Side‐Reaction Loops in the Zn//V2O5 System

• DOI: 10.1002/ange.202318928
• Publication Date: 2024-01-08T15:23:45Z
• Authors: Huirong Wang; Anbin Zhou; Zhengqiang Hu; Xin Hu; Fengling Zhang; Zhihang Song; Yongxin Huang; Yanhua Cui; Yixiu Cui; Li Li; Feng Wu; Renjie Chen
• Keywords: Deposition

Abstract The Zn//V 2 O 5 system not only faces the incontrollable growth of zinc (Zn) dendrites, but also withstands cross‐talk effect by‐products produced from cathode side to Zn anode, inducing interelectrode talk and aggravating battery failure. To tackle these issues, we construct a rapid 2+ ‐conducting hydrogel electrolyte (R‐ZSO) achieve deposition modulation reaction inhibition in full cells. polymer matrix BN exhibit robust anchoring on SO 4 2− , accelerating migration enabling dense behavior. Therefore, Zn//Zn symmetric cells based R‐ZSO can operate stably for more than 1500 h, which is six times higher that employing blank electrolyte. More importantly, effectively decouples effects, thus breaking infinite loop reactions. As result, using this modified demonstrate stable operation over 1,000 cycles, with capacity loss rate 0.028 % per cycle. Our study provides promising gel chemistry, offers valuable guide construction high‐performance multifunctional aqueous Zn‐ion batteries.