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

Huirong Wang, Anbin Zhou, Zhengqiang Hu, Xin Hu, Fengling Zhang, Zhihang Song, Yongxin Huang*, Yanhua Cui, Yixiu Cui, Li Li, Feng Wu, Renjie Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

The Zn//V2O5 system not only faces the incontrollable growth of zinc (Zn) dendrites, but also withstands the cross-talk effect of by-products produced from the cathode side to the Zn anode, inducing interelectrode talk and aggravating battery failure. To tackle these issues, we construct a rapid Zn2+-conducting hydrogel electrolyte (R-ZSO) to achieve Zn deposition modulation and side reaction inhibition in Zn//V2O5 full cells. The polymer matrix and BN exhibit a robust anchoring effect on SO42−, accelerating Zn2+ migration and enabling dense Zn deposition behavior. Therefore, the Zn//Zn symmetric cells based on the R-ZSO electrolyte can operate stably for more than 1500 h, which is six times higher than that of cells employing the blank electrolyte. More importantly, the R-ZSO hydrogel electrolyte effectively decouples the cross-talk effects, thus breaking the infinite loop of side reactions. As a result, the Zn//V2O5 cells using this modified hydrogel electrolyte demonstrate stable operation over 1,000 cycles, with a capacity loss rate of only 0.028 % per cycle. Our study provides a promising gel chemistry, which offers a valuable guide for the construction of high-performance and multifunctional aqueous Zn-ion batteries.

Original languageEnglish
Article numbere202318928
JournalAngewandte Chemie - International Edition
Volume63
Issue number11
DOIs
Publication statusPublished - 11 Mar 2024

Keywords

  • Hydrogel Electrolyte
  • Interelectrode Talk
  • Rapid Zinc-Ion Conductive
  • Zn Deposition Regulation
  • Zn//VO Cells

Fingerprint

Dive into the research topics of 'Toward Simultaneous Dense Zinc Deposition and Broken Side-Reaction Loops in the Zn//V2O5 System'. Together they form a unique fingerprint.

Cite this

Wang, H., Zhou, A., Hu, Z., Hu, X., Zhang, F., Song, Z., Huang, Y., Cui, Y., Cui, Y., Li, L., Wu, F., & Chen, R. (2024). Toward Simultaneous Dense Zinc Deposition and Broken Side-Reaction Loops in the Zn//V2O5 System. Angewandte Chemie - International Edition, 63(11), Article e202318928. https://doi.org/10.1002/anie.202318928