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Aspartame Endowed ZnO-Based Self-Healing Solid Electrolyte Interface Film for Long-Cycling and Wide-Temperature Aqueous Zn-Ion Batteries

  • Yunyu Shi
  • , Yingkang Liu
  • , Ruirui Chang
  • , Guilin Zhang
  • , Yuqing Rang
  • , Zheng Long Xu
  • , Qi Meng
  • , Penghui Cao
  • , Xiangyang Zhou
  • , Jingjing Tang*
  • , Juan Yang*
  • *Corresponding author for this work
  • Central South University
  • Hong Kong Polytechnic University
  • Changsha University of Science and Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Aspartame additive in electrolyte enables the in situ formation of ZnO-based solid electrolyte interphase, enhancing Zn anode corrosion resistance and stability with excellent self-healing capabilities. Zn║Zn symmetric cells with APM-modified electrolyte operate stably for 6,400 h at − 5 °C, 10,330 h at 25 °C, and 2,250 h at 40 °C, with a high DOD of 85.2%. Achieves 99.59% Coulombic efficiency, suppresses dendrite growth, and maintains 150 mAh g−1 capacity after 1,750 cycles in NH4+-V2O5 full cells.

Original languageEnglish
Article number254
JournalNano-Micro Letters
Volume17
Issue number1
DOIs
StatePublished - Dec 2025
Externally publishedYes

Keywords

  • Aqueous Zn-ion batteries
  • Aspartame additives
  • Long cycle life
  • Self-healing ZnO-based SEI film
  • Wide-temperature operation

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