Electrolyte design for rechargeable anion shuttle batteries

Yao Wang, Xu Yang, Zhijia Zhang, Xia Hu, Yuefeng Meng, Xia Wang, Dong Zhou, Hao Liu, Baohua Li, Guoxiu Wang

Research output: Contribution to journalReview articlepeer-review

Abstract

As an emerging new type of battery chemistry, the anion shuttle battery (ASB), based on the shuttling and storage of anions, is considered a sustainable alternative to gigawatt-scale energy storage due to the associated resource abundance, low cost, high safety, and high energy density. Although significant progress has been achieved, practical applications of ASBs are still hindered by tough challenges, such as short lifetime, limited reversible capacity, and low Coulombic efficiency. Therefore, it is very necessary to design and explore new electrolyte systems with high electrochemical/chemical stability, sufficient compatibility towards electrodes, and excellent kinetics/reversibility for anion electrochemical reactions. Here, we review the recent achievements and main challenges in developing electrolytes for ASBs, which include solid, non-aqueous, and aqueous electrolytes. We mainly focus on the unique properties and basic principles of designing these electrolytes, and their various performance parameters. Perspectives on design strategies for ASB electrolytes are also presented, which could facilitate the development of advanced ASBs for grid-scale energy storage.

Original languageEnglish
Pages (from-to)573-590
Number of pages18
JournaleScience
Volume2
Issue number6
DOIs
Publication statusPublished - Nov 2022

Keywords

  • Anion shuttle batteries
  • Electrochemical stability
  • Electrolytes
  • Grid-scale energy storage
  • Interfacial compatibility

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