<p>Vanadium oxides facilitate the reversible intercalation and deintercalation of zinc ions, which is essential for achieving high-performance energy storage devices. Consequently, they are considered promising cathode materials for aqueous zinc-ion batteries (AZIBs). However, a significant challenge associated with vanadium-based materials in AZIBs is the dissolution of vanadium species. This phenomenon occurs during battery operation when vanadium dissolves into the electrolyte, resulting in the loss of active material and a gradual decline in battery performance over time. As aqueous zinc-ion batteries gain increasing prominence, the issue of vanadium dissolution has attracted considerable attention. To ensure the stable application of vanadium oxide materials in AZIBs, it is imperative to develop effective suppression strategies. In this context, this paper first introduces the crystal structures of several common vanadium oxides and provides an in-depth analysis of the dissolution mechanism of vanadium in AZIBs. Subsequently, this paper proposes various suppression strategies from three perspectives: electrolyte optimization, cathode material modification, and separator enhancement. Additionally, the potential of cathode materials and separators as mainstream suppression strategies is also discussed.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Vanadium dissolution inhibition strategy for vanadium oxide materials in aqueous zinc-ion batteries

  • Chengyi Hu,
  • Junyang Dan,
  • Zideng Zhou,
  • Meixin Li,
  • Jiayu Jiang,
  • Haolun Ma,
  • Jingyu Xiong,
  • Bingbing Hu,
  • Hao Luo

摘要

Vanadium oxides facilitate the reversible intercalation and deintercalation of zinc ions, which is essential for achieving high-performance energy storage devices. Consequently, they are considered promising cathode materials for aqueous zinc-ion batteries (AZIBs). However, a significant challenge associated with vanadium-based materials in AZIBs is the dissolution of vanadium species. This phenomenon occurs during battery operation when vanadium dissolves into the electrolyte, resulting in the loss of active material and a gradual decline in battery performance over time. As aqueous zinc-ion batteries gain increasing prominence, the issue of vanadium dissolution has attracted considerable attention. To ensure the stable application of vanadium oxide materials in AZIBs, it is imperative to develop effective suppression strategies. In this context, this paper first introduces the crystal structures of several common vanadium oxides and provides an in-depth analysis of the dissolution mechanism of vanadium in AZIBs. Subsequently, this paper proposes various suppression strategies from three perspectives: electrolyte optimization, cathode material modification, and separator enhancement. Additionally, the potential of cathode materials and separators as mainstream suppression strategies is also discussed.