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<p>This study offers a thorough examination of the advancement of high-voltage lithium-ion capacitors (LICs), encompassing their classification, working principles, and components. It reviews the factors that influence the working voltage range of LICs and their electrochemical performances and stabilities when subjected to high-voltage conditions, containing the mechanisms of capacity deterioration, leakage current, self-discharge, and electrochemical kinetics characteristics of high-voltage LICs. Furthermore, the electrode interaction with electrolytes, the high-voltage resistance of cathode materials, and the methods for determining the stable working voltage range of LICs have been extensively discussed. This work reviews how these factors impact the energy density, power density, and energy storage state of LICs under high-voltage conditions, thus offering valuable insights for optimizing LIC design.</p>

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Recent advances in high-voltage lithium-ion capacitors

  • 期刊论文

  • 发表日期：

    2025年2月12日

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  • Dehong Xu,
  • Xiaohu Zhang,
  • Keliang Zhang,
  • Yongqin Han,
  • Xianzhong Sun,
  • Yanan Xu,
  • Chen Li,
  • Kai Wang,
  • Xiong Zhang,
  • Yanwei Ma

摘要

This study offers a thorough examination of the advancement of high-voltage lithium-ion capacitors (LICs), encompassing their classification, working principles, and components. It reviews the factors that influence the working voltage range of LICs and their electrochemical performances and stabilities when subjected to high-voltage conditions, containing the mechanisms of capacity deterioration, leakage current, self-discharge, and electrochemical kinetics characteristics of high-voltage LICs. Furthermore, the electrode interaction with electrolytes, the high-voltage resistance of cathode materials, and the methods for determining the stable working voltage range of LICs have been extensively discussed. This work reviews how these factors impact the energy density, power density, and energy storage state of LICs under high-voltage conditions, thus offering valuable insights for optimizing LIC design.