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<p>The rapid development of vanadium redox flow batteries has recently boosted research in methods to obtain high-purity vanadium pentoxide, the active material of battery electrolytes. Here, we review techniques for producing high-purity vanadium pentoxide with emphasis on methods published in Chinese that are not well-known by Western academia. We describe purification methods, chlorination, and eco-friendly processes. Purification can be done by precipitation, solvent extraction, and ion exchange. We propose three viable approaches for industrialized applications.</p>

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Preparation of high-purity vanadium pentoxide: a review

  • 期刊论文

  • 发表日期：

    2025年2月14日

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  • Yun Guo,
  • Jie Huang,
  • Jun−Kai Feng

摘要

The rapid development of vanadium redox flow batteries has recently boosted research in methods to obtain high-purity vanadium pentoxide, the active material of battery electrolytes. Here, we review techniques for producing high-purity vanadium pentoxide with emphasis on methods published in Chinese that are not well-known by Western academia. We describe purification methods, chlorination, and eco-friendly processes. Purification can be done by precipitation, solvent extraction, and ion exchange. We propose three viable approaches for industrialized applications.