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<p>The rapidly rising global demand for energy has driven research into high-performance lithium-ion battery electrode materials. Polyoxometalates (POMs) are versatile functional materials with diverse structures and multi-electron redox properties, showing great application potential in lithium-ion battery systems. Nevertheless, intrinsic defects including poor electronic conductivity, particle agglomeration and dissolution in electrolytes severely restrict their practical applications. Fabricating POM composites with functional supports is an effective approach to address these problems and exploit the full lithium-storage capacity of POMs. In this review, we systematically summarize the recent advances of pristine POMs and their composite electrodes, including POM/carbon, POM/conductive polymer, POM/MOF, and POM-based organic-inorganic supramolecular composites. The corresponding modification strategies and performance enhancement mechanisms of each category are discussed in detail. Finally, the current challenges and future development prospects of POM-based lithium-ion battery materials are analyzed, which are expected to provide valuable references for the rational design and practical application of advanced POM electrode materials.</p>

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Polyoxometalates-based composites: design, modification strategies and electrochemical performance for lithium-ion batteries

  • 期刊论文

  • 发表日期：

    2026年7月22日

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  • Lifei Lian,
  • Hanbin Hu

摘要

The rapidly rising global demand for energy has driven research into high-performance lithium-ion battery electrode materials. Polyoxometalates (POMs) are versatile functional materials with diverse structures and multi-electron redox properties, showing great application potential in lithium-ion battery systems. Nevertheless, intrinsic defects including poor electronic conductivity, particle agglomeration and dissolution in electrolytes severely restrict their practical applications. Fabricating POM composites with functional supports is an effective approach to address these problems and exploit the full lithium-storage capacity of POMs. In this review, we systematically summarize the recent advances of pristine POMs and their composite electrodes, including POM/carbon, POM/conductive polymer, POM/MOF, and POM-based organic-inorganic supramolecular composites. The corresponding modification strategies and performance enhancement mechanisms of each category are discussed in detail. Finally, the current challenges and future development prospects of POM-based lithium-ion battery materials are analyzed, which are expected to provide valuable references for the rational design and practical application of advanced POM electrode materials.