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There is an immediate need for cathodes that are affordable, highly efficient, and durable to advance the commercial success of sodium ion batteries (SIBs). We describe a novel approach involving a ball-milling technique to create carbon-coated Na2FePO4F microspheres (C-NFPF@C). The C-NFPF@C material, endowed with a highly conductive carbon layer, showcases impressive electrochemical properties, including a significant reversible capacity of 115 mAh g−1 at 0.2 C, a durable cycle life maintaining 81% capacity after 3000 cycles at 5 C, and remarkable rate performance with 44 mAh g−1 at 50 C. The recent research suggests that the C-NFPF@C material is highly promising for use as a cathode in SIBs due to its effectiveness.

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Carbon-Coating Na2FePO4F Cathode with High Rate Capability and Cycling Stability for Sodium Ion Batteries

  • 会议论文

  • 发表日期：

    2025年

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  • Jiexin Zhang,
  • Xingyu Zhao,
  • Wenjie Liu,
  • Yi Ding

摘要

There is an immediate need for cathodes that are affordable, highly efficient, and durable to advance the commercial success of sodium ion batteries (SIBs). We describe a novel approach involving a ball-milling technique to create carbon-coated Na2FePO4F microspheres (C-NFPF@C). The C-NFPF@C material, endowed with a highly conductive carbon layer, showcases impressive electrochemical properties, including a significant reversible capacity of 115 mAh g−1 at 0.2 C, a durable cycle life maintaining 81% capacity after 3000 cycles at 5 C, and remarkable rate performance with 44 mAh g−1 at 50 C. The recent research suggests that the C-NFPF@C material is highly promising for use as a cathode in SIBs due to its effectiveness.