Journal of Inorganic Materials, Volume. 40, Issue 5, 497(2025)

Structural Evolution and Electrochemical Performance of Na4FexP4O12+x/C Cathode Materials for Sodium-ion Batteries

Junchi WAN, Lulu DU*, Yongshang ZHANG, Lin LI, Jiande LIU, and Linsen ZHANG*
Author Affiliations
  • School of New Energy, Zhengzhou University of Light Industry, Zhengzhou 450001, China
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    Figures & Tables(11)
    XRD patterns of Na4FexP4O12+x/C materials
    (a) FT-IR spectrum, (b) Raman spectrum, (c) TG curve, and (d) Fe2p XPS spectrum of Na4Fe3.1P4O15.1/C material
    (a-c) SEM images, (d-f) TEM images and (g) EDS elemental mappings of Na4Fe3.1P4O15.1/C material
    CV curves of Na4FexP4O12+x/C materials
    Electrochemical performance of SIBs with Na4FexP4O12+x/C as cathodes
    Performance of SIBs with Na4Fe3.1P4O15.1/C as cathodes
    Electrochemical performance of Na4Fe3.1P4O15.1/C as cathodes of SIBs
    S1 Raman spectra of Na4FexP4O12+x/C materials
    S2 TG curves of Na4FexP4O12+x/C materials
    S3 SEM images of Na4FexP4O12+x/C materials
    • Table 1. Cycle performance comparison of polyanionic cathode materials of sodium-ion batteries in this work and literature[S1-S6]

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      Table 1. Cycle performance comparison of polyanionic cathode materials of sodium-ion batteries in this work and literature[S1-S6]

      MaterialInitial discharge capacity/(mAh·g-1) (Reversible capacity/(mAh·g-1))/cycle number Capacity retentionRef.
      Na4Fe3.1P4O15.1/C102.8101.2/200; 95.0/50098.8%; 92.4%This work
      Na4Fe2.9Mn0.14(PO4)2(P2O7)@C94.592.1/10097.4%[S1]
      Na4Fe3(PO4)2(P2O7)/C95.390/10094.7%[S2]
      NaNi0.4Fe0.2Mn0.4O210070/10070%[S3]
      Na4Fe3(PO4)2(P2O7)@C/Ti3C2Tx93.491.1/20097.5%[S4]
      Na3V2(PO4)3/C10294/50092.1%[S5]
      Na0.44MnO2/C11474.1/100065%[S6]
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    Junchi WAN, Lulu DU, Yongshang ZHANG, Lin LI, Jiande LIU, Linsen ZHANG. Structural Evolution and Electrochemical Performance of Na4FexP4O12+x/C Cathode Materials for Sodium-ion Batteries [J]. Journal of Inorganic Materials, 2025, 40(5): 497

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    Paper Information

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    Received: Nov. 20, 2024

    Accepted: --

    Published Online: Sep. 2, 2025

    The Author Email: Lulu DU (2024007@zzuli.edu.cn), Linsen ZHANG (hnzhanglinsen@163.com)

    DOI:10.15541/jim20240490

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