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High-entropy-doping effect in a rapid-charging Nb2O5 lithium-ion battery negative electrode

Author

Listed:
  • Junling Xu

    (Guangdong University of Technology)

  • Fuqiang Xie

    (Guangdong University of Technology)

  • Lipeng Huang

    (Guangdong University of Technology)

  • Nana Li

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR))

  • Shang Peng

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR))

  • Wensheng Ma

    (Shandong University)

  • Kai Zhang

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR))

  • Yanxue Wu

    (Guangdong University of Technology)

  • Lianyi Shao

    (Guangdong University of Technology)

  • Xiaoyan Shi

    (Guangdong University of Technology)

  • Jizhang Chen

    (Nanjing Forestry University)

  • Li Tao

    (Beijing Institute of Technology)

  • Kai Zhang

    (Nankai University)

  • Zhonghua Zhang

    (Shandong University)

  • Yonggang Wang

    (Fudan University)

  • Zhipeng Sun

    (Guangdong University of Technology)

Abstract

Doping is an important approach to tailor materials’ properties, yet the success of doping can depend on factors such as ionic radii similarities. For materials like silicon or perovskite, doping is not only facile to implement but can also enhance material properties. However, for host lattice structures like Nb2O5, doping without causing phase change is challenging. Here, we introduce a high-entropy-doping effect in Nb2O5. Unlike traditional doping approaches, high-entropy-doping minimizes the chemical properties of doping elements and focuses solely on their quantities. By high-entropizing the doping elements (selecting 10–15 from Mg, Ca, Sr, Ba, Cr, Mn, Fe, Co, Ni, Cu, Zn, Al, Ga, In, Sn, Sb, Y, Mo, La, Ce) and keeping them within a certain range of doping concentrations (1–3 mol%), a successful high-entropy-doping is achieved for Nb2O5 without phase change. The obtained high-entropy-doped (HED) Nb2O5 exhibits rapid-charging capabilities. At a rate of 40 A g−1, the HED-Nb2O5 delivers a capacity of 80 mAh g−1, whereas the undoped Nb2O5 fails to exceed 25 mAh g−1.

Suggested Citation

  • Junling Xu & Fuqiang Xie & Lipeng Huang & Nana Li & Shang Peng & Wensheng Ma & Kai Zhang & Yanxue Wu & Lianyi Shao & Xiaoyan Shi & Jizhang Chen & Li Tao & Kai Zhang & Zhonghua Zhang & Yonggang Wang & , 2025. "High-entropy-doping effect in a rapid-charging Nb2O5 lithium-ion battery negative electrode," Nature Communications, Nature, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-60186-6
    DOI: 10.1038/s41467-025-60186-6
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    References listed on IDEAS

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