High-entropy-doping effect in a rapid-charging Nb2O5 lithium-ion battery negative electrode
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 Nb<sub>2</sub>O<sub>5</sub>, doping without causing phase change is challenging. Here, we introduce a high-entropy-doping effect in Nb<sub>2</sub>O<sub>5</sub>. 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 <sub>mol</sub>%), a successful high-entropy-doping is achieved for Nb<sub>2</sub>O<sub>5</sub> without phase change. The obtained high-entropy-doped (HED) Nb<sub>2</sub>O<sub>5</sub> exhibits rapid-charging capabilities. At a rate of 40 A g<sup>-1</sup>, the HED-Nb<sub>2</sub>O<sub>5</sub> delivers a capacity of 80 mAh g<sup>-1</sup>, whereas the undoped Nb<sub>2</sub>O<sub>5</sub> fails to exceed 25 mAh g<sup>-1</sup>.
Authors
- Wensheng Ma
- Fuqiang Xie
- Jizhang Chen (ORCID: https://orcid.org/0000-0002-2926-1090)
- Yanxue Wu (ORCID: https://orcid.org/0000-0001-6266-0862)
- Zhipeng Sun (ORCID: https://orcid.org/0000-0002-8202-6911)
- Xiaoyan Shi (ORCID: https://orcid.org/0000-0003-4825-8732)
- Lianyi Shao (ORCID: https://orcid.org/0000-0002-4683-0419)
- Lipeng Huang
- Kai Zhang (ORCID: https://orcid.org/0000-0001-8038-745X)
- Zhonghua Zhang (ORCID: https://orcid.org/0000-0002-2883-4459)
- Li Tao (ORCID: https://orcid.org/0000-0002-7757-1149)
- Nana Li (ORCID: https://orcid.org/0000-0003-2510-5952)
- Yonggang Wang (ORCID: https://orcid.org/0000-0002-2447-4679)
- Junling Xu (ORCID: https://orcid.org/0000-0001-9811-7706)
Institutions
- Beijing Institute of Technology (CN)
- Guangdong University of Technology (CN)
- Shandong University (CN)
- Nanjing Forestry University (CN)
- Nankai University (CN)
- China Guangzhou Analysis and Testing Center (CN)
- Center for High Pressure Science and Technology Advanced Research (CN)
- Collaborative Innovation Center of Chemistry for Energy Materials (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-05-29
- DOI
- https://doi.org/10.1038/s41467-025-60186-6
- Citations
- 57
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 41.63
Funders
- National Natural Science Foundation of China
- Ministry of Education, India
- Nankai University
- Beijing Institute of Technology
- Guangdong Science and Technology Department
- Guangdong University of Technology
- Guangzhou Municipal Science and Technology Bureau
- Guangzhou Municipal Science and Technology Project
- National Key Research and Development Program of China