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 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,…

• NN
  National Natural Science Foundation of China

  Award: 62005051
• MO
  Ministry of Education, India
• NU
  Nankai University
• BI
  Beijing Institute of Technology
• GS
  Guangdong Science and Technology Department

  Award: 2023A1515110099
• GU
  Guangdong University of Technology

  Award: 263113491
• GM
  Guangzhou Municipal Science and Technology Bureau
• GM
  Guangzhou Municipal Science and Technology Project

  Award: 2023A04J1600
• NK
  National Key Research and Development Program of China

  Award: 2023YFB3208002