Chemical Research in Chinese Universities ›› 2021, Vol. 37 ›› Issue (2): 200-209.doi: 10.1007/s40242-021-0001-5

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Recent Progress on Modification Strategies of Alloy-based Anode Materials for Alkali-ion Batteries

WU Ying1, YAO Yu1, WANG Lifeng1, YU Yan1,2   

  1. 1. Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei 230026, P. R. China;
    2. Dalian National Laboratory for Clean Energy(DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
  • Received:2021-01-01 Online:2021-04-01 Published:2021-03-29
  • Contact: YU Yan E-mail:yanyumse@ustc.edu.cn
  • Supported by:
    This work was supported by the National Key R&D Program of China(No. 2018YFB0905400), the National Natural Science Foundation of China(Nos. U1910210, 51925207, 51872277, 22005292), the National Synchrotron Radiation Laboratory of China(No.KY2060000173), the Project of the China Postdoctoral Science Foundation(Nos.2019TQ0296, 2020M682012), the DNL Cooperation Fund, CAS(No.DNL180310), and the Fundamental Research Funds for the Central Universities of China(Nos. WK2060140026, WK2060000009).

Abstract: Alkali-ion batteries, including lithium-ion batteries(LIBs), sodium-ion batteries(NIBs) and potassium-ion batteries (KIBs), with alloy-based anodes exhibit huge potential in high energy density due to the natural abundance, high theoretical capacity as well as suitable operating voltages. However, the practical application is severely hindered by the huge volume variation based on the alloying mechanism and inferior conductivity, especially for red phosphorus(P) and silicon(Si) anodes, which induces poor rate capability and fast capacity decay. Herein, we will briefly review fundamental advantages and challenges of alloy-based anode materials. Then, effective modification strategies of alloy-based anode materials for boosting the performance would be emphasized and discussed. Finally, we will share our perspectives and some opportunities to obtain high-performance alloy-based anode materials for further application.

Key words: Alloy-based anode, Alkali-ion battery, Modification strategy