Chinese Journal of Applied Chemistry ›› 2021, Vol. 38 ›› Issue (2): 170-180.DOI: 10.19894/j.issn.1000-0518.200243

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Potential High-Performance Anode Material for Potassium Ion Batteries:Antimony

CHENG Guang-Zeng, LIU Shuai*, WANG Huan-Lei*   

  1. School of Materials Science and Engineering, Ocean University of China, Qingdao 266000, China
  • Received:2020-08-13 Accepted:2020-10-16 Published:2021-02-01 Online:2021-04-10
  • Supported by:
    Shandong Provincial Key R&D Plan and the Public Welfare Special Program, China (No.2019GGX102038), the Fundamental Research Funds for the Central Universities (Nos.201822008, 201941010) and the Qingdao City Programs for Science and Technology Plan Projects (No.19-6-2-77-cg)

Abstract: In recent years, with the increasing demand for energy storage devices, potassium ion batteries have attracted more and more attention. The physical and chemical properties of potassium is similar to those of lithium, and the reserve of potassium in the earth's crust is abundant, so potassium ion battery has a promising prospect in the field of energy storage. However, due to the fact that the actual capacity of electrode materials is far less than the theoretical capacity, the performance of potassium ion battery is still inadequate. Metallic antimony has a high theoretical capacity and is widely investigated as electrodes. However, too large volume change during charging-discharging process leads to the poor stability. The structural stability can be improved by controlling the morphology, alloying and introducing carbon framework. In this paper, the research progress of antimony materials as anodes for potassium ion batteries is introduced, and the application of antimony electrode is prospected.

Key words: Potassium ion battery, Antimony anode, Alloying, Composite materials, Nanostructure

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