Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (7): 1418.doi: 10.7503/cjcu20190169

• Physical Chemistry • Previous Articles     Next Articles

Synthesis and Electrochemical Performance of Carbon-coated FeF2 Nanocomposite

YAO Fengnan, LI Yu, FENG Wei*()   

  1. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
  • Received:2019-03-20 Online:2019-06-28 Published:2019-07-09
  • Contact: FENG Wei E-mail:weifeng@tju.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.51773147) and the National Natural Science Funds for Distinguished Young Scholars, China(No.51425306).

Abstract:

A hybrid nanostructure of FeF2 coated by carbon was synthesized through thermal decomposition at high temperature, and its structure and morphology were characterized. The results show that FeF2 is successfully coated by carbon, and Fe3C is partially formed. The electrochemical measurements show the obtained material displays a reversible discharge capacity of 246.7 mA·h/g after 100 cycles at 0.1C, and the capacity retention is up to 93.6% compared with the discharge capacity at the second cycle, exhibiting excellent cycling stability.

Key words: FeF2, Carbon coating, Cathode material, Lithium-ion battery

CLC Number: 

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