Chemical Research in Chinese Universities ›› 2023, Vol. 39 ›› Issue (2): 283-289.doi: 10.1007/s40242-022-2214-7

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Novel Biomass-derived Hollow Carbons as Anode Materials for Lithium-ion Batteries

WU Ziye1, LI Zifan1, CHOU Shulei2, LIANG Xiaoyu1   

  1. 1. School of Measurement and Testing, China Jiliang University, Hangzhou 310018, P. R. China;
    2. College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
  • Received:2022-06-28 Online:2023-04-01 Published:2023-03-16
  • Contact: CHOU Shulei, LIANG Xiaoyu E-mail:chou@wzu.edu.cn;xyliang@cjlu.edu.cn

Abstract: A novel hollow carbon derived from biomass lotus-root has been prepared by a one-step carbonization method. The carbon anode obtained at 900 ℃ showed the best electrochemical performance, corresponding to a high specific capacity of 445 mA∙h/g at 0.1 C, as well as excellent cycling stability after 500 cycles. Further investigation exhibits that the lithium storage of hollow carbon involves Li+ adsorption in the defect sites and Li+ insertion. The results showed that the intrinsic structure of lotus root can inspire us to prepare biomass carbon with a hollow structure as an excellent anode for lithium-ion batteries.

Key words: Biomass hollow carbon, Lithium-ion battery, Negative electrode material, Electrochemical performance