能源化学(英文版)

能源化学(英文) ›› 2019, Vol. 28 ›› Issue (2): 17-22.DOI: 10.1016/j.jechem.2018.01.025

• Preface • 上一篇    下一篇

Hard carbon derived from rice husk as low cost negative electrodes in Na-ion batteries

Maria K. Rybarczyka, Yunming Lib, Mo Qiaoc, Yong-Sheng Hub, Maria-Magdalena Titiricic, Marek Liedera   

  1. a Gdansk University of Technology, Chemical Faculty, 11/12 Narutowicza St., 80-233 Gdansk, Poland;
    b Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    c Queen Mary University London, School of Materials Science & Engineering, Mile End Road, E14 NS London, UK
  • 收稿日期:2017-11-16 修回日期:2018-01-25 出版日期:2019-02-15 发布日期:2019-02-15
  • 通讯作者: Maria K. Rybarczyk, Marek Lieder
  • 基金资助:

    M.K.R. would like to acknowledge the COST Association and COST Action CA15107 "MultiFunctional Nano-Carbon Composite Materials Network (MultiComp)" for the financial support.

Hard carbon derived from rice husk as low cost negative electrodes in Na-ion batteries

Maria K. Rybarczyka, Yunming Lib, Mo Qiaoc, Yong-Sheng Hub, Maria-Magdalena Titiricic, Marek Liedera   

  1. a Gdansk University of Technology, Chemical Faculty, 11/12 Narutowicza St., 80-233 Gdansk, Poland;
    b Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    c Queen Mary University London, School of Materials Science & Engineering, Mile End Road, E14 NS London, UK
  • Received:2017-11-16 Revised:2018-01-25 Online:2019-02-15 Published:2019-02-15
  • Contact: Maria K. Rybarczyk, Marek Lieder
  • Supported by:

    M.K.R. would like to acknowledge the COST Association and COST Action CA15107 "MultiFunctional Nano-Carbon Composite Materials Network (MultiComp)" for the financial support.

摘要： Here, we report the synthesis of hard carbon materials (RH) made from natural rice husk through a single pyrolysis process and their application as an anode in sodium-ion batteries. The studies show that the electrochemical properties of RHs are affected by the treatment temperatures, which determine the materials morphology, in particular, their degree of graphitization and extent of continuous channels (nanovoids). The latter are accessible to sodium ions and significantly contribute to charge storage capacity of the produced anodes. The RHs obtained at 1600℃ deliver the highest reversible capacity of 276 mAh g-1 mainly due to insertion of sodium ions into the nanovoids. This work deepens the basic understanding of the influence of the carbonization temperature on the sodium storage mechanism.

关键词: Nanovoids in rice husk, Sustainable energy storage, Na-ion batteries

Abstract: Here, we report the synthesis of hard carbon materials (RH) made from natural rice husk through a single pyrolysis process and their application as an anode in sodium-ion batteries. The studies show that the electrochemical properties of RHs are affected by the treatment temperatures, which determine the materials morphology, in particular, their degree of graphitization and extent of continuous channels (nanovoids). The latter are accessible to sodium ions and significantly contribute to charge storage capacity of the produced anodes. The RHs obtained at 1600℃ deliver the highest reversible capacity of 276 mAh g-1 mainly due to insertion of sodium ions into the nanovoids. This work deepens the basic understanding of the influence of the carbonization temperature on the sodium storage mechanism.

Key words: Nanovoids in rice husk, Sustainable energy storage, Na-ion batteries