中国物理B ›› 2019, Vol. 28 ›› Issue (6): 68203-068203.doi: 10.1088/1674-1056/28/6/068203

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Hard carbons derived from pine nut shells as anode materials for Na-ion batteries

Hao Guo(郭浩), Kai Sun(孙凯), Yaxiang Lu(陆雅翔), Hongliang Wang(王洪亮), Xiaobai Ma(马小柏), Zhengyao Li(李正耀), Yong-Sheng Hu(胡勇胜), Dongfeng Chen(陈东风)   

  1. 1 China Institute of Atomic Energy, Beijing 102413, China;
    2 Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2019-03-27 修回日期:2019-04-07 出版日期:2019-06-05 发布日期:2019-06-05
  • 通讯作者: Kai Sun, Yaxiang Lu, Dongfeng Chen E-mail:ksun@sina.com;yxlu@iphy.ac.cn;dfchenciae@126.com
  • 基金资助:

    Project supported by the President Fund Project of China Institute of Atomic Energy.

Hard carbons derived from pine nut shells as anode materials for Na-ion batteries

Hao Guo(郭浩)1, Kai Sun(孙凯)1, Yaxiang Lu(陆雅翔)2,3, Hongliang Wang(王洪亮)1, Xiaobai Ma(马小柏)1, Zhengyao Li(李正耀)1, Yong-Sheng Hu(胡勇胜)2,3, Dongfeng Chen(陈东风)1   

  1. 1 China Institute of Atomic Energy, Beijing 102413, China;
    2 Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
  • Received:2019-03-27 Revised:2019-04-07 Online:2019-06-05 Published:2019-06-05
  • Contact: Kai Sun, Yaxiang Lu, Dongfeng Chen E-mail:ksun@sina.com;yxlu@iphy.ac.cn;dfchenciae@126.com
  • Supported by:

    Project supported by the President Fund Project of China Institute of Atomic Energy.

摘要:

Hard carbons as promising anode materials for Na-ion batteries (NIBs) have captured extensive attention because of their low operation voltage, easy synthesis process, and competitive specific capacity. However, there are still several disadvantages, such as high cost and low initial coulombic efficiency, which limit their large-scale commercial applications. Herein, pine nut shells (PNSs), a low-cost biomass waste, are used as precursors to prepare hard carbon materials. Via a series of washing and heat treatment procedures, a pine nut shell hard carbon (PNSHC)-1400 sample has been obtained and delivers a reversible capacity of around 300 mAh/g, a high initial coulombic efficiency of 84%, and good cycling performance. These excellent Na storage properties indicate that PNSHC is one of the most promising candidates of hard carbon anodes for NIBs.

关键词: Na-ion battery, anode, hard carbon, pine nut shells

Abstract:

Hard carbons as promising anode materials for Na-ion batteries (NIBs) have captured extensive attention because of their low operation voltage, easy synthesis process, and competitive specific capacity. However, there are still several disadvantages, such as high cost and low initial coulombic efficiency, which limit their large-scale commercial applications. Herein, pine nut shells (PNSs), a low-cost biomass waste, are used as precursors to prepare hard carbon materials. Via a series of washing and heat treatment procedures, a pine nut shell hard carbon (PNSHC)-1400 sample has been obtained and delivers a reversible capacity of around 300 mAh/g, a high initial coulombic efficiency of 84%, and good cycling performance. These excellent Na storage properties indicate that PNSHC is one of the most promising candidates of hard carbon anodes for NIBs.

Key words: Na-ion battery, anode, hard carbon, pine nut shells

中图分类号:  (Lead-acid, nickel-metal hydride and other batteries)

  • 82.47.Cb
82.45.Fk (Electrodes) 84.60.-h (Direct energy conversion and storage)