能源化学(英文) ›› 2014, Vol. 23 ›› Issue (3): 338-345.DOI: 10.1016/S2095-4956(14)60156-X

• ARTICLES • 上一篇    下一篇

Dispersing SnO2 nanocrystals in amorphous carbon as a cyclic durable anode material for lithium ion batteries

Renzong Hu, Wei Sun, Meiqin Zeng, Min Zhu   

  1. School of Materials Science and Engineering, South China University of Technology, Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, Guangzhou 510640, Guangdong, China
  • 收稿日期:2013-10-02 修回日期:2014-01-07 出版日期:2014-05-24 发布日期:2014-05-25
  • 通讯作者: Min Zhu
  • 基金资助:

    This work was supported by the National Science Foundation of China (Grant No. 51201065 and No. 51231003), the Natural Science Foundation of Guangdong Province (S2012040008050) and the Doctorate Foundation of Ministry of Education (Grant No. 20120172120007 and No. 2014ZZ0002).

Dispersing SnO2 nanocrystals in amorphous carbon as a cyclic durable anode material for lithium ion batteries

Renzong Hu, Wei Sun, Meiqin Zeng, Min Zhu   

  1. School of Materials Science and Engineering, South China University of Technology, Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, Guangzhou 510640, Guangdong, China
  • Received:2013-10-02 Revised:2014-01-07 Online:2014-05-24 Published:2014-05-25
  • Supported by:

    This work was supported by the National Science Foundation of China (Grant No. 51201065 and No. 51231003), the Natural Science Foundation of Guangdong Province (S2012040008050) and the Doctorate Foundation of Ministry of Education (Grant No. 20120172120007 and No. 2014ZZ0002).

摘要: We demonstrate a facile route for the massive production of SnO2/carbon nanocomposite used as high-capacity anode materials of next-generation lithium-ion batteries. The nanocomposite had a unique structure of ultrafine SnO2 nanocrystals (~5 nm, 80 wt%) homogeneously dispersed in amorphous carbon matrix. This structure design can well accommodate the volume change of Li+ insertion/desertion in SnO2, and prevent the aggregation of the nanosized active materials during cycling, leading to superior cycle performance with stable reversible capacity of 400 mAh/g at a high current rate of 3.3 A/g.

关键词: lithium ion battery, anode, SnO2 nanocrystals, amorphous carbon, facile strategy

Abstract: We demonstrate a facile route for the massive production of SnO2/carbon nanocomposite used as high-capacity anode materials of next-generation lithium-ion batteries. The nanocomposite had a unique structure of ultrafine SnO2 nanocrystals (~5 nm, 80 wt%) homogeneously dispersed in amorphous carbon matrix. This structure design can well accommodate the volume change of Li+ insertion/desertion in SnO2, and prevent the aggregation of the nanosized active materials during cycling, leading to superior cycle performance with stable reversible capacity of 400 mAh/g at a high current rate of 3.3 A/g.

Key words: lithium ion battery, anode, SnO2 nanocrystals, amorphous carbon, facile strategy