能源化学(英文版)

能源化学(英文) ›› 2014, Vol. 23 ›› Issue (3): 391-396.DOI: 10.1016/S2095-4956(14)60162-5

• ARTICLES • 上一篇    下一篇

Sulfur/carbon composites prepared with ordered porous carbon for Li-S battery cathode

Xin Zhuang, Yingjia Liu, Jian Chen, Hao Chen, Baolian Yi   

  1. Lab of Advanced Rechargeable Batteries, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, Liaoning, China
  • 收稿日期:2013-12-23 修回日期:2014-03-24 出版日期:2014-05-24 发布日期:2014-05-25
  • 通讯作者: Hao Chen
  • 基金资助:

    This work was supported by the National High Technology Research and Development Program of China (863 Program) and the Strategic Priority Research Program of the Chinese Academy of Sciences.

Sulfur/carbon composites prepared with ordered porous carbon for Li-S battery cathode

Xin Zhuang, Yingjia Liu, Jian Chen, Hao Chen, Baolian Yi   

  1. Lab of Advanced Rechargeable Batteries, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, Liaoning, China
  • Received:2013-12-23 Revised:2014-03-24 Online:2014-05-24 Published:2014-05-25
  • Supported by:

    This work was supported by the National High Technology Research and Development Program of China (863 Program) and the Strategic Priority Research Program of the Chinese Academy of Sciences.

摘要： Ordered porous cabon with a 2-D hexagonal structure, high specific surface area and large pore volume was synthesized through a two-step heating method using tri-block copolymer as template and phenolic resin as carbon precursor. The results indicated the electrochemical performance of the sulfur/carbon composites prepared with the ordered porous carbon was significantly affected by the pore structure of the carbon. Both the specific capacity and cycling stability of the sulfur/carbon composites were improved using the bimodal micro/meso-porous carbon frameworks with high surface area. Its initial discharge capacity can be as high as 1200 mAh·g-1 at a current density of 167.5 mA·g-1. The improved capacity retention was obtained during the cell cycling as well.

关键词: lithium-sulfur battery, sulfur/carbon composite, ordered porous carbon, bimodal micro/meso-porous carbon, tri-block copolymer

Abstract: Ordered porous cabon with a 2-D hexagonal structure, high specific surface area and large pore volume was synthesized through a two-step heating method using tri-block copolymer as template and phenolic resin as carbon precursor. The results indicated the electrochemical performance of the sulfur/carbon composites prepared with the ordered porous carbon was significantly affected by the pore structure of the carbon. Both the specific capacity and cycling stability of the sulfur/carbon composites were improved using the bimodal micro/meso-porous carbon frameworks with high surface area. Its initial discharge capacity can be as high as 1200 mAh·g-1 at a current density of 167.5 mA·g-1. The improved capacity retention was obtained during the cell cycling as well.

Key words: lithium-sulfur battery, sulfur/carbon composite, ordered porous carbon, bimodal micro/meso-porous carbon, tri-block copolymer