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电化学(中英文) ›› 2009, Vol. 15 ›› Issue (3): 284-287.  doi: 10.61558/2993-074X.1996

• 研究论文 • 上一篇    下一篇

锂硫二次电池硫-碳纳米管正极的合成和性能

杜锐;袁中直;   

  1. 华南师范大学化学与环境学院;
  • 收稿日期:2009-08-28 修回日期:2009-08-28 出版日期:2009-08-28 发布日期:2009-08-28

Synthesis and Characterization of Sulfur-Carbonnanotubes as Cathode of Lithium/Sulfur Rechargeable Battery

DU Rui,YUAN Zhong-zhi   

  1. (College of Chemistry and Environment,South China Normal University,Guangzhou Guangdong 510006,China
  • Received:2009-08-28 Revised:2009-08-28 Published:2009-08-28 Online:2009-08-28

摘要: 由单质硫与碳纳米管合成一种新型含碳复合材料.XRD、SEM、BET比表面和孔径分布表征观察硫-碳纳米管复合材料,循环伏安法和电池充放电测试材料的电化学性能.结果表明:以硫-碳纳米管作正极组装的2016型扣式电池有较好的电化学性能,其初始放电比容量达680mAh/g(室温),30次循环放电比容量仍稳定在500mAh/g.

关键词: 锂硫二次电池, 单质硫, 碳纳米管, 复合材料

Abstract: A carbon-containing composite was synthesized by heating element sulfur and carbon nanotubes. The sulfur-carbonnanotube composites were characterized by X-ray diffraction,SEM,Brunauer-Emmett-Teller.The electrochemical property was characterized by cyclic voltammetry,constant current charge and discharge.It was revealed that the sulfur-carbonnanotube cathode 2016-type coin cells exhibited a good electrochemical property with the initial dicharge specific capacity up to 680 mAh/g and a stable capacity approximately 500 mAh/g after 30 cycle numbers.

Key words: lithium/sulfur rechargeable battery, element sulfur, carbon nanotubes, composite material

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