锂硫二次电池硫-碳纳米管正极的合成和性能 |
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引用本文: | 杜锐,袁中直.锂硫二次电池硫-碳纳米管正极的合成和性能[J].电化学,2009,15(3):284. |
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作者姓名: | 杜锐 袁中直 |
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作者单位: | 华南师范大学化学与环境学院; |
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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.
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关 键 词: | 锂硫二次电池 单质硫 碳纳米管 复合材料 |
收稿时间: | 2009-08-28 |
Synthesis and Characterization of Sulfur-Carbonnanotubes as Cathode of Lithium/Sulfur Rechargeable Battery |
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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. |
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Keywords: | lithium/sulfur rechargeable battery element sulfur carbon nanotubes composite material |
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