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从SiCl4合成多孔硅/碳复合材料及储锂性能研究

冯雪娇 ,  杨军 ,  努丽燕娜 ,  王久林

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引用本文: 冯雪娇, 杨军, 努丽燕娜, 王久林. 从SiCl4合成多孔硅/碳复合材料及储锂性能研究[J]. 无机化学学报, 2013, 29(11): 2289-2296. doi: 10.3969/j.issn.1001-4861.2013.00.367 shu
Citation:  FENG Xue-Jiao, YANG Jun, NULI Yan-Na, WANG Jiu-Lin. Synthesis and Lithium Storage Performance of Porous Silicon/Carbon Composite Material from SiCl4[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(11): 2289-2296. doi: 10.3969/j.issn.1001-4861.2013.00.367 shu

从SiCl4合成多孔硅/碳复合材料及储锂性能研究

摘要: 以Li13Si4和SiCl4为原料,通过简单的机械球磨法合成多孔硅/碳复合材料,通过控制Li13Si4颗粒的尺寸可以有效调节产物的比表面积。分别研究了包覆碳含量、多孔硅/SuperP(导电碳)比表面积以及极片活性物质负载量对多孔硅/碳复合材料电化学性能的影响。结果表明:多孔硅/SuperP比表面积为100.9m2·g-1,化学气相沉积(CVD)包覆碳含量为25.3wt%(约6nm厚)的复合材料具有最高的电化学活性,在300mA·g-1的电流密度下,循环可逆比容量达到1900mAh·g-1,50次循环后容量仅衰减7.6%。

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  • 收稿日期:  2013-04-22
  • 网络出版日期:  2013-06-17
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