| 球磨法制备SnO_2/石墨复合材料及其电化学性能 |
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| 引用本文： | 黄佳木,刘佳,李新禄,柳红东,王皓,张育新. 球磨法制备SnO_2/石墨复合材料及其电化学性能[J]. 硅酸盐学报, 2012, 40(10): 1502-1506 |
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| 作者姓名： | 黄佳木 刘佳 李新禄 柳红东 王皓 张育新 |
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| 作者单位： | 重庆大学材料与科学工程学院,重庆,400045 |
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| 摘 要： | 利用球磨法制备了氧化锡（SnO2）/石墨复合材料,采用场发射扫面电镜、X射线衍射和比表面积对样品进行表征,结果显示,SnO2颗粒包裹在石墨片层上,SnO2/石墨复合材料的比表面积为83.90 m2/g。电化学测试结果表明,球磨法制备的SnO2/石墨复合材料首次放、充电容量分别为1 749mA h/g和1 346 mA h/g,在50 mA/g,100 mA/g和500 mA/g电流密度下,循环40次后,该电极可逆放电容量仍然高达432 mA h/g。
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| 关 键 词： | 锂离子电池 球磨 氧化锡/石墨 复合材料 |
Preparation and Electrochemical Characteristics of SnO2/Graphite Composites by Ball Milling |
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| HUANG Jiamu,LIU Jia,LI Xinlu,LIU Hongdong,WANG Hao,ZHANG Yuxin. Preparation and Electrochemical Characteristics of SnO2/Graphite Composites by Ball Milling[J]. Journal of The Chinese Ceramic Society, 2012, 40(10): 1502-1506 |
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| Authors: | HUANG Jiamu LIU Jia LI Xinlu LIU Hongdong WANG Hao ZHANG Yuxin |
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| Affiliation: | (School of Materials Science and Engineering,Chongqing University,Chongqing 400045,China) |
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| Abstract: | SnO2/graphite composite materials were prepared by a milling process.The samples were characterized by X-ray diffraction,scanning electron microscopy and BET surface area measurement,respectively.The results show that SnO2 wraps in graphite layer and the specific surface area of the material is 80.90 m2/g.The initial discharge-charge capacity of the material can reach 1 749 mA h/g and 1 346 mA h/g,respectively,and the discharge capacity is 432 mA h/g after 40 cycles at the current density of 50 mA/g,100 mA/g and 500 mA/g. |
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| Keywords: | lithium ion battery ball milling tin dioxide/graphite composite materials |
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