| 热处理温度对纳米SnO_2与石墨复合材料电化学性能的影响 |
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| 引用本文： | 陈逸民,付延鲍,马晓华,马若彪.热处理温度对纳米SnO_2与石墨复合材料电化学性能的影响[J].复旦学报(自然科学版),2009(4). |
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| 作者姓名： | 陈逸民 付延鲍 马晓华 马若彪 |
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| 作者单位： | 复旦大学材料科学系; |
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| 摘 要： | 用微乳液法制备了纳米SnO2与石墨复合材料作为锂离子电池负极材料,并对其用不同温度进行了热处理.用X-射线衍射(XRD)和透射电子显微镜(TEM)对复合材料进行了表征,并用恒流充放电法考察了试样的电化学性能.对比结果表明,复合材料有着较高的循环容量,不同热处理温度对复合物的电化学性能有着明显的影响.随着热处理温度的升高,电池的循环容量都明显增加,但不可逆容量也随之增加.
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| 关 键 词： | 锂离子电池 负极材料 锡氧化物 复合材料 |
Effect of Heat Treatment on the Electrochemical Properties of SnO_2/Graphite Composite |
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| CHEN Yi-min,FU Yan-bao,MA Xiao-hua,MA Ruo-biao.Effect of Heat Treatment on the Electrochemical Properties of SnO_2/Graphite Composite[J].Journal of Fudan University(Natural Science),2009(4). |
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| Authors: | CHEN Yi-min FU Yan-bao MA Xiao-hua MA Ruo-biao |
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| Institution: | Department of Materials Science;Fudan University;Shanghai 200433;China |
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| Abstract: | SnO2/graphite composite was prepared by microemulsion method.The prepared composite was treated at different temperature.XRD and TEM were employed for the characterization of the composites.The electrochemical performance of the composites was studied by galvanostatic charge-discharge method.The result shows that the composites have higher capacity and heat treatment had obvious effect on the electrochemical properties of the composites.As the heat treatment temperature rises,the capacity of the battery inc... |
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| Keywords: | Li-ion battery anode materials Tin oxides composite |
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