Preparation of hierarchical porous carbon and its rate performance as anode of lithium ion battery
Preparation of hierarchical porous carbon and its rate performance as anode of lithium ion battery
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分级多孔碳的制备及其锂离子电池负极倍率性能
DOI：
10.1016/j.jpowsour.2010.12.017
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发表时间：
2011-08
期刊：
影响因子：
--
通讯作者：
J. Yi, X.P. Li, S.J. Hu, W. S. Li*, L. Zhou, M.
中科院分区：
文献类型：
--
作者：
J. Yi, X.P. Li, S.J. Hu, W. S. Li*, L. Zhou, M.
以聚苯乙烯（PS）微球为模板制备了一种低氧含量的多级多孔炭材料，并采用扫描电镜（SEM）、透射电镜（TEM）、X射线衍射（XRD）、傅里叶变换红外光谱（FTIR）、元素分析（EA）、电化学阻抗谱（EIS）和恒电流充电/放电测试。SEM、TEM、XRD、FTIR和EA测试结果表明，所制备的样品具有良好的孔结构，孔径为170 nm，氧含量为3.3±0.2wt.%。所制备的样品的低氧含量可以归因于通过热分析确定的模板的低分解温度。电化学阻抗测试表明，所制备的样品的嵌锂/脱锂电化学阻抗低于商用天然石墨，充放电测试表明，以所制备的样品为正极的电池比以石墨为负极的电池具有更好的倍率性能。
A hierarchical porous carbon with low oxygen content has been prepared by using polystyrene (PS) spheres as template and its structure, composition and performances as anode of lithium ion battery are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, element analysis (EA), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge test. The results obtained from SEM, TEM, XRD, FTIR, and EA indicate that the prepared sample has a well-interconnected pore structure with a pore size of 170nm and has an oxygen content of 3.3±0.2wt.%. The low oxygen content of the prepared sample can be ascribed to the low decomposition temperature of the template that was determined by thermal analysis. EIS shows that the prepared sample has lower electrochemical impedance for the lithium insertion/de-insertion than commercial natural graphite and charge/discharge tests show that the battery using the prepared sample as anode exhibits better rate performance than that using the graphite.
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影响因子：
5.4
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
Mieloszynski, JL
DOI：
10.1021/jp810279h
发表时间：
2009-03
期刊：
The journal of physical chemistry. B
影响因子：
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作者：
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含柠檬酸磷酸铝前体碳化直接合成多孔碳
影响因子：
5.2
作者：
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通讯作者：
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