Preparation and characterization of three-dimentionally ordered mesoporus titania microparticles as anode material for lithium ion battery
Preparation and characterization of three-dimentionally ordered mesoporus titania microparticles as anode material for lithium ion battery
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DOI：
10.1016/j.elecom.2007.06.009
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发表时间：
2007-08-01
影响因子：
5.4
通讯作者：
Wu, Y. P.
中科院分区：
文献类型：
--
作者：
Fu, L. J.;Zhang, T.;Wu, Y. P.
以聚苯乙烯（PS）胶体晶体为模板，制备了无基底的三维有序介孔二氧化钛（TiO2）微球，并通过透射电镜、X射线衍射、热重分析和电化学测试对其进行了表征。作为锂离子电池的负极材料，由于其具有特殊的孔道结构和薄壁结构，有利于锂离子的扩散，因此表现出优异的动力学性能和良好的容量保持率。此外，将三维有序介孔二氧化钛微粒与导电添加剂混合可以降低阳极电阻，有利于电子的迁移，降低极化。(c)2007 Elsevier B.V.保留所有权利。
Three-dimensionally (3D) ordered mesoporous titania (anatase) microparticles without substrate were prepared by using polystyrene (PS) colloidal crystal as a template and characterized by transmission electron microscopy, X-ray diffraction, thermogravimetry and electrochemical measurement. As anode materials for lithium ion battery, they present eximious kinetic performance and good capacity retention due to their special architecture with mesoporous channels and thin walls, which are beneficial to the diffusion of lithium ions. Besides, mixing 3D ordered mesoporous titania microparticles with conductive additive can reduce the resistance of the anode, favor the mobility of the electrons, and decrease the polarization. (c) 2007 Elsevier B.V. All rights reserved.