Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (3): 624.

• Articles • Previous Articles     Next Articles

Bubble Template Synthesis of MFe2O4(M=Co,Zn) Hollow Microspheres and Their Application in Li-ion Batteries

CHEN Xiao-Mei, GUAN Xiang-Feng, LI Li-Ping, LI Guang-She*, ZHENG Jing   

  1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
  • Received:2010-10-15 Revised:2010-12-08 Online:2011-03-10 Published:2011-02-23
  • Contact: LI Guang-She E-mail:guangshe@fjirsm.ac.cn
  • Supported by:

    国家“九七三”计划项目(批准号: 2011CB935904)、福建省科技项目(批准号: 2009HZ0004-1, 2008F3116, 2006L2005)和中国科学院福建物质结构研究所课题(批准号: 2010KL002, SZD09003-1)资助.

Abstract: In this work, we designed and developed a bubble template-assisted method to prepare self-assembled ferrite hollow microspheres, by which homogeneously distributed CoFe2O4 (M=Co, Zn) hollow microspheres with the particle sizes of around 350 nm were obtained. The obtained hollow microspheres were assembled into cells and evaluated as negative electrodes of Li-ion battery by galvanostatic charge-discharge technique at a current density of 2 Ag-1. It was found that the first discharge and charge capacities were 1339 mAhg?1 and 936 mAhg?1 for CoFe2O4, and 1402 mAhg?1 and 992 mAhg?1 for ZnFe2O4. After 20 cycles, the charge capacities of CoFe2O4 and ZnFe2O4 remained 446 mAhg?1 and 634 mAhg?1, respectively, which are better than those previously reported. It indicates that self-assembled hollow structures are promising in improving the electrochemical performance for lithium ion battery applications.

Key words: Li-ion battery, Negative electrode material, Ferrite, Bubble template method, Hollow microspheres

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