journal6 ›› 2012, Vol. 33 ›› Issue (5): 98-101.DOI: 10.3969/j.issn.1007-2985.2012.05.025

• Chemistry and chemical engineering • Previous Articles     Next Articles

Synthesis and Electrochemical Properties of Spinel Li4Ti5O12


  1. (1.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China;2.Xiangxi Ores and New Materials Development and Service Center,Jishou 416000,Hunan China)
  • Online:2012-09-25 Published:2012-11-30

Abstract: The anode material Li4Ti5O12 for Li-ion battery was synthesized by high temperature solid-state method,sol-gel method and thermal polymerization method.Its structural characterization,surface morphology and electrochemical performance of products were characterized by X-ray diffractometry,scanning electron microscopy,electrochemical impedance spectroscopy,and galvanostatic charge-discharge test.The result shows that Li4Ti5O12 prepared by the three methods had perfect spinel structure.The powders prepared by high temperature solid-state were the biggest,while the powders prepared by sol-gel were the smallest with an average dimension of 200~350 nm and exhibited better electrochemical performance.Its initial specific discharge capacity was 174.5 mAh/g at 0.2 C rate,only reducing 5.7% after 25 cycles.

Key words: Li-ion battery, anode material, Li4Ti5O12, high temperature solid-state, sol-gel, thermal polymerization

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