Electrochemical Performance of Li4Ti5O12/TiO2/Li0.4TiO2/C Composite Prepared by the Electrospinning Method Using as Lithium Battery Anode Material

Chun Hua Chen; Jia Jia Feng; Wei Quan Shao; Sha Ou Chen; Li Zhu He; Yan Qiang Li; Yue Qin Ban; Fang Hei; Xiao Jie Guo

doi:10.4028/www.scientific.net/MSF.852.959

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HomeMaterials Science ForumMaterials Science Forum Vol. 852Electrochemical Performance of...

Electrochemical Performance of Li₄Ti₅O₁₂/TiO₂/Li_0.4TiO₂/C Composite Prepared by the Electrospinning Method Using as Lithium Battery Anode Material

Abstract:

Li₄Ti₅O₁₂(LTO) and Li₄Ti₅O₁₂/TiO₂/Li_0.4TiO₂/C (LTO/C) composite were prepared by the electrospinning method using acetic acid, ethanol, butyl titanate, lithium acetate and PVP (K90) as the raw materials. The phase structure and the morphology were characterized by the X-ray diffraction (XRD) and the scanning electron microscopy (SEM), respectively. It was found that the specific capacity was 356mAh/g at 0.5C for the composite, which was higher than the theoretical specific capacity of the pure Li₄Ti₅O₁₂ due to the inclusion of other phase. Moreover, the C-rate performance for the composite was also better than that of the pure Li₄Ti₅O₁₂ resulting from the formation of carbon-based fiber structure. Electrochemical impedance spectra (EIS) revealed that the composite exhibited the improved electronic conductivity than that of Li₄Ti₅O₁₂.

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Periodical:

Materials Science Forum (Volume 852)

Pages:

959-962

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.852.959

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Online since:

April 2016

Authors:

Chun Hua Chen, Jia Jia Feng, Wei Quan Shao, Sha Ou Chen, Li Zhu He, Yan Qiang Li, Yue Qin Ban, Fang Hei, Xiao Jie Guo

Keywords:

Electrospinning, Li₄Ti₅O₁₂/TiO₂/Li_0.4TiO₂/C, Lithium Battery Anode Material

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