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Vol. 26 No. 10 (2014): Vol 26 Issue 10

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Study of Synthesis Mechanism and Electrochemical Performance of LiTi2(PO4)3

https://doi.org/10.14233/ajchem.2014.16014
Wei Zhu
College of Chemistry and Chemical Engineering, Chongqing Univeristy, Chongqing 400044, P.R. China
Feng-Guang Niu
College of Chemistry and Chemical Engineering, Chongqing Univeristy, Chongqing 400044, P.R. China
Ya-Ping Yang
College of Chemistry and Chemical Engineering, Chongqing Univeristy, Chongqing 400044, P.R. China
Zuo-Long Wang
College of Chemistry and Chemical Engineering, Chongqing Univeristy, Chongqing 400044, P.R. China
Jing Yao
College of Chemistry and Chemical Engineering, Chongqing Univeristy, Chongqing 400044, P.R. China
Zhang-Gan Wang
College of Chemistry and Chemical Engineering, Chongqing Univeristy, Chongqing 400044, P.R. China

Corresponding Author(s) : Wei Zhu

zhuweicq@163.com, niufengguang2007@126.com

Asian Journal of Chemistry, Vol. 26 No. 10 (2014): Vol 26 Issue 10

Abstract

LiTi2(PO4)3/C was synthesized by high-temperature solid-state method. The microstructure, morphology of the samples were characterized and investigated by X-ray diffraction and its electrochemical properties were characterized in an organic and aqueous electrolyte. Galvan static charge-discharge cycling of the resulting lithium titanium phosphate showed an initial discharge capacity of 142.7 mAh/g and quite good capacity retention during cycling, 97 % after 50 cycles and 90.17 % after 50 cycles at a 5 C cycling rate in an organic electrolyte. Choosing LiFePO4/2M, Li2SO4/LiTi2(PO4)3/C and LiCoO2/2 mol/L, Li2SO4/LiTi2(PO4)3/C as the aqueous solution battery system, test LiTi2(PO4)3/C/Galvan static charge-discharge performance. The result showed an initial discharge capacity of 69.4 mAh/g and 59.1 mAh/g respectively and their voltage platform is 0.9 V and 1.5 V at a 4 C cycling rate. All of those two aqueous battery systems have a good cycle performance.

Keywords

LiTi2(PO4)3/C High-temperature solid-state method Negative electrode Organic system Aqueous electrolyte
Zhu, W., Niu, F.-G., Yang, Y.-P., Wang, Z.-L., Yao, J., & Wang, Z.-G. (2014). Study of Synthesis Mechanism and Electrochemical Performance of LiTi2(PO4)3. Asian Journal of Chemistry, 26(10), 2916–2920. https://doi.org/10.14233/ajchem.2014.16014
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