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HomeKey Engineering MaterialsKey Engineering Materials Vol. 727Electrochemical Performance of Spherical...

Electrochemical Performance of Spherical Li₃V₂(PO₄)₃/C Synthesized by Spray Drying Method

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Abstract:

Spherical Li₃V₂(PO₄)₃/C cathode materials have been successfully synthesized by a spray drying method. The structure and morphology of the cathode materials are characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric (TG) analysis. The results show that synthesized monoclinic Li₃V₂(PO₄)₃ with high purities exhibits spherical morphology, in favor of enhancing the capacities and cycling stability of Li₃V₂(PO₄)₃/C cathode materials for lithium-ion battery. The Li₃V₂(PO₄)₃/C cathode materials sintered at 750 °C present best electrochemical performance among all the samples. It exhibits high initial discharge capacities of 99.2 mAhg^-1 and capacity retention of 93.6% after 200 cycles at a rate of 1C within a voltage range of 3.0–4.3 V.

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Periodical:

Key Engineering Materials (Volume 727)

Pages:

738-743

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.727.738

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Online since:

January 2017

Authors:

Zong Lin Zuo, Jin Wang, Jian Qiu Deng, Qing Rong Yao, Zhong Min Wang, Huai Ying Zhou

Keywords:

Cathode, Li₃V₂(PO₄)₃, Lithium-Ion Battery, Spray Drying Method

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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