Solvothermal synthesis and electrochemical performance of hollow LiFePO4 nanoparticles

Authors

Zhenmiao Zheng, Central South University
Wei Kong Pang, University of WollongongFollow
Xincun Tang, Xinjiang University
Dianzeng Jia, Institute of Applied Chemistry China, Xinjiang University, Key Laboratory of Advanced Functional Materials of Autonomous Region
Yudai Huang, Xi'an Jiaotong University, Xinjiang University
Zaiping Guo, University of WollongongFollow

RIS ID

100017

Publication Details

Zheng, Z., Pang, W. Kong., Tang, X., Jia, D., Huang, Y. & Guo, Z. (2015). Solvothermal synthesis and electrochemical performance of hollow LiFePO4 nanoparticles. Journal of Alloys and Compounds, 640 95-100.

Abstract

Hollow LiFePO₄ nanoparticles were synthesized via a solvothermal technique, using ammonium tartrate as additive and carbon source, and ethylene glycol/water as solvent. The as-prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, scanning and transmission electron microscopies, and Brunauer-Emmett-Teller specific surface area measurements. The electrochemical properties of the LiFePO₄ cathode were examined in coin-type cell configuration and the cathode exhibited excellent rate capability (i.e., discharge capacity of 120.9 mA h g^-1 at 10 C) and cycling performance (i.e., >98% of capacity retention rate after 50 cycles). It is believed that the enhanced performance is correlated to the hollow structure, small crystallite and particle sizes, and relatively shorter lattice parameter b.