Simple and Rapid Synthesis of LiFePO₄/C Composite for Lithium Rechargeable Batteries by Microwave-Solvothermal Method Assisted with Short Time Post-Treatment Process

Abstract:

A simple and rapid technique to synthesize LiFePO4 by microwave-solvothermal method assisted a short time post-treatment was described. The crystal structure and the charge-discharge performance of the prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and galvanostatic charge-discharge testing. The results indicated that this rapid synthesis technique by microwave-solvothermal method combined short time post-treatment was an effective way to obtain LiFePO4 with a single olivine-type crystal structure and small particle size. The electrochemical research indicated that the resulting LiFePO4/C composite could deliver 141.7mAh•g-1 at 0.1C at 25 °C and showed good stability retaining 97% after 45 cycles.

• Periodical: Applied Mechanics and Materials (Volumes 236-237)
• Pages: 736-740
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.236-237.736
• Online since: November 2012
• Authors: Chang Su, Jun Lei Liu, Li Huan Xu, Ling Min Wang, Qi Fei Huang, Cheng Zhang
• Keywords: LiFePO₄, Microwave-Solvothermal, Post-Treatment

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