Synthesis and Electrochemical Performance of Li3V2(PO4)3 Cathode Material by Microwave Method

Sheng Kui Zhong; Hui Ping Hu; Jie Qun Liu

doi:10.4028/www.scientific.net/AMR.490-495.3624

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 490-495Synthesis and Electrochemical Performance of...

Synthesis and Electrochemical Performance of Li₃V₂(PO₄)₃ Cathode Material by Microwave Method

Abstract:

Monoclinic Li3V2(PO4)3 was synthesized by a microwave method. The influence of sintering temperatures and time on the synthesis of Li3V2(PO4)3 was investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and charge-discharge test. The results of these tests shows that the Li3V2(PO4)3 sample synthesized at 850 °C for 15 min has pure and perfect crystal. The charge-discharge test shows the Li3V2(PO4)3 sample with optimal synthesis condition has the best initial discharge capacity of 120 mAh/g, with capacity retention of 101 mAh/g after 50 cycles, in the voltage range of 3.0 V–4.2 V.