电池2013，Vol.43Issue(4)：207-210,4.
不同反应体系水热合成的LiFePO4/C的性能
Performance of LiFePO4/C synthesized by hydrothermal with different reaction system
摘要
Abstract
Cathode material carbon coated lithium iron phosphate(LiFePO4/C) was prepared by hydrothermal method with surfactant.The morphology,structure and electrochemical performance of the products were characterized by Fourier transform infrared spectroscopy (FT-IR),XRD,thermogravimetric (TG),SEM,galvanostatic charge-discharge and electrochemical impedance spectroscopy(EIS) tests.LiFePO4/C samples were small particles with pure phase and regular shape.LiFePO4/C particles showed different morphology and grain size when the surfactant changed.LiFePO4/C samples prepared with PVP and PEG-400 could deliver the initial discharge specific capacity of 154.1 mAh/g and 145.6 mAh/g at 0.1 C when cycled in 2.0 ～ 4.2 V.When cycle 24 times,the capacity retention at 0.5 C was 71％ and 75％,respectively,the capacity retention at 1.0 C was 65％ and 62％,respectively.关键词
正极材料/水热法/磷酸铁锂(LiFePO4)/电化学性能Key words
cathode material/ hydrothermal method/ lithium iron phosphate(LiFePO4) / electrochemical performance分类
信息技术与安全科学引用本文复制引用
娄永兵,张静静,朱林..不同反应体系水热合成的LiFePO4/C的性能[J].电池,2013,43(4):207-210,4.基金项目
江苏省自然科学基金资助项目(BK2009262) （BK2009262）
