郑州轻工业学院学报（自然科学版）Issue(2)：11-15,21,6.DOI:10.3969/j.issn.2095-476X.2015.02.003
溶胶-凝胶法制备 ZnWO4负极材料及其电化学性能研究
ZnWO4 anode material preparation by sol-gel method and its electrochemical performance
摘要
Abstract
ZnWO4 materials were prepared by citrates sol-gel method. The effect of sintering temperature on preparation process of samples was studied. The thermo-decomposing process of the precursor was analyzed by TG/ DSC;the crystal structure and morphology of samples were characterized by XRD and SEM,and the electrochemical performance was tested by continuous current charge-discharge,cyclic voltammetry (CV)and electrochemical impedance spectroscopy(EIS). The results showed that the materials prepared at 550 ℃ had well developed crystal structure and better electrochemical properties with the first discharge specific capacity of 446. 29 mAh / g and the reversible specific capacity of 200. 7 mAh / g after cycle 20 times,specific capacity decayed slowly,charge and discharge efficiency was also high,and it showed a good cycle performance.关键词
锂离子电池/ZnWO4 材料/溶胶 - 凝胶法/焙烧温度/电化学性能Key words
lithium-ion battery/ZnWO4 material/sol-gel method/sintering temperature/electrochemical per-formance分类
通用工业技术引用本文复制引用
谢文菊,王志涛,张林森,金恺,吴方棣..溶胶-凝胶法制备 ZnWO4负极材料及其电化学性能研究[J].郑州轻工业学院学报（自然科学版）,2015,(2):11-15,21,6.基金项目
河南省科技计划项目（122300410297）；武夷学院青年基金项目 （）
