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- Title
ZnWO<sub>4</sub> anode material preparation by sol-gel method and its electrochemical performance.
- Authors
XIE Wen-ju; WANG Zhi-tao; ZHANG Lin-sen; JIN Kai; WU Fang-li
- 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 °C 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.
- Subjects
ANODES; SOL-gel processes; ELECTROCHEMICAL research; SINTERING
- Publication
Journal of Zhengzhou University of Light Industry, Natural Science Edition, 2015, Vol 30, Issue 2, p11
- ISSN
2095-476X
- Publication type
Article
- DOI
10.3969/j.issn.2095-476X.2015.02.003