Property of Organic Electrolyte in V_2O_5/C Electrochemical Capacitor

Authors

Hong WANG, School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;
Zhi-yuan TANG, School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;
Zhong-yan LI, McNair Technology Co.,Ltd.,Dongguan 523800,Guangdong,China;
Xin-guo ZHUANG, McNair Technology Co.,Ltd.,Dongguan 523800,Guangdong,China;

Abstract

In this work,the V2O5 cathode and graphite anode were assembled into non-symmetric electrochemical capacitors using 1.0 mol/L LiClO4 /(EC + DMC),1.0 mol/L LiPF6 /(EC + DEC + DMC),and 1.6mol/L Et4NBF4/AN as electrolyte,respectively.Charging and discharging tests,Cyclic Voltammetry and AC impedance methods were used to investigate the performance of the non-symmetric electrochemical capacitors.The results showed that the electrolyte 1.0 mol/L LiClO4/(EC+DMC)displayed better cycling performance and less resistance.At the current density of 500 mA/g,its specific energy reached 8.4 Wh/kg and the charge-discharge efficiency was 98%.

Keywords

electrochemical capacitor, metal oxide, V2O5, compound capacitor

DOI Link

https://doi.org/10.61558/2993-074X.1876

Publication Date

2008-05-28

Online Available Date

2008-05-28

Revised Date

2008-05-28

Received Date

2008-05-28

Recommended Citation

Hong WANG, Zhi-yuan TANG, Zhong-yan LI, Xin-guo ZHUANG. Property of Organic Electrolyte in V_2O_5/C Electrochemical Capacitor[J]. Journal of Electrochemistry, 2008 , 14(2): 125-129.
DOI: 10.61558/2993-074X.1876
Available at: https://jelectrochem.xmu.edu.cn/journal/vol14/iss2/3