V_2O_5/C电化学电容器有机电解液的性能研究

doi:10.61558/2993-074X.1876

电化学（中英文） ›› 2008, Vol. 14 ›› Issue (2): 125-129. doi: 10.61558/2993-074X.1876

V_2O_5/C电化学电容器有机电解液的性能研究

王虹;唐致远;李中延;庄新国;

天津大学化工学院,天津大学化工学院,迈科科技有限公司,迈科科技有限公司天津300072,天津300072,广东东莞523800,广东东莞523800

收稿日期:2008-05-28 修回日期:2008-05-28 出版日期:2008-05-28 发布日期:2008-05-28

Property of Organic Electrolyte in V_2O_5/C Electrochemical Capacitor

WANG Hong1,TANG Zhi-yuan1,LI Zhong-yan2,ZHUANG Xin-guo2

(1.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.McNair Technology Co.,Ltd.,Dongguan 523800,Guangdong,China

Received:2008-05-28 Revised:2008-05-28 Published:2008-05-28 Online:2008-05-28

摘要/Abstract

摘要： 以偏钒酸铵为反应原料,采用液相沉淀法制备出不定型V2O5电极材料.以V2O5为正极,石墨为负极,分别选用1.0 mol/L LiClO4/EC+DMC、1.0 mol/L LiPF6/EC+DEC+DMC、1.6 mol/L Et4NBF4/AN 3种有机电解液组成不对称电化学电容器,恒流充放电、循环伏安和交流阻抗等测试该模拟电容器,如以1.0 mol/LLiClO4/EC+DMC作电解液则具有良好的循环性能和较小的阻抗,且在500 mA/g电流密度下比能量达到8.4Wh/kg,充放电效率达98%.

关键词: 电化学电容器, 金属氧化物, V2O5, 混合电容器

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%.

Key words: electrochemical capacitor, metal oxide, V2O5, compound capacitor

中图分类号:

TM533

王虹, 唐致远, 李中延, 庄新国, . V_2O_5/C电化学电容器有机电解液的性能研究[J]. 电化学（中英文）, 2008, 14(2): 125-129.

WANG Hong, TANG Zhi-yuan, LI Zhong-yan, ZHUANG Xin-guo. Property of Organic Electrolyte in V_2O_5/C Electrochemical Capacitor[J]. Journal of Electrochemistry, 2008, 14(2): 125-129.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.1876

https://electrochem.xmu.edu.cn/CN/Y2008/V14/I2/125

参考文献

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V_2O_5/C电化学电容器有机电解液的性能研究

Property of Organic Electrolyte in V_2O_5/C Electrochemical Capacitor

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