Effect of Temperature on Characteristic of Carbon Nanotube Nano-Composite Electrode Supercapacitor

In order to evaluate the effect of temperature on the performance of supercapacitor using coconut shell activated carbon (AC)/carbon nanotubes (CNTs) as nano-composite electrodes, the supercapacitor's properties were tested in 4mol L-1 KOH solution at 35℃~60℃.The results indicated, when tempera...

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Bibliographic Details
Published in:ECS transactions 2014-09, Vol.61 (18), p.9-13
Main Authors: Huang, Naibao, Kirk, Donald W, Thorpe, Steven J., Liang, Chenghao, Xu, Lishuang, Zhang, Shuchun, Li, Wan, Sun, Min
Format: Article
Language:English
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Summary:In order to evaluate the effect of temperature on the performance of supercapacitor using coconut shell activated carbon (AC)/carbon nanotubes (CNTs) as nano-composite electrodes, the supercapacitor's properties were tested in 4mol L-1 KOH solution at 35℃~60℃.The results indicated, when temperature increased from 35℃ to 60℃, the resistance decreased from 0.83Ω to 0.78Ω by 6% and the capacitance increased from 93.32F g-1 to 104.36F g-1 by 11.8%. It was the contribution of high conductivity and the end open ration of CNTs. These results indicated that CNTs-based nano-composite electrode had good performance at high moderate temperature, and would be a promising material for use in low-cost electrical energy storage device.
ISSN:1938-5862
1938-6737
DOI:10.1149/06118.0009ecst