Hostname: page-component-8448b6f56d-42gr6 Total loading time: 0 Render date: 2024-04-24T20:37:01.337Z Has data issue: false hasContentIssue false
  • English
  • Français

Gel Electrolyte Based Supercapacitors with Higher Capacitances and Lower Resistances than Devices with a Liquid Electrolyte

Published online by Cambridge University Press:  26 March 2018

Belqasem Aljafari  and
Arash Takshi
Belqasem Aljafari
Affiliation:
Department of Electrical Engineering, University of South Florida, Tampa, FL33620, U.S.A. Department of Electrical Engineering, Najran University, Najran, Saudi Arabia.
Arash Takshi*
Affiliation:
Department of Electrical Engineering, University of South Florida, Tampa, FL33620, U.S.A. Clean Energy Research Center, University of South Florida, Tampa, FL, USA
*
*(Email: atakshi@usf.edu)
Get access

Abstract

Recently, gel polymer electrolytes (GPEs) have been drawn noteworthy attention for different applications, specifically, for supercapacitors. GPEs could become an excellent substitute to liquid electrolytes (LEs) for making flexible and more durable devices. The performance of two different electrolytes (GPEs and LEs) in multi-wall carbon nanotube based supercapacitors were investigated. In spite of significantly lower conductivity of GPEs than LEs, devices with the gel electrolyte presented a superior performance. More focused has been given in this work on demonstrating the performance of supercapacitors based on GPEs and LEs at different concentrations of the acids ranging from 1M to 3M. Both electrolytes have been characterized at room temperature by making supercapacitors and using cyclic voltammetry, charging-discharging, electrochemical impedance spectroscopy, and leakage tests. The experimental results showed that GPE devices had much better capacitances and resistances compare to the LE based devices. Moreover, the capacitances of all devices were increased proportionally with the increase in the concentration from 1M to 3M, and the resistances were increased inversely with the decreased of concentration. The promising results from the gel electrolytes is encouraging for further development of flexible and high capacitance energy storage devices.

Keywords

energy storagepolymerliquid
Type
Articles
Information
MRS Advances , Volume 3 , Issue 22: Energy and Sustainability , 2018 , pp. 1261 - 1267
Copyright
Copyright © Materials Research Society 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Chen, Q., Li, X., Zang, X., Cao, Y., He, Y., Li, P., Wang, K., Wei, J., Wu, D., and Zhu, H.. RSC Advances 4, (68), 36253–36256 (2014).CrossRefGoogle Scholar
Zhong, C., Deng, Y., Hu, W., Qiao, J., Zhang, L., and Zhang, J.. Chemical Society Reviews 44(21), 7484–7539 (2015).Google Scholar
Kalpana, D., Renganathan, N. G., and Pitchumani, S.. J. of Power Sources 157 (1), 621–623 (2006).Google Scholar
Fan, L.Q., Zhong, J., Wu, J. H., Lin, J.M., and Huang, Y.F.. J. of Materials Chemistry A 2 (24), 9011–9014 (2014).Google Scholar
Sa’adu, L., Hashim, M. A., and Baharuddin, M. B.. J. of Materials Science Research 3 (3), 48 (2014).Google Scholar
Chodankar, N.R., Dubal, D.P., Lokhande, A.C., and Lokhande, C.D.. J. of Colloid and Interface Science 460, 370–376 (2015).CrossRefGoogle Scholar
Gao, H., and Lian, K.. J. of Materials Chemistry 22 (39), 21272–21278 (2012).CrossRefGoogle Scholar
Gaaz, T. S., Sulong, A.B., Akhtar, M. N., Kadhum, A.A.H., Mohamad, A.B., and Al-Amiery, A.A.. Molecules 20 (12), 22833–22847 (2015).Google Scholar