Bulletin of Materials Science

, 41:145 | Cite as

Effect of gel polymer electrolyte based on polyvinyl alcohol/polyethylene oxide blend and sodium salts on the performance of solid-state supercapacitor

  • TUNG NGO TRINHEmail author


In this work, the effect of gel polymer electrolytes (GPE) containing polyvinyl alcohol/polyethylene oxide (90/10, wt%) blend and different contents of sodium salt mixture (sodium acetate \((\hbox {CH}_{3}{\mathrm{COONa)}}\)/sodium sulphate \(\hbox {(Na}_{2}\hbox {SO}_{4}) = 50/50~\hbox {wt}\%\)) on the performance of solid-state supercapacitor was investigated. The active electrode of the solid-state supercapacitor was made from graphene nanoplatelets and carbon black. The results indicate that the sodium salt mixtures were easily mixed in polymer blend gel to make excellent GPE with large concentration of ionic liquid. At the sodium salt mixture content of 30%, the solid-state supercapacitor showed the best performance of electrode-specific capacitance of \(93.768 \hbox { F g}^{-1}\) at current density of \(1\hbox { A g}^{-1}\), energy density of \(3.25\hbox { Wh kg}^{-1}\) and power density of \(586.166 \hbox { W kg}^{-1}\). These results highly recommend the good potential of GPE for developing solid-state supercapacitor in the future.


Solid-state supercapacitor gel polymer electrolytes polymer blend sodium salt 



We acknowledge the financial support from the Institute of Chemistry, Vietnam Academy of Science and Technology (VHH.2017.1.02).


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© Indian Academy of Sciences 2018

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  1. 1.Institute of ChemistryVietnam Academy of Science and Technology (VAST)HanoiVietnam

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