, Volume 25, Issue 7, pp 3321–3329 | Cite as

Iota-carrageenan-based polymer electrolyte: impact on ionic conductivity with incorporation of AmNTFSI ionic liquid for supercapacitor

  • N. K. Farhana
  • Fatin Saiha Omar
  • R. Shanti
  • Y. K. Mahipal
  • S. RameshEmail author
  • K. Ramesh
Original Paper


Green solid polymer electrolytes have drawn attention as multifunctional electrolyte as compared to liquid electrolyte due to their flexibility membranes. In the present work, biodegradable iota-carrageenan polymer has been chosen as the host polymer with magnesium tri-fluromethanesulfonate (MgTf2) as the salt. The polymer film was incorporated with methyl-trioctylammonium bis(trifluoromethyl sulfonyl)imide (AmNTFSI) ionic liquid to amplify the ionic conductivity via adding mobile cations and tuning the crystallinity as well as the glass temperature of the polymer. Upon the incorporation of AmNTFSI, the ionic conductivity was remarkably augmented from (1.24 + 0.01) × 10−6 S cm−1 to the maximum value of (3.20 + 0.01) × 10−3 S cm−1 at room temperature. The thermal, structural, and temperature dependence conductivity measurements of polymer films (with and without AmNTFSI) have been analyzed, and the performance as the supercapacitor electrolytes has been evaluated.


Iota-carrageenan Ionic conductivity Ionic liquid Electric double-layer capacitor Solution cast method 


Funding information

This work is financially supported by University of Malaya Research Grant (UMRG: RG382-17AFR). Authors would like to thank Collaborative Research in Engineering, Science & Technology Center (CREST) for their continuous support in this research (PV027-2018). A special thank you to ECLIMO SDN BHD too.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • N. K. Farhana
    • 1
  • Fatin Saiha Omar
    • 1
  • R. Shanti
    • 1
  • Y. K. Mahipal
    • 2
  • S. Ramesh
    • 1
    Email author
  • K. Ramesh
    • 1
  1. 1.Department of Physics, Faculty of ScienceUniversity of Malaya, Centre for Ionics University of MalayaKuala LumpurMalaysia
  2. 2.School of Studies in Physics & Astrophysics, Pt. RavishankarShukla UniversityRaipurIndia

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