Advances in Energy Research

  • 제5권3호
  • /
  • Pages.219-226
  • /
  • 2017
  • /
  • 2287-6316(pISSN)
  • /
  • 2287-6324(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Electrochemical double layer capacitors with PEO and Sri Lankan natural graphite

  • Jayamaha, Bandara (Department of Physics, University of Jaffna) ;
  • Dissanayake, Malavi A.K.L. (National Institute of Fundamental Studies) ;
  • Vignarooban, Kandasamy (Department of Physics, University of Jaffna) ;
  • Vidanapathirana, Kamal P. (Department of Electronics, Wayamba University of Sri Lanka) ;
  • Perera, Kumudu S. (Department of Electronics, Wayamba University of Sri Lanka)
  • 투고 : 2017.07.05
  • 심사 : 2017.03.25
  • 발행 : 2017.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

Electrochemical double layer capacitors (EDLCs) have received a tremendous interest due to their suitability for diverse applications. They have been fabricated using different carbon based electrodes including activated carbons, single walled/multi walled carbon nano tubes. But, graphite which is one of the natural resources in Sri Lanka has not been given a considerable attention towards using for EDLCs though it is a famous carbon material. On the other hand, EDLCs are well reported with various liquid electrolytes which are associated with numerous drawbacks. Gel polymer electrolytes (GPE) are well known alternative for liquid electrolytes. In this paper, it is reported about an EDLC fabricated with a nano composite polyethylene oxide based GPE and two Sri Lankan graphite based electrodes. The composition of the GPE was [{(10PEO: $NaClO_4$) molar ratio}: 75wt.% PC] : 5 wt.% $TiO_2$. GPE was prepared using the solvent casting method. Two graphite electrodes were prepared by mixing 85% graphite and 15% polyvinylidenefluoride (PVdF) in acetone and casting n fluorine doped tin oxide glass plates. GPE film was sandwiched in between the two graphite electrodes. A non faradaic charge discharge mechanism was observed from the Cyclic Voltammetry study. GPE was stable in the potential windows from (-0.8 V-0.8 V) to (-1.5 V-1.5 V). By increasing the width of the potential window, single electrode specific capacity increased. Impedance plots confirmed the capacitive behavior at low frequency region. Galvanostatic charge discharge test yielded an average discharge capacity of $0.60Fg^{-1}$.

키워드

과제정보

연구 과제 주관 기관 : National Science Foundation, Sri Lanka, Wayamba University of Sri Lanka

참고문헌

  1. Agrawal, R.C., Sahu, D.K., Mahipal, Y.K. and Ashrafi, R. (2013), "Ion transport properties of hot press cast $Mg^{2+}$ ion conducting nano composite polymer electrolyte membranes : Study of effect of active/passive filler particle dispersal on conductivity", Indian J. Pure Appl. Phys., 51, 320-323.
  2. Basnayake, P.A., Ram, M.K., Stefanakos, L. and Kumar, A. (2013), "Graphene/polypyrrole, nanocomposite as electrochemical super capacitor electrode: Electrochemical impedance studies", Graphene, 2(2), 81-87. https://doi.org/10.4236/graphene.2013.22012
  3. Dey, A, Karan, S., De, S.K. (2013), "Effect of nano additives on ionic conductivity of solid polymer electrolytes", Indian J. Pure Appl. Phys., 31, 281-288.
  4. Gamby, J., Taberna, P.L., Fauvarque, J.F. and Chesneau, M. (2001), "Studies and characterizations of various activated carbons used for carbon/carbon super capacitors", J. Power Source, 101, 109-116. https://doi.org/10.1016/S0378-7753(01)00707-8
  5. Hashmi, S.A. (2004), "Super capacitor: An emerging power source". Nat. Acad. Sci. Letters, 27, 27-46.
  6. Hashmi, S.A., Sa'adu, L., Baharuddin, M.B., Dasuki, K.A. (2014), "Using PVA methacrylate and lauroyl chitosan as separator in super capacitors", J. Mater. Sci. Res., 3(1), 25-29.
  7. Jayathilake, Y.M.C.D., Perera, K.S., Vidanapathirana, K.P., Bandara, L.R.A.K., (2014), "Ionic conductivity of a PMMA based gel polymer electrolyte and its performance in solid state electrochemical cells", Sri Lankan J. Phys., 15, 11-17.
  8. Li, H.Q., Wang, Y.O., Wang, C.X. and Xia, Y.Y. (2008), "A competitive candidate material for aqueous super capacitors : High surface area graphite", J. Power Source., 185(2), 1557-1562. https://doi.org/10.1016/j.jpowsour.2008.08.079
  9. Nandhini, R., Mini, P.A., Avinash, B., Nair, S.V. and Subramanian, K.R.V. (2012), "Super capacitor electrodes using nano scale activated carbon from graphite by ball milling", Mater. Lett., 87,165-168. https://doi.org/10.1016/j.matlet.2012.07.092
  10. Natalia, M., Sudhakar, Y.N. and Selvakumar, M. (2013), "Activated carbon derived from natural sources and electrochemical capacitance of double layer capacitor", Indian J. Chem. Technol., 20(6), 392-399.
  11. Pandey, G.P., Hashmi, S.A. and Kumar, Y. (2010), "Performance studies of activated charcoal based electrochemical double layer capacitors with ionic liquid gel polymer electrolytes", Energy Fuel., 24(12), 6644-6652. https://doi.org/10.1021/ef1010447
  12. Perera, K., Vidanapathirana, K.P. and Dissanayake, M.A.K.L. (2011), "Effect of the polymer host, Polyacrylonitrile on the performance of Li rechargeable cells", Sri Lankan J. Phys., 12, 25-31.
  13. Perera, K.S., Vidanapathirana, K.P., Jayamaha, B., Wewagama, L., Dissanayake, M.A.K.L., Senadeera, G.K.R. and Vignarooban, K. (2017), "Polyethylene oxide based nano composite polymer electrolytes for redox capacitors", J. Solid State Electrochem., 21(12), 3459-3465. https://doi.org/10.1007/s10008-017-3695-z
  14. Prabaharan, S.R.S., Vimala, R. and Zainal, Z. (2006), "Nanostructured mesoporous carbon as electrodes for super capacitors", J. Power Source., 161(1), 730-736. https://doi.org/10.1016/j.jpowsour.2006.03.074
  15. Tey, J.P., Careem, M.A., Yarmo, M.A. and Arof, A.K. (2016), "Durian shell based activated carbon electrode for EDLCs", Ionics, 22(7), 1209-1216. https://doi.org/10.1007/s11581-016-1640-2
  16. Wang, Y., Cao, J., Zhou, Y., Ougang, J.H., Jia, D. and Guo, L. (2012), "Ball milled graphite as an electrode material for high voltage super capacitors in neutral aqueous electrolyte", J. Solid State Electrochem., 159(5), A579-A583.
  17. Zhang, L.L., Zhou, Y. and Zhao, X.S. (2010), "Graphene based materials as super capacitor electrodes", J. Mater. Chem., 20(29), 5983-5992. https://doi.org/10.1039/c000417k