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Korean Journal of Chemical Engineering

, Volume 36, Issue 11, pp 1940–1947 | Cite as

Effect of emulsified polymer binders on the performance of activated carbon electrochemical double-layer capacitors

  • Seul Lee
  • Bolormaa Gendensuren
  • Boyeon Kim
  • Sangik Jeon
  • Young-Hyun Cho
  • Taewon Kim
  • Eun-Suok OhEmail author
Materials (Organic, Inorganic, Electronic, Thin Films)
  • 55 Downloads

Abstract

The electrochemical properties of two water-emulsified polymers, styrene-butadiene rubber, and polytetrafluoroethylene, on activated carbon electrochemical capacitors were systematically compared. All electrodes were fabricated with different ratios of styrene-butadiene rubber and polytetrafluoroethylene: 4 : 0, 3 : 1, 2 : 2, and 1 : 3. A good dispersion of styrene-butadiene rubber nanoparticles maintains mesopores in activated carbon, whereas an increase in polytetrafluoroethylene binder content in the electrodes reduces mesoporous surface area significantly due to the lump polytetrafluoroethylene structure coagulated by smashed particles in water. The relatively strong adhesion of the styrene-butadiene rubber binder also leads to better cyclability for extremely long cycles and the rate capability with various current densities at room temperature. At a high temperature of 60 °C, however, the electrodes containing polytetrafluoroethylene binder showed comparable high specific capacitance due to the high thermal stability of polytetrafluoroethylene.

Keywords

Electrochemical Double-layer Capacitor Emulsified Binder Styrene-butadiene Rubber Polytetrafluoroethylene Activated Carbon 

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Notes

Acknowledgements

This study was financially supported by the Ministry of Trade, Industry, and Energy (MOTIE), Korea, under the “Regional Specialized Industry Development Program” supervised by the Korea Institute for Advancement of Technology (KIAT) (R0005989).

Supplementary material

11814_2019_388_MOESM1_ESM.pdf (108 kb)
Effect of emulsified polymer binders on the performance of activated carbon electrochemical double-layer capacitors

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Copyright information

© The Korean Institute of Chemical Engineers 2019

Authors and Affiliations

  • Seul Lee
    • 1
  • Bolormaa Gendensuren
    • 1
  • Boyeon Kim
    • 2
  • Sangik Jeon
    • 2
  • Young-Hyun Cho
    • 3
  • Taewon Kim
    • 3
  • Eun-Suok Oh
    • 1
    Email author
  1. 1.School of Chemical EngineeringUniversity of UlsanUlsanKorea
  2. 2.Solution Advanced Technology Co. Ltd.Siheung-si, Gyeonggi-doKorea
  3. 3.Ulsan TechnoparkUlsanKorea

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