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Electrochemical Properties of Poly(Styrenesulfonate)-Carbon Composite Anode for Organic Rechargeable Battery

유기이차전지를 위한 Poly(Styrenesulfonate)-Carbon 복합 음극의 전기화학적 특성

  • Lim, Ji-Eun (Department of Solar & Energy Engineering, Cheongju University) ;
  • Kang, Dong-Won (Department of Solar & Energy Engineering, Cheongju University) ;
  • Kim, Jae-Kwang (Department of Solar & Energy Engineering, Cheongju University)
  • 임지은 (청주대학교 태양광에너지공학과) ;
  • 강동원 (청주대학교 태양광에너지공학과) ;
  • 김재광 (청주대학교 태양광에너지공학과)
  • Received : 2016.09.11
  • Accepted : 2016.10.09
  • Published : 2016.11.30

Abstract

In this study, a polymer-carbon composite material is prepared for environmental-friendly organic anode. On poly(styrenesulfonate)(PSS)-carbon composite anode, the carbon is coated by PSS as a core-shell structure and the PSS-carbon composite anode has $524mAh\;g^{-1}$ theoretical capacity with <0.6V voltage. Moreover, the PSS-carbon composite anode shows $519.6mAh\;g^{-1}$, $461.2mAh\;g^{-1}$, $411.8mAh\;g^{-1}$ and $315.9mAh\;g^{-1}$ discharge capacities at 0.1, 0.5, 1 and 10 C, respectively, and stable cycle performance up to 30 cycles. The PSS-carbon composite anode, containing polystyrene and sulfonate functional groups, is suitable for high electrochemical properties organic rechargeable battery.

본 연구에서는 고분자와 탄소 물질을 복합화시켜 친환경의 유기 음극을 제조하였다. Poly(styrenesulfonate)(PSS)-carbon 복합 음극은 탄소 입자를 PSS이 둘러싸고 있는 core-shell 형태를 보이며 $524mAh\;g^{-1}$의 이론용량과 0.6 V 이하의 낮은 전압을 가진다. PSS-carbon 복합 음극은 0.1, 0.5, 1, 10C에서 각각 용량 $519.6mAh\;g^{-1}$, $461.2mAh\;g^{-1}$, $411.8mAh\;g^{-1}$, $315.9mAh\;g^{-1}$의 첫 번째 방전 용량을 가지면 30사이클까지 안정적인 주기 특성을 보여준다. Polystyrene 구조와 sulfonate 기능 기를 갖는 PSS와의 탄소 복합 전극은 유기 이차전지의 전기화학적 특성을 향상 시키기 적합한 음극활 물질로 여겨 진다.

Keywords

References

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