Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Effect of Carbon Content of Sulfur Electrode on the Electrochemical Properties of Lithium/Sulfur Battery Using PEO Electrolyte

유황전극의 탄소량 변화에 따른 리튬/유황 전지의 방전특성 변화

  • Kang, K.Y. (Carbonix, Inc., Technical Laboratory) ;
  • Ryu, H.S. (Global Leader Development Center for i-cube materials and parts, Gyeongsang National University) ;
  • Kim, J.S. (Global Leader Development Center for i-cube materials and parts, Gyeongsang National University) ;
  • Kim, K.W. (ITRC for Energy Storage and Conversion, Gyeongsang National University) ;
  • Ahn, J.H. (ITRC for Energy Storage and Conversion, Gyeongsang National University) ;
  • Lee, G.H. (Surface Technology Research Center, Korea Institute of Machinery and Materials) ;
  • Ahn, H.J. (ITRC for Energy Storage and Conversion, Gyeongsang National University)
  • 강근영 ((주)카보닉스) ;
  • 류호석 (경상대학교 아이큐브센터) ;
  • 김종선 (경상대학교 아이큐브센터) ;
  • 김기원 (경상대학교 IT용 에너지 저장 및 변환 센터) ;
  • 안주현 (경상대학교 IT용 에너지 저장 및 변환 센터) ;
  • 이건환 (한국기계연구원) ;
  • 안효준 (경상대학교 IT용 에너지 저장 및 변환 센터)
  • Published : 2006.09.15
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Abstract

Electric conductive material should be homogeneously mixed with sulfur in sulfur electrode fabrication of lithium/sulfur battery, because sulfur is electric insulator. In this paper electrochemical properties of Li/S battery was studied with various compositions of sulfur electrodes. When content of sulfur changed from 40 wt.% to 80 wt.%, the 60 wt.% sulfur electrode showed the maximum capacity of 1489 mAh/g-sulfur. Electrochemical properties of Li/S battery using 60 wt.% sulfur was also investigated with various carbon contents. The discharge capacity changed as a function of carbon contents. The optimum composition was 25 wt.% carbon for 60 wt.% sulfur electrode.

Keywords

References

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