Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on the Effects of Multi-Walled Carbon Nanotubes on Electrochemical Performances of Li/S Secondary Batteries

Multi-Walled Carbon Nanotubes가 Li/S 이차전지의 전기화학적 성능에 미치는 영향

  • Song, Min-Sang (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Han, Sang-Cheol (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kim, Hyun-Seok (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kim, Jin-Ho (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kang, Yong-Mook (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Ahn, Hyo-Jun (Department of Metallurgical & Materials Engineering, Gyeongsang National University) ;
  • Lee, Jal-Young (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology)
  • 송민상 (한국과학기술원 재료공학과) ;
  • 한상철 (한국과학기술원 재료공학과) ;
  • 김현석 (한국과학기술원 재료공학과) ;
  • 김진호 (한국과학기술원 재료공학과) ;
  • 강용묵 (한국과학기술원 재료공학과) ;
  • 안효준 (경상대학교 금속재료공학과) ;
  • 이재영 (한국과학기술원 재료공학과)
  • Published : 2003.06.15
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Abstract

Li/S 이차전지의 유황양극의 전기전도도를 향상시키고 유황이 충방전시 전해질내로 용출되는 것을 방지하기 위하여 multi-walled carbon nanotubes (MWNTs)를 thermal CVD 방법으로 제조하여 유황양극에 첨가하였다. 실험결과 첫 사이클에서 Li/S 이차전지의 방전용량은 485mAh/g-sulfur이었고, MWNT 첨가 이후에 유황양극의 cycle life와 rate-capability가 향상되는 것을 관찰할 수 있었다. 그러므로 MWNT는 polysulfide를 유황양극에 흡착시키는 동시에 good electric conductor로서 작용한다는 것을 알 수 있었다.

Keywords

References

  1. M.-Y. Chu, US Patent 5,814,420, 1998
  2. T. Skotheim, US Patent 5,601,947, 1997
  3. D. Marmorstein, T.H. Yu, K.A. Striebel, and E.J. Caims, J. Power Sources Vol. 89, 2000, p. 219 https://doi.org/10.1016/S0378-7753(00)00432-8
  4. M. Y. Chu, US Patent US Patent 5,516,598, 1996
  5. R.D. Rauh, K.M. Abraham, G.F. Pearson, J.K. Surprenant, and S.B. Brummer, J. Electrochem. Soc., Vol. 126, 1979, p. 523-527 https://doi.org/10.1149/1.2129079
  6. H. Yamin and E. Peled, J-Power Sources, Vol. 9, 1983, p. 281-287 https://doi.org/10.1016/0378-7753(83)87029-3
  7. H. Yamin, A. Gorenshtein, J. Penciner, Y. Stemberg, and E. Peled, J. Electrochem. Soc., Vol. 135, 1988, pp. 1045-1048 https://doi.org/10.1149/1.2095868
  8. G.G. Bikbaeva, A.A. Gavrilova, V.S. Kolosnitsyn, Russ. J. Electrochem., Vol. 29, 1993, p. 715
  9. P. Degott, doctorial thesis, Polymere Carbone-Soufre Synthese et Proprietes Electrochimiques at llnstitut National Polytechnique de Grenoble, 1986, pp.117-119
  10. M. Y. Chu, US Patent No. 5,523,179, 1996
  11. D. Mannorstein, T.H. Yu, K.A. Striebel, F.R. McLamon, J. Hou, E.J. Caims, J. Povver Sources, Vol. 89, 2000, p. 219-226 https://doi.org/10.1016/S0378-7753(00)00432-8
  12. G. Eichinger and J. Besenhard, J. Electroanal. Chem. Interfacial Electrochem., Vol. 72, 1976, p. 1-31 https://doi.org/10.1016/S0022-0728(76)80072-1
  13. D.W. Murphy and J.N. Carides, J. Electrochem. Soc., Vol. 126, 1979, p. 349-351 https://doi.org/10.1149/1.2129041
  14. Cheon Byoung Ho, doctoral thesis, Electrochemical properties and battery performances of Secondary Lithium-SuIfur Polymer Battery, at Korea Advance Institute of Science and Technology, 2001
  15. Cheon Sang Eun. doctoral thesis, Studies on property Changes during Electrochemical Reaction and Performance Improvement of A Lithium Sulfur Secondary Battery, at Ajou University, 2002
  16. Gorkovenko, US Patent 6,210,831, Bl, 2001
  17. J. S. Sakamoto and B. Dunn, J. Electrochem. Soc., Vol. 149(1), 2002, pp. A26-A30 https://doi.org/10.1149/1.1425791