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The Research on the Nanoparticles Prepared by Arc-Discharge Method as Anode Materials for Lithium Ion Batteries

아크방전으로 제조된 나노입자를 이용한 리튬이온전지 음극재료의 연구

  • Kim, Hyeong-Jo (Department of Precision Mechanical Engineering, Graduation School, Gyeongsang National University) ;
  • Tulugan, Kelimu (Department of Precision Mechanical Engineering, Graduation School, Gyeongsang National University) ;
  • Kim, Hyung-Jin (Department of Mechanic System Engineering, Gyeongsang National University) ;
  • Park, Won-Jo (Department of Energy Mechanical Engineering, Gyeongsang National University)
  • 김형조 (경상대학교대학원 정밀기계공학과) ;
  • ;
  • 김형진 (경상대학교 기계시스템공학과) ;
  • 박원조 (경상대학교 에너지기계공학과)
  • Received : 2012.11.28
  • Accepted : 2013.01.21
  • Published : 2013.02.28

Abstract

Tin and Tinoxide nanoparticles were prepared by arc-discharge nanopowder process. The negative electrode were fabricated using Tin and Tinoxide nanopower. The microstructure and electrochemistry properties were investigated and compared between Tin and Tinoxide. The oxidation film has microstructure of core/shell type and the shell which was attached around Tin nanoparticle consisted of amorphous $SnO_2$. The shape of Tinoxide nanoparticles was formed with irregular shape in comparison with Tin particle. Initial discharge capcity of Tinoxide electrode possesed about 1000mAh/g, which is about 320mAh/g higher than Tin electrode. Irreversible capacity of Tin electrode is much higher than Tinoxide. The cycle performance of Tinoxide electrode was indicated that is batter than Tin. The Tin negative electrode lost most of capacity after 4 cycle but Tinoxide electrode still retained the capacity. The Tinoxide does show some promise as Li-ion battery anode due to their large reversible capacity at low potentials.

Keywords

References

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