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Enhanced electrochemical performance of MoS 2 for lithium ion batteries by simple chemical lithiation

Journal Article


Abstract


  • Commercial MoS 2 was lithiated by soaking in butyllithium in argon atmosphere. The lithiated samples (LixMoS 2) exhibited greatly improved electrochemical performance. Li xMoS 2 showed a high reversible capacity of 669.5 mAh g -1 and excellent cycling stability, with an average capacity loss of merely 0.065% per cycle. The rate capability of the Li xMoS 2 electrode was also improved compared to that of the unlithiated MoS 2 electrode. The x-ray diffraction and high resolution transmission electron microscopy (TEM) results prove that there was an increase in the c lattice parameter for the lithiated material. The magnetic properties and evaluations of conductivity in MoS 2 and Li xMoS 2 show that the electric conductivity of Li xMoS 2 is much higher than that of MoS 2. TEM images after 11 cycles demonstrated that the Li xMoS 2 electrode consisted of more uniform small particles, while big particle blocks could be observed for the MoS 2 electrode. All of these might be favourable for the electrochemical performance. © 2012 The Chemical Society Located in Taipei & Wiley-VCH Verlag GmbH & Co. KGaA,Weinheim.

Authors


  •   Li, Dan (external author)
  •   Zhang, Chaofeng (external author)
  •   Du, Guodong (external author)
  •   Zeng, R (external author)
  •   Wang, Shiquan (external author)
  •   Guo, Zaiping
  •   Chen, Zhixin
  •   Liu, Hua K.

Publication Date


  • 2012

Citation


  • Li, D., Zhang, C., Du, G., Zeng, R., Wang, S., Guo, Z., Chen, Z. & Liu, H. K. (2012). Enhanced electrochemical performance of MoS 2 for lithium ion batteries by simple chemical lithiation. Journal of the Chinese Chemical Society, 59 (10), 1196-1200.

Scopus Eid


  • 2-s2.0-84867200630

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5239

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 1196

End Page


  • 1200

Volume


  • 59

Issue


  • 10

Place Of Publication


  • Taiwan, Republic of China

Abstract


  • Commercial MoS 2 was lithiated by soaking in butyllithium in argon atmosphere. The lithiated samples (LixMoS 2) exhibited greatly improved electrochemical performance. Li xMoS 2 showed a high reversible capacity of 669.5 mAh g -1 and excellent cycling stability, with an average capacity loss of merely 0.065% per cycle. The rate capability of the Li xMoS 2 electrode was also improved compared to that of the unlithiated MoS 2 electrode. The x-ray diffraction and high resolution transmission electron microscopy (TEM) results prove that there was an increase in the c lattice parameter for the lithiated material. The magnetic properties and evaluations of conductivity in MoS 2 and Li xMoS 2 show that the electric conductivity of Li xMoS 2 is much higher than that of MoS 2. TEM images after 11 cycles demonstrated that the Li xMoS 2 electrode consisted of more uniform small particles, while big particle blocks could be observed for the MoS 2 electrode. All of these might be favourable for the electrochemical performance. © 2012 The Chemical Society Located in Taipei & Wiley-VCH Verlag GmbH & Co. KGaA,Weinheim.

Authors


  •   Li, Dan (external author)
  •   Zhang, Chaofeng (external author)
  •   Du, Guodong (external author)
  •   Zeng, R (external author)
  •   Wang, Shiquan (external author)
  •   Guo, Zaiping
  •   Chen, Zhixin
  •   Liu, Hua K.

Publication Date


  • 2012

Citation


  • Li, D., Zhang, C., Du, G., Zeng, R., Wang, S., Guo, Z., Chen, Z. & Liu, H. K. (2012). Enhanced electrochemical performance of MoS 2 for lithium ion batteries by simple chemical lithiation. Journal of the Chinese Chemical Society, 59 (10), 1196-1200.

Scopus Eid


  • 2-s2.0-84867200630

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5239

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 1196

End Page


  • 1200

Volume


  • 59

Issue


  • 10

Place Of Publication


  • Taiwan, Republic of China