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Synthesis and electrochemical performance of LiV 3O 8/polyaniline as cathode material for the lithium battery
Faculty of Engineering - Papers (Archive)
  • Xuan-Wen Gao, University of Wollongong
  • Jia-Zhao Wang, University of Wollongong
  • Shulei Chou, University of Wollongong
  • Hua-Kun Liu, University of Wollongong
RIS ID
67534
Publication Date
1-1-2012
Publication Details

Gao, X., Wang, J., Chou, S. & Liu, H. (2012). Synthesis and electrochemical performance of LiV 3O 8/polyaniline as cathode material for the lithium battery. Journal of Power Sources, 220 (December 15), 47-53.

Abstract

LiV3O8-polyaniline nanocomposites have been synthesized via chemical oxidative polymerization directed by the anionic surfactant sodium dodecyl benzene sulfate. The polyaniline particles are uniformly coated on the LiV3O8 nanorods. The composite with 12 wt.% polyaniline retains a discharge capacity of 204 mAh g-1 after 100 cycles and had better rate capability (175 mAh g-1 at 2 C and 145 mAh g-1 at 4 C) than the bare LiV3O8 electrode in the potential range of 1.5e4.0 V. The polyaniline coating can buffer the dissolution into the LiPF6 electrode that occurs in LiV3O8 during cycling. The charge transfer resistance of the composite electrode was much lower than that of the bare LiV3O8 electrode, indicating that polyaniline coating significantly increases the electrical conductivity between the LiV3O8 nanorods. Polyaniline is a conductive binder which buffers the dissolution of LiV3O8 into the electrolyte and reduces the contact resistance among nanorods, so performance of the composite is significantly improved.

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Citation Information
Xuan-Wen Gao, Jia-Zhao Wang, Shulei Chou and Hua-Kun Liu. "Synthesis and electrochemical performance of LiV 3O 8/polyaniline as cathode material for the lithium battery" (2012) p. 47 - 53
Available at: http://works.bepress.com/shulei/24/