Skip to main content
placeholder image

Electrochemical characterization of polyaniline-LiV3O 8 nanocomposite cathode material for lithium ion batteries

Journal Article


Abstract


  • Polyaniline-LiV3O8 (PANI-LiV3O 8) nanocomposite has been chemically synthesized by an oxidative polymerization. The structure and performance of the sample have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), charge-discharge tests, cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and the galvanostatic intermittent titration technique (GITT). In addition, the thermodynamics properties of as-prepared sample has also been studied. The PANI formed a network of electrically conductive paths among the LiV 3O8 particles, so the active LiV3O8 material can be fully utilized for lithium extraction and insertion reactions and PANI-LiV3O8 nanocomposite exhibits much better electrochemical performance than bare LiV3O8. PANI incorporation in LiV3O8 could decrease the charge transfer resistance, increase the lithium diffusion coefficient during the lithiation process and improve the electrochemical reversibility. �� 2013 Elsevier Ltd. All rights reserved.

UOW Authors


  •   Guo, Haipeng (external author)

Publication Date


  • 2013

Citation


  • Guo, H., Liu, L., Wei, Q., Shu, H., Yang, X., Yang, Z., . . . Wang, X. (2013). Electrochemical characterization of polyaniline-LiV3O 8 nanocomposite cathode material for lithium ion batteries. Electrochimica Acta, 94, 113-123. doi:10.1016/j.electacta.2013.01.127

Scopus Eid


  • 2-s2.0-84875136428

Start Page


  • 113

End Page


  • 123

Volume


  • 94

Issue


Place Of Publication


Abstract


  • Polyaniline-LiV3O8 (PANI-LiV3O 8) nanocomposite has been chemically synthesized by an oxidative polymerization. The structure and performance of the sample have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), charge-discharge tests, cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and the galvanostatic intermittent titration technique (GITT). In addition, the thermodynamics properties of as-prepared sample has also been studied. The PANI formed a network of electrically conductive paths among the LiV 3O8 particles, so the active LiV3O8 material can be fully utilized for lithium extraction and insertion reactions and PANI-LiV3O8 nanocomposite exhibits much better electrochemical performance than bare LiV3O8. PANI incorporation in LiV3O8 could decrease the charge transfer resistance, increase the lithium diffusion coefficient during the lithiation process and improve the electrochemical reversibility. �� 2013 Elsevier Ltd. All rights reserved.

UOW Authors


  •   Guo, Haipeng (external author)

Publication Date


  • 2013

Citation


  • Guo, H., Liu, L., Wei, Q., Shu, H., Yang, X., Yang, Z., . . . Wang, X. (2013). Electrochemical characterization of polyaniline-LiV3O 8 nanocomposite cathode material for lithium ion batteries. Electrochimica Acta, 94, 113-123. doi:10.1016/j.electacta.2013.01.127

Scopus Eid


  • 2-s2.0-84875136428

Start Page


  • 113

End Page


  • 123

Volume


  • 94

Issue


Place Of Publication