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High rate capability core-shell lithium titanate@ceria nanosphere anode material synthesized by one-pot co-precipitation for lithium-ion batteries

Journal Article


Abstract


  • Core-shell Li4Ti5O12@CeO2 nanosphere has been synthesized by a one-pot co-precipitation method. The structure and morphology of the as-prepared materials have been analyzed by X-ray diffraction and transmission electron microscopy. The results show that CeO2 is successfully coated on the surface of the Li 4Ti5O12 besides partial doping of Ce 4+ into the Li4Ti5O12 structure. The Li4Ti5O12@CeO2 nanosphere exhibits excellent capacity of 152 mAh g-1 even after 180 cycles at 10 C, with no noticeable capacity fading. Furthermore, the sample shows much improved rate capability at 40 C compared with pure Li4Ti5O 12 when used as anode material for lithium-ion batteries. The introduction of CeO2 enhances not only the electric conductivity of Li4Ti5O12, but also the lithium ion diffusivity in Li4Ti5O12, resulting in significantly improved electrochemical performance of the Li4Ti5O 12.

Authors


  •   Yang, Xinjie (external author)
  •   Wang, Xingchao (external author)
  •   Jia, Dianzeng (external author)
  •   Pang, Wei Kong.
  •   Guo, Zaiping
  •   Tang, Xincun (external author)

Publication Date


  • 2014

Citation


  • Yang, X., Huang, Y., Wang, X., Jia, D., Pang, W., Guo, Z. & Tang, X. (2014). High rate capability core-shell lithium titanate@ceria nanosphere anode material synthesized by one-pot co-precipitation for lithium-ion batteries. Journal of Power Sources, 257 280-285.

Scopus Eid


  • 2-s2.0-84894641682

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2108

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 280

End Page


  • 285

Volume


  • 257

Place Of Publication


  • Switzerland

Abstract


  • Core-shell Li4Ti5O12@CeO2 nanosphere has been synthesized by a one-pot co-precipitation method. The structure and morphology of the as-prepared materials have been analyzed by X-ray diffraction and transmission electron microscopy. The results show that CeO2 is successfully coated on the surface of the Li 4Ti5O12 besides partial doping of Ce 4+ into the Li4Ti5O12 structure. The Li4Ti5O12@CeO2 nanosphere exhibits excellent capacity of 152 mAh g-1 even after 180 cycles at 10 C, with no noticeable capacity fading. Furthermore, the sample shows much improved rate capability at 40 C compared with pure Li4Ti5O 12 when used as anode material for lithium-ion batteries. The introduction of CeO2 enhances not only the electric conductivity of Li4Ti5O12, but also the lithium ion diffusivity in Li4Ti5O12, resulting in significantly improved electrochemical performance of the Li4Ti5O 12.

Authors


  •   Yang, Xinjie (external author)
  •   Wang, Xingchao (external author)
  •   Jia, Dianzeng (external author)
  •   Pang, Wei Kong.
  •   Guo, Zaiping
  •   Tang, Xincun (external author)

Publication Date


  • 2014

Citation


  • Yang, X., Huang, Y., Wang, X., Jia, D., Pang, W., Guo, Z. & Tang, X. (2014). High rate capability core-shell lithium titanate@ceria nanosphere anode material synthesized by one-pot co-precipitation for lithium-ion batteries. Journal of Power Sources, 257 280-285.

Scopus Eid


  • 2-s2.0-84894641682

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2108

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 280

End Page


  • 285

Volume


  • 257

Place Of Publication


  • Switzerland