Skip to main content
placeholder image

Improved rate capability and cycling stability of novel terbium-doped lithium titanate for lithium-ion batteries

Journal Article


Abstract


  • Li4Ti4.94Tb0.06O12-δ has been synthesized via a facile co-precipitation method. The structure and morphology of the as-prepared sample have been characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and particle size distribution analysis. The results show that Tb3+ is successfully doped into the Li4Ti5O12 structure and that the average particle size is about 111 nm. Li4Ti4.94Tb0.06O12-δ exhibits a high initial discharge capacity of 166.5 mAh g-1 at 20 C, and the discharge capacity retention is nearly 93% after 500 cycles. In addition, the sample shows much improved rate capability at 20 C compared with pure Li4Ti5O12. Tb3+ doping not only enhances the electronic conductivity, but also improves the Li+ ion diffusivity in Li4Ti5O12, which indicates that Tb3+ doping is beneficial for promoting the electrochemical performance of Li4Ti5O12.

UOW Authors


  •   Zhang, Ping (external author)
  •   Haung, Yudai (external author)
  •   Jia, Wei (external author)
  •   Cai, Yanjun (external author)
  •   Wang, Xingchao (external author)
  •   Guo, Yong (external author)
  •   Jia, Dianzeng (external author)
  •   Sun, Zhipeng (external author)
  •   Guo, Zaiping

Publication Date


  • 2016

Citation


  • Zhang, P., Huang, Y., Jia, W., Cai, Y., Wang, X., Guo, Y., Jia, D., Sun, Z. & Guo, Z. (2016). Improved rate capability and cycling stability of novel terbium-doped lithium titanate for lithium-ion batteries. Electrochimica Acta, 210 935-941.

Scopus Eid


  • 2-s2.0-84975312142

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2192

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 935

End Page


  • 941

Volume


  • 210

Place Of Publication


  • United Kingdom

Abstract


  • Li4Ti4.94Tb0.06O12-δ has been synthesized via a facile co-precipitation method. The structure and morphology of the as-prepared sample have been characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and particle size distribution analysis. The results show that Tb3+ is successfully doped into the Li4Ti5O12 structure and that the average particle size is about 111 nm. Li4Ti4.94Tb0.06O12-δ exhibits a high initial discharge capacity of 166.5 mAh g-1 at 20 C, and the discharge capacity retention is nearly 93% after 500 cycles. In addition, the sample shows much improved rate capability at 20 C compared with pure Li4Ti5O12. Tb3+ doping not only enhances the electronic conductivity, but also improves the Li+ ion diffusivity in Li4Ti5O12, which indicates that Tb3+ doping is beneficial for promoting the electrochemical performance of Li4Ti5O12.

UOW Authors


  •   Zhang, Ping (external author)
  •   Haung, Yudai (external author)
  •   Jia, Wei (external author)
  •   Cai, Yanjun (external author)
  •   Wang, Xingchao (external author)
  •   Guo, Yong (external author)
  •   Jia, Dianzeng (external author)
  •   Sun, Zhipeng (external author)
  •   Guo, Zaiping

Publication Date


  • 2016

Citation


  • Zhang, P., Huang, Y., Jia, W., Cai, Y., Wang, X., Guo, Y., Jia, D., Sun, Z. & Guo, Z. (2016). Improved rate capability and cycling stability of novel terbium-doped lithium titanate for lithium-ion batteries. Electrochimica Acta, 210 935-941.

Scopus Eid


  • 2-s2.0-84975312142

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2192

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 935

End Page


  • 941

Volume


  • 210

Place Of Publication


  • United Kingdom