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Self-Assembled LiNi1/3Co1/3Mn1/3O2 Nanosheet Cathode with High Electrochemical Performance

Journal Article


Abstract


  • We have fabricated self-assembled LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets via a facile synthesis method combining coprecipitation with the hydrothermal method. Scanning electron microscopic images show that the self-assembly processes for the LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets depend on the reaction time and temperature. The nanosheet structure is uniform, and the width and thickness of the nanosheets are in the ranges of 0.7-1.5 μm and 10-100 nm, respectively. As a cathode material, the as-synthesized LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets have demonstrated outstanding electrochemical performance. The initial specific capacity was 193 mAh g -1 , and the capacity was maintained at 189 mAh g -1 after 100 cycles at 0.2 C, and 155 mAh g -1 at 1 C (after 1000 cycles). The LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets have efficient contact with the electrolyte and short Li + diffusion paths, as well as sufficient void spaces to accommodate large volume variation. The nanosheets are thus beneficial to the diffusion of Li + in the electrode. The enhanced electrical conductance and excellent capacity demonstrate the great potential of LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets for energy storage applications.

Authors


  •   Zheng, Hao (external author)
  •   Chen, Xiaoming (external author)
  •   Yang, Yun (external author)
  •   Li, Lin (external author)
  •   Li, Guohua (external author)
  •   Guo, Zaiping
  •   Feng, Chuanqi (external author)

Publication Date


  • 2017

Citation


  • Zheng, H., Chen, X., Yang, Y., Li, L., Li, G., Guo, Z. & Feng, C. (2017). Self-Assembled LiNi1/3Co1/3Mn1/3O2 Nanosheet Cathode with High Electrochemical Performance. ACS Applied Materials and Interfaces, 9 (45), 39560-39568.

Scopus Eid


  • 2-s2.0-85034649097

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2887

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 39560

End Page


  • 39568

Volume


  • 9

Issue


  • 45

Place Of Publication


  • United States

Abstract


  • We have fabricated self-assembled LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets via a facile synthesis method combining coprecipitation with the hydrothermal method. Scanning electron microscopic images show that the self-assembly processes for the LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets depend on the reaction time and temperature. The nanosheet structure is uniform, and the width and thickness of the nanosheets are in the ranges of 0.7-1.5 μm and 10-100 nm, respectively. As a cathode material, the as-synthesized LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets have demonstrated outstanding electrochemical performance. The initial specific capacity was 193 mAh g -1 , and the capacity was maintained at 189 mAh g -1 after 100 cycles at 0.2 C, and 155 mAh g -1 at 1 C (after 1000 cycles). The LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets have efficient contact with the electrolyte and short Li + diffusion paths, as well as sufficient void spaces to accommodate large volume variation. The nanosheets are thus beneficial to the diffusion of Li + in the electrode. The enhanced electrical conductance and excellent capacity demonstrate the great potential of LiNi 1/3 Co 1/3 Mn 1/3 O 2 nanosheets for energy storage applications.

Authors


  •   Zheng, Hao (external author)
  •   Chen, Xiaoming (external author)
  •   Yang, Yun (external author)
  •   Li, Lin (external author)
  •   Li, Guohua (external author)
  •   Guo, Zaiping
  •   Feng, Chuanqi (external author)

Publication Date


  • 2017

Citation


  • Zheng, H., Chen, X., Yang, Y., Li, L., Li, G., Guo, Z. & Feng, C. (2017). Self-Assembled LiNi1/3Co1/3Mn1/3O2 Nanosheet Cathode with High Electrochemical Performance. ACS Applied Materials and Interfaces, 9 (45), 39560-39568.

Scopus Eid


  • 2-s2.0-85034649097

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2887

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 39560

End Page


  • 39568

Volume


  • 9

Issue


  • 45

Place Of Publication


  • United States