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Simple in situ synthesis of carbon-supported and nanosheet-assembled vanadium oxide for ultra-high rate anode and cathode materials of lithium ion batteries

Journal Article


Abstract


  • A simple and efficient precipitation method has been developed for the in situ synthesis of a two-dimensional vanadium oxide@carbon nanosheet (2D V2O5@C NS). The crystalline structure, morphology and electrochemical performance of the as-prepared material were characterized systematically. The results demonstrate that the thickness of nanosheet is about 50 nm, and a thin C shell is successfully coated in situ on the surface of the V2O5 NS core. Benefiting from the intrinsic increased conductivity of the 2D V2O5@C NS and its robust NS structure, when the as-synthesized material is used as an anode material, it exhibits large reversible discharge capacity (860 mA h g-1 at 0.5 A g-1), good cycling performance (a high capacity of 802 mA h g-1 at 1.0 A g-1 after 200 cycles) and an ultra-high rate capability (reversible capabilities of 705 mA h g-1 at 2.0 A g-1, and 554 mA h g-1 at 3.0 A g-1). As a cathode material, the material also shows superior rate performance (reversible capabilities of 189, 166, 147, 139, 132, and 126 mA h g-1 at 0.1, 0.2, 0.5, 0.8, 1.0, and 1.2 A g-1, respectively). This work demonstrates a novel method for preparing vanadium-based NS material for high-performance lithium ion batteries.

Authors


  •   Wang, Xingchao (external author)
  •   Jia, Wei (external author)
  •   Wang, Luxiang (external author)
  •   Haung, Yudai (external author)
  •   Guo, Yong (external author)
  •   Sun, Ying (external author)
  •   Jia, Dianzeng (external author)
  •   Pang, Wei Kong.
  •   Guo, Zaiping
  •   Tang, Xincun (external author)

Publication Date


  • 2016

Citation


  • Wang, X., Jia, W., Wang, L., Huang, Y., Guo, Y., Sun, Y., Jia, D., Pang, W. Kong., Guo, Z. & Tang, X. (2016). Simple in situ synthesis of carbon-supported and nanosheet-assembled vanadium oxide for ultra-high rate anode and cathode materials of lithium ion batteries. Journal of Materials Chemistry A, 4 (36), 13907-13915.

Scopus Eid


  • 2-s2.0-84987732424

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2229

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 13907

End Page


  • 13915

Volume


  • 4

Issue


  • 36

Place Of Publication


  • United Kingdom

Abstract


  • A simple and efficient precipitation method has been developed for the in situ synthesis of a two-dimensional vanadium oxide@carbon nanosheet (2D V2O5@C NS). The crystalline structure, morphology and electrochemical performance of the as-prepared material were characterized systematically. The results demonstrate that the thickness of nanosheet is about 50 nm, and a thin C shell is successfully coated in situ on the surface of the V2O5 NS core. Benefiting from the intrinsic increased conductivity of the 2D V2O5@C NS and its robust NS structure, when the as-synthesized material is used as an anode material, it exhibits large reversible discharge capacity (860 mA h g-1 at 0.5 A g-1), good cycling performance (a high capacity of 802 mA h g-1 at 1.0 A g-1 after 200 cycles) and an ultra-high rate capability (reversible capabilities of 705 mA h g-1 at 2.0 A g-1, and 554 mA h g-1 at 3.0 A g-1). As a cathode material, the material also shows superior rate performance (reversible capabilities of 189, 166, 147, 139, 132, and 126 mA h g-1 at 0.1, 0.2, 0.5, 0.8, 1.0, and 1.2 A g-1, respectively). This work demonstrates a novel method for preparing vanadium-based NS material for high-performance lithium ion batteries.

Authors


  •   Wang, Xingchao (external author)
  •   Jia, Wei (external author)
  •   Wang, Luxiang (external author)
  •   Haung, Yudai (external author)
  •   Guo, Yong (external author)
  •   Sun, Ying (external author)
  •   Jia, Dianzeng (external author)
  •   Pang, Wei Kong.
  •   Guo, Zaiping
  •   Tang, Xincun (external author)

Publication Date


  • 2016

Citation


  • Wang, X., Jia, W., Wang, L., Huang, Y., Guo, Y., Sun, Y., Jia, D., Pang, W. Kong., Guo, Z. & Tang, X. (2016). Simple in situ synthesis of carbon-supported and nanosheet-assembled vanadium oxide for ultra-high rate anode and cathode materials of lithium ion batteries. Journal of Materials Chemistry A, 4 (36), 13907-13915.

Scopus Eid


  • 2-s2.0-84987732424

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2229

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 13907

End Page


  • 13915

Volume


  • 4

Issue


  • 36

Place Of Publication


  • United Kingdom