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author:

Hong, Zhensheng (Hong, Zhensheng.) [1] | Lan, Tongbin (Lan, Tongbin.) [2] | Xiao, Fuyu (Xiao, Fuyu.) [3] | Zhang, Huixing (Zhang, Huixing.) [4] | Wei, Mingdeng (Wei, Mingdeng.) [5]

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Abstract:

Ultrathin Li4Ti5O12 (LTO) nanosheets were successfully synthesized for the first time using the ultrathin titanate nanowires as a precursor. The synthesized Li4Ti5O 12 nanosheets have a large surface area of 159.2m2g -1 and their thickness was found to be ca. 57 nm. These nanosheets were highly crystalline and used as anode materials in rechargeable lithium-ion batteries. A stable capacity of 150 mAhg-1 for LTO nanosheets can be retained after 70 cycles at a current density of 1 Ag-1 in the voltage window of 2.51.0 V. It is notable that a large capacity of 267.5 mAhg-1 was obtained at the second discharge and 166 mAhg-1 can be retained after 70 cycles at 1 Ag-1 in the voltage range of 2.5-0.02 V. These results indicate that the anode materials made of spinel LTO nanosheets displayed a large reversible capacity at a high charge/discharge rate. © 2011 World Scientific Publishing Company.

Keyword:

Anodes Ions Lithium compounds Lithium-ion batteries Nanosheets Titanium compounds

Community:

  • [ 1 ] [Hong, Zhensheng]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 2 ] [Lan, Tongbin]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 3 ] [Xiao, Fuyu]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 4 ] [Zhang, Huixing]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 5 ] [Wei, Mingdeng]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China

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Source :

Functional Materials Letters

ISSN: 1793-6047

Year: 2011

Issue: 4

Volume: 4

Page: 389-393

0 . 7 2 4

JCR@2011

1 . 2 0 0

JCR@2023

JCR Journal Grade:3

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 30

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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