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author:

Hong, Z. (Hong, Z..) [1] | Lan, T. (Lan, T..) [2] | Xiao, F. (Xiao, F..) [3] | Zhang, H. (Zhang, H..) [4] | Wei, M. (Wei, M..) [5]

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Scopus

Abstract:

Ultrathin Li 4Ti 5O 12 (LTO) nanosheets were successfully synthesized for the first time using the ultrathin titanate nanowires as a precursor. The synthesized Li 4Ti 5O 12 nanosheets have a large surface area of 159.2m 2g -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:

anode; high performance; Li 4Ti 5O 12; lithium-ion battery; nanosheets

Community:

  • [ 1 ] [Hong, Z.]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 2 ] [Lan, T.]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 3 ] [Xiao, F.]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 4 ] [Zhang, H.]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 5 ] [Wei, M.]Institute of New Energy Technology and Nano-Materials, Fuzhou University, Fuzhou, Fujian 350002, China

Reprint 's Address:

  • [Hong, Z.]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: 1

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