Single-crystalline Li4Ti5O12 nanorods and their application in high rate capability Li4Ti5O 12/LiMn2O4 full cells

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Liu Jiang Xi
  • Hong Kang Wang
  • Shi Liu Yang
  • Ru Guang Ma
  • Zhou Guang Lu
  • Chen Wei Cao
  • Kwan Lan Leung
  • Jian Qiu Deng

Detail(s)

Original languageEnglish
Pages (from-to)222-229
Journal / PublicationJournal of Power Sources
Volume242
Online published29 Apr 2013
Publication statusPublished - 15 Nov 2013

Abstract

Single-crystalline Li4Ti5O12 nanorods have been successfully prepared through a molten salt method, followed by a precipitation method, and characterized with X-ray powder diffractometry, field-emission scanning electron microscopy, and transmission electron microscope. Their electrochemical properties have been studied by charge/discharge cycling and cyclic voltammetry. The results show that the single-crystalline Li4Ti5O12 nanorods reveal high capacity, excellent rate capability and cycle stability. The discharge capacity up to 176.4 mAh g-1 at 0.1 C rate is achieved. When tested at 10 C rate, the first discharge capacity reaches 135.9 mAh g-1, and the capacity retention is more than 61.5% after 1500 cycles. Furthermore, high rate capability Li4Ti5O12/LiMn 2O4 full cells have been made using Li4Ti 5O12 nanorods as the negative electrode, which display superior cycle stability at high rate. The discharge capacity and the mass energy density sequentially reach 40 mAh g-1 and 86.4 Wh kg -1 at 10 C rate, while the capacity retention is about 60% after 1000 cycles. © 2013 Elsevier B.V. All rights reserved.

Research Area(s)

  • High rate capability, Lithium ion battery, Lithium titanate, Long lifespan, Nanorods

Citation Format(s)

Single-crystalline Li4Ti5O12 nanorods and their application in high rate capability Li4Ti5O 12/LiMn2O4 full cells. / Xi, Liu Jiang; Wang, Hong Kang; Yang, Shi Liu; Ma, Ru Guang; Lu, Zhou Guang; Cao, Chen Wei; Leung, Kwan Lan; Deng, Jian Qiu; Rogach, Andrey L.; Chung, C. Y.

In: Journal of Power Sources, Vol. 242, 15.11.2013, p. 222-229.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review