Issue 36, 2012

Excellent long-term cycling stability of La-doped Li4Ti5O12 anode material at high current rates

Abstract

La-doped Li4Ti5O12 (LLTO) was prepared by a simple approach using tetrabutyl titanate, LiOH·H2O and La(NO3)3·6H2O as raw materials, followed by sintering the dried mixture at 600 °C for 5 h. Without requiring any further treatments, the as-obtained LLTO could exhibit excellent long-term cycling stability, high coulombic efficiency close to 100% at various charge–discharge rates, outstanding capacity retention at high current rates of 10–50 C, remarkable performance in the temperature range from −40 to 60 °C, good cycling performance even subjected to overcharging to about 10 times of the reversible capacity. The La-doped LTO could be directly used as efficient anode materials for lithium-ion batteries.

Graphical abstract: Excellent long-term cycling stability of La-doped Li4Ti5O12 anode material at high current rates

Supplementary files

Article information

Article type
Paper
Submitted
01 Jun 2012
Accepted
01 Aug 2012
First published
03 Aug 2012

J. Mater. Chem., 2012,22, 19054-19060

Excellent long-term cycling stability of La-doped Li4Ti5O12 anode material at high current rates

Y. Bai, C. Gong, Y. Qi, N. Lun and J. Feng, J. Mater. Chem., 2012, 22, 19054 DOI: 10.1039/C2JM34523D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements