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Issue 36, 2012
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Excellent long-term cycling stability of La-doped Li4Ti5O12 anode material at high current rates

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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

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Supplementary files

Article information


Submitted
01 Jun 2012
Accepted
01 Aug 2012
First published
03 Aug 2012

J. Mater. Chem., 2012,22, 19054-19060
Article type
Paper

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

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