Electrochemical performance of acicular Li4Ti5O12 anode material synthesized by ethanol-assisted hydrothermal method

DOI

10.2991/meita-15.2015.129How to use a DOI?

Keywords

Li4Ti5O12; ethanol-assisted; acicular particle; lithium ion batteries.

Abstract

Spinel Li4Ti5O12 material were prepared by ethanol-assisted hydrothermal method and sintered at different temperatures. It was found that all of the samples had cubic spinel structure without undesired impurities and the samples showed different morphology as the change of sintering temperature. The sample sintered 750 delivered a higher discharge capacity than the 700 and 800 - sample at all the tested C rates. At 10C charge–discharge rate, the obtained discharge capacity of the Li4Ti5O12 electrode sintered at 700 and 750 was about 45.7% and 63.7%, compared to that of a 0.1C rate, while the Li4Ti5O12 electrode sintered at 800 showed capacity retention of only 28.7% at the same C rate, which could be attributed the higher lithium diffusion coefficient and the lower impedance due to the shortened diffusion distance of lithium ions because of the shortening acicular particle.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Weiquan Shao
AU  - Shaou Chen
AU  - Lizhu He
AU  - Hailing Zhu
AU  - Yueqin Ban
AU  - Xiaojie Guo
AU  - Zhen Wang
AU  - Haifeng Zhao
AU  - Yingnan Zhang
PY  - 2015/08
DA  - 2015/08
TI  - Electrochemical performance of acicular Li4Ti5O12 anode material synthesized by ethanol-assisted hydrothermal method
BT  - Proceedings of the 2015 International Conference on Materials Engineering and Information Technology Applications
PB  - Atlantis Press
SP  - 708
EP  - 712
SN  - 2352-5401
UR  - https://doi.org/10.2991/meita-15.2015.129
DO  - 10.2991/meita-15.2015.129
ID  - Shao2015/08
ER  -