Lithium storage in Li4Ti5O12 spinel: the full static picture from electron microscopy

Xia Lu; Liang Zhao; Xiaoqing He; Ruijuan Xiao; Lin Gu; Yong-Sheng Hu; Hong Li; Zhaoxiang Wang; Xiaofeng Duan; Liquan Chen; Joachim Maier; Yuichi Ikuhara

doi:10.1002/adma.201200450

Lithium storage in Li4Ti5O12 spinel: the full static picture from electron microscopy

Adv Mater. 2012 Jun 26;24(24):3233-8. doi: 10.1002/adma.201200450. Epub 2012 May 16.

Authors

Xia Lu¹, Liang Zhao, Xiaoqing He, Ruijuan Xiao, Lin Gu, Yong-Sheng Hu, Hong Li, Zhaoxiang Wang, Xiaofeng Duan, Liquan Chen, Joachim Maier, Yuichi Ikuhara

Affiliation

¹ Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, PR of China.

PMID: 22588801
DOI: 10.1002/adma.201200450

Abstract

The full static picture of Li storage in Li(4)Ti(5)O(12) is derived using the latest spherical aberration-corrected scanning transmission electron microscopy and first-principles calculations. The accommodation of the additional Li(+) is directly visualized and the distribution of electrons introduced by lithium insertion deduced. Moreover, Li(4)Ti(5)O(12) is found to transform into Li(7)Ti(5)O(12) on lithiation by developing a dislocation-free coherent hetero-interface.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electric Power Supplies*
Electrodes
Lithium / chemistry*
Microscopy, Electron, Scanning Transmission*
Models, Molecular
Molecular Conformation
Titanium / chemistry*

Substances

Lithium
Titanium