Lithium Storage in Li4Ti5O12 Spinel: The Full Static Picture from Electron Microscopy

被引：275

作者：

Lu, Xia ^{[1
]}

Zhao, Liang ^{[1
]}

He, Xiaoqing ^{[1
]}

Xiao, Ruijuan ^{[1
]}

Gu, Lin ^{[1
,2
,3
]}

Hu, Yong-Sheng ^{[1
]}

Li, Hong ^{[1
]}

Wang, Zhaoxiang ^{[1
]}

Duan, Xiaofeng ^{[1
]}

Chen, Liquan ^{[1
]}

Maier, Joachim ^{[4
]}

Ikuhara, Yuichi ^{[2
,3
,5
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[2] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

[3] Japan Fine Ceram Ctr, Nanostruct Res Lab, Nagoya, Aichi 4568587, Japan

[4] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[5] Univ Tokyo, Inst Engn Innovat, Tokyo 1138654, Japan

来源：

ADVANCED MATERIALS | 2012年 / 24卷 / 24期

关键词：

scanning transmission electron microscopy; interfaces; lithium-ion batteries; ION BATTERIES; DEFECT CHEMISTRY; ANODE MATERIAL; SOLID-SOLUTION; LI4+XTI5O12; INSERTION; LIFEPO4; PERFORMANCE; BOUNDARIES; PYROLYSIS;

D O I：

10.1002/adma.201200450

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The full static picture of Li storage in Li4Ti5O12 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, Li4Ti5O12 is found to transform into Li7Ti5O12 on lithiation by developing a dislocation-free coherent hetero-interface.

引用

页码：3233 / 3238

页数：6

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