Lithium Storage in Li 4 Ti 5 O 12 Spinel: The Full Static Picture from Electron Microscopy
2012; Volume: 24; Issue: 24 Linguagem: Inglês
10.1002/adma.201200450
ISSN1521-4095
AutoresXia Lu, Liang Zhao, Xiaoqing He, Ruijuan Xiao, Lin Gu, Yong‐Sheng Hu, Hong Li, Zhaoxiang Wang, Xiaofeng Duan, Liquan Chen, Joachim Maier, Yuichi Ikuhara,
Tópico(s)Extraction and Separation Processes
ResumoThe 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.
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