Electrochemistry and local structure of nano-sized Li4/3Me5/3O4 (Me=Mn, Ti) spinels

被引：61

作者：

Julien, CM

Zaghib, K

机构：

[1] Inst Rech Hydro Quebec, Varennes, PQ J3X 1S1, Canada

[2] Univ Paris 06, CNRS, UMR 7603, Lab Milieux Desordonnes & Heterogenes, F-75252 Paris 05, France

来源：

ELECTROCHIMICA ACTA | 2004年 / 50卷 / 2-3期

关键词：

lithium batteries; spinels; Li4Ti5O12; Li4Mn5O12; local structure;

D O I：

10.1016/j.electacta.2004.03.052

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report the structural and electrochemical characteristics of Li4/3Me5/3O4 (Me=Ti, Mn) spine] materials exhibiting nanostructured morphology. We have applied Raman and FTIR spectroscopy to study the local structure. Vibrational features are in good concordance with the factor group analysis (O-h(7) symmetry). The zero-strain insertion material Li4/3Ti5/3O4 delivers 150 mAh/g while Li4/3Mn5/3O4 inserts 2.8 Li/mole of oxide leading to a specific capacity of 158 mAh/g. (C) 2004 Elsevier Ltd. All rights reserved.

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页码：411 / 416

页数：6

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