Film-shaped sol-gel Li4Ti5O12 electrode for lithium-ion microbatteries

被引：40

作者：

Mosa, J. ^{[1
]}

Velez, J. F. ^{[1
]}

Lorite, I. ^{[1
]}

Arconada, N. ^{[1
]}

Aparicio, M. ^{[1
]}

机构：

[1] Inst Ceram & Vidrio CSIC, Madrid 28049, Spain

来源：

JOURNAL OF POWER SOURCES | 2012年 / 205卷

关键词：

All-Solid-State; Li-ion microbatteries; Sol-gel; Li4Ti5O12; Nanocrystalline materials; Spinel; THIN-FILM; ELECTROCHEMICAL PERFORMANCE; ANODE MATERIAL; SPINEL LI4TI5O12; MOLTEN-SALT; INSERTION; LI; TIO2; TRANSITION; COMPOSITE;

D O I：

10.1016/j.jpowsour.2012.01.090

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Homogeneous and transparent film-shaped spinel Li4Ti5O12 electrodes on gold coated quartz were synthesized by sol-gel and a dipping procedure after thermal treatments at 700 degrees C. The influence of the lithium precursor content on the phase composition, structure and electrochemical behavior of this material was studied. Spectral ellipsometry measurements and SEM-EDX analysis indicate an average thickness between 385 and 560 nm. Rutile TiO2 is detected using grazing incidence X-ray analysis and Micro-Raman in compositions with a lower content of lithium. Good galvanostatic cycling and very flat discharge-charge profiles confirm the high purity of Li4Ti5O12 electrodes obtained with the higher lithium content composition. (C) 2012 Elsevier B.V. All rights reserved.

引用

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页码：491 / 494

页数：4

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