Effect of protecting metal oxide (Co3O4) layer on electrochemical properties of spinel Li1.1Mn1.9O4 as a cathode material for lithium battery applications

被引：30

作者：

Lee, Ki-Soo ^{[1
]}

Myung, Seung-Taek ^{[2
]}

Bang, Hyunjoo ^{[1
]}

Amine, Khaili ^{[3
]}

Kim, Dong-Won ^{[1
]}

Sun, Yang-Kook ^{[1
]}

机构：

[1] Hanyang Univ, Ctr Informat & Commun Mat, Dept Chem Engn, Seoul 133791, South Korea

[2] Iwate Univ, Dept Chem Engn, Morioka, Iwate 0208551, Japan

[3] Argonne Natl Lab, Div Chem Engn, Electrochem Technol Program, Argonne, IL 60493 USA

来源：

JOURNAL OF POWER SOURCES | 2009年 / 189卷 / 01期

关键词：

Co3O4; Spinel; Li1.1Mn1.9O4; Cathode; Lithium; Battery; ION SECONDARY BATTERIES; SURFACE MODIFICATION; 4.5; V; IMPROVEMENT; NI; PERFORMANCE; DISSOLUTION; GRAPHITE; CELL; CR;

D O I：

10.1016/j.jpowsour.2008.11.062

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：

Metal oxide (Co3O4) Was coated on spinel Li1.1Mn1.9O4 using glutamic acid. Powder X-ray diffraction pattern Of Co3O4-coated spinel Li1.1Mn1.9O4 Showed that the Co3O4 coating medium was not incorporated in the spinel bulk structure. Morphology of the Co3O4-coated spinel Li1.1Mn1.9O4 was observed by scanning electron microscopy and transmission electron microscopy. The cycling performance of the Co3O4-coated spinel Li1.1Mn1.9O4 was obviously improved, compared to the pristine Li1.1Mn1.9O4 at elevated temperature (55 degrees C). Improvement of rate capability was also achieved at high C-rates. (c) 2008 Published by Elsevier B.V.

引用

页码：494 / 498

页数：5

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