Enhanced cycle ability of spinel LiMn2O4 by controlling the phase purity and structural strain

被引：22

作者：

Yao, Jinhan ^{[1
]}

Shen, Chaoqi ^{[1
]}

Zhang, Pinjie ^{[1
]}

Gregory, Duncan H. ^{[2
]}

Wang, Lianbang ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310032, Zhejiang, Peoples R China

[2] Univ Glasgow, WestCHEM, Sch Chem, Glasgow G12 8QQ, Lanark, Scotland

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2012年 / 73卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Li-ion batteries; cathode; LiMn2O4; solid-sate reaction; annealing; strain; ELECTROCHEMICAL PROPERTIES; PERFORMANCE; CATHODE; ION;

D O I：

10.1016/j.jpcs.2012.07.006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

By applying the annealing step during the solid-state synthesis, well-crystallized spinel LiMn2O4 with high phase purity was fabricated. The sensitive effect of heating procedure on the structural and electrochemical properties of LiMn2O4 product was investigated. It was found that preheat-treatment-calcinations-annealing process can effectively eliminate the impurity phase. The post-annealing process also leads to a better crystalline and suitable strain for the LiMn2O4 product, which contributes to the enhanced cycling performance. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1390 / 1395

页数：6

共 22 条

[1] Development of structural stability and the electrochemical performances of 'La' substituted spinel LiMn2O4 cathode materials for rechargeable lithium-ion batteries [J].

Arumugam, D. ;

Kalaignan, G. Paruthimal ;

Manisankar, P. .

SOLID STATE IONICS, 2008, 179 (15-16) :580-586

[2] Electrochemical characterizations of surface modified LiMn2O4 cathode materials for high temperature lithium battery applications [J].

Arumugam, D. ;

Kalaignan, G. Paruthimal .

THIN SOLID FILMS, 2011, 520 (01) :338-343

[3] Observation of phase transformations in LiMn2O4 under high pressure and at high temperature by in situ X-ray diffraction measurements [J].

Darul, J. ;

Nowicki, W. ;

Lathe, C. ;

Piszora, P. .

RADIATION PHYSICS AND CHEMISTRY, 2011, 80 (10) :1014-1018

[4] Comparison and improvement of the high rate performance of different types of LiMn2O4 spinels [J].

Deng, BH ;

Nakamura, H ;

Yoshio, M .

JOURNAL OF POWER SOURCES, 2005, 141 (01) :116-121

[5] Positive Electrode Materials for Li-Ion and Li-Batteries [J].

Ellis, Brian L. ;

Lee, Kyu Tae ;

Nazar, Linda F. .

CHEMISTRY OF MATERIALS, 2010, 22 (03) :691-714

[6] Challenges for Rechargeable Li Batteries [J].

Goodenough, John B. ;

Kim, Youngsik .

CHEMISTRY OF MATERIALS, 2010, 22 (03) :587-603

[7] Synthesis of LiCoMnO4 via a sol-gel method and its application in high power LiCoMnO4/Li4Ti5O12 lithium-ion batteries [J].

Huang, Xingkang ;

Lin, Min ;

Tong, Qingsong ;

Li, Xiuhua ;

Ruan, Ying ;

Yang, Yong .

JOURNAL OF POWER SOURCES, 2012, 202 :352-356

[8] Electrochemical performance of Al-doped LiMn2O4 prepared by different methods in solid-state reaction [J].

Kakuda, Teruaki ;

Uematsu, Kazuyoshi ;

Toda, Kenji ;

Sato, Mineo .

JOURNAL OF POWER SOURCES, 2007, 167 (02) :499-503

[9] Hydrothermal synthesis and electrochemical properties of Li-Mn-spinel [J].

Kanasaku, T ;

Amezawa, K ;

Yamamoto, N .

SOLID STATE IONICS, 2000, 133 (1-2) :51-56

[10] Preparation and electrochemical performance of composite oxide of alpha manganese dioxide and Li-Mn-O spinel [J].

Komaba, S ;

Sasaki, T ;

Kumagai, N .

ELECTROCHIMICA ACTA, 2005, 50 (11) :2297-2305

← 1 2 3 →