Properties of LiNi1/3Co1/3Mn1/3O2 cathode material synthesized by a modified Pechini method for high-power lithium-ion batteries

被引：70

作者：

Xia, Hui ^{[1
]}

Wang, Hailong ^{[1
]}

Xiao, Wei ^{[1
]}

Lu, Li ^{[1
]}

Lai, M. O. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 480卷 / 02期

关键词：

Lithium-ion batteries; Layered compounds; LiNi1/3Co1/3Mn1/3O2; Pechini method; Cathode; ELECTROCHEMICAL-BEHAVIOR; HIGH-VOLTAGE; CAPACITY; TEMPERATURE; ELECTRODES; MORPHOLOGY;

D O I：

10.1016/j.jallcom.2009.02.023

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：

Layered nano-structured LiNi1/3Co1/3Mn1/3O2 cathode materials were synthesized in air by a modified Pechini method. The crystal structure and surface morphology of the samples were investigated by Xray diffraction (XRD) and field emission scanning electron microscopy (FESEM). It was found that Li/Ni disorder and particle size of the samples are highly dependent on the synthesis temperature. Magnetic properties of the samples were investigated by SQUID magnetometry to further study the cation disorder of the material. The electrochemical properties of the LiNi1/3Co1/3Mn1/3O2/Li cells were investigated by charge/discharge measurements at different C rates. Although the samples synthesized at low temperatures are composed of nano-sized particles. the reversible capacity is relatively low due to the high degree of Li/Ni disorder. The cycle performance of the samples improves as the synthesis temperature increases probably due to the decreased surface area and improved structural stability. The rate capability of the samples depends on both particle size and Li/Ni disorder. The sample synthesized at 900 degrees C with relative small particle size and low degree Li/Ni disorder exhibited the best rate capability. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：696 / 701

页数：6

共 29 条

[1] On the capacity fading of LiCoO2 intercalation electrodes:: the effect of cycling, storage, temperature, and surface film forming additives [J].

Aurbach, D ;

Markovsky, B ;

Rodkin, A ;

Levi, E ;

Cohen, YS ;

Kim, HJ ;

Schmidt, M .

ELECTROCHIMICA ACTA, 2002, 47 (27) :4291-4306

[2] Effect of high voltage on the structure and electrochemistry of LiNi0.5Mn0.5O2:: A joint experimental and theoretical study [J].

Breger, Julien ;

Meng, Ying S. ;

Hinuma, Yoyo ;

Kumar, Sundeep ;

Kang, Kisuk ;

Shao-Horn, Yang ;

Ceder, Gerbrand ;

Grey, Clare P. .

CHEMISTRY OF MATERIALS, 2006, 18 (20) :4768-4781

[3] Layered LixNiyMnyCo1-2yO2 cathodes for lithium ion batteries:: Understanding local structure via magnetic properties [J].

Chemova, Natasha A. ;

Ma, Miaorniao ;

Xiao, Jie ;

Whittingham, M. Stanley ;

Breger, Julien ;

Grey, Clare P. .

CHEMISTRY OF MATERIALS, 2007, 19 (19) :4682-4693

[4] Methods to obtain excellent capacity retention in LiCoO2 cycled to 4.5 V [J].

Chen, ZH ;

Dahn, JR .

ELECTROCHIMICA ACTA, 2004, 49 (07) :1079-1090

[5] Investigation of the irreversible capacity loss in the layered LiNi1/3Mn1/3Co1/3O2 cathodes [J].

Choi, J ;

Manthiram, A .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2005, 8 (08) :C102-C105

[6] The morphology, structure and electrochemical properties of LiNi1/3Mn1/3Co1/3O2 prepared by electrospun method [J].

Ding, Yanhuai ;

Zhang, Ping ;

Long, Zhilin ;

Jiang, Yong ;

Gao, Deshu .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 462 (1-2) :340-342

[7]

GHANY AA, 2007, ELECTROCHIM ACTA, V52, P4092

[8] Electrodes with high power and high capacity for rechargeable lithium batteries [J].

Kang, KS ;

Meng, YS ;

Bréger, J ;

Grey, CP ;

Ceder, G .

SCIENCE, 2006, 311 (5763) :977-980

[9] Changes in the structure and physical properties of Li1-yNi0.5Mn0.4Ti0.1O2 (y=0 and 0.5) [J].

Kobayashi, H ;

Arachi, Y ;

Kageyama, H ;

Sakaebe, H ;

Tatsumi, K ;

Mori, D ;

Kanno, R ;

Kamiyama, T .

SOLID STATE IONICS, 2004, 175 (1-4) :221-224

[10] High-power nanostructured LiMn2-xNixO4 high-voltage lithium-ion battery electrode materials:: Electrochemical impact of electronic conductivity and morphology [J].

Kunduraci, Muharrem ;

Al-Sharab, Jafar F. ;

Amatucci, Glenn G. .

CHEMISTRY OF MATERIALS, 2006, 18 (15) :3585-3592

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