Electrochemical performance of LiNi1/3Co1/3Mn1/3O2 with Al2O3 nano-particle coating

被引：1
作者：
Kim, Hyun-Soo [1 ]
Kim, Young-Sik [2 ]
Kim, Seong-Il [1 ]
Martin, Steve W. [2 ]
机构：
[1] Korea Electrotechnol Res Inst, Battery Res Grp, Chang Won 641120, South Korea
[2] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA
来源：
THERMEC 2006, PTS 1-5 | 2007年 / 539-543卷
关键词：
LiNi1/3Co1/3Mn1/3O2; nano-particles; sol-gel method; electrochemical property; rate capability; cyclic life;
D O I：
10.4028/www.scientific.net/MSF.539-543.1122
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Al2O3 nano-particles were coated on the surface of LiNi1/3Co1/3Mn1/3O2 powder using a sol-gel method. The as-prepared Al2O3 nano-particle was identified to the cubic structure of Al2O3. The average size of the isolated Al2O3 nano-particles after heat treatments was calculated to be similar to 4 nm. The XRD showed that the structure of LiNi1/3Co1/3Mn1/3O2 was not affected by the Al2O3 coating. At 3 wt.% Al2O3 coatings on LiNi1/3Co1/3Mn1/3O2, the cyclic-life performance and rate capability were improved. However, heavier coatings (5 wt.%) on LiNi1/3Co1/3Mn1/3O2 dramatically decreased the discharge capacity and rate capability.
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收藏
页码：1122 / +
页数：2
相关论文
共 10 条
[1]   Mercury(II) ion adsorption behavior in thiol-functionalized mesoporous silica microspheres [J].
Bibby, A ;
Mercier, L .
CHEMISTRY OF MATERIALS, 2002, 14 (04) :1591-1597
[2]   Novel LiCoO2 cathode material with Al2O3 coating for a Li ion cell [J].
Cho, J ;
Kim, YJ ;
Park, B .
CHEMISTRY OF MATERIALS, 2000, 12 (12) :3788-3791
[3]  
Cullity B D, 1978, ELEMENTS XRAY DIFFRA, P100, DOI [10.1119/1.1934486, DOI 10.1119/1.1934486]
[4]   Effect of synthesis method on the electrochemical performance of LiNi1/3Mn1/3Co1/3O2 [J].
Li, DC ;
Muta, T ;
Zhang, LQ ;
Yoshio, M ;
Noguchi, H .
JOURNAL OF POWER SOURCES, 2004, 132 (1-2) :150-155
[5]   The effect of Si doping on the electrochemical characteristics of LiNixMnyCo(1-x-y)O2 [J].
Na, SH ;
Kim, HS ;
Moon, SI .
SOLID STATE IONICS, 2005, 176 (3-4) :313-317
[6]   Effect of Al2O3 coating on electrochemical performance of LiCoO2 as cathode materials for secondary lithium batteries [J].
Oh, S ;
Lee, JK ;
Byun, D ;
Cho, WI ;
Cho, BW .
JOURNAL OF POWER SOURCES, 2004, 132 (1-2) :249-255
[7]   Performance of layered Li(Ni1/3Co1/3Mn1/3)O2 as cathode for Li-ion batteries [J].
Shaju, KM ;
Rao, GVS ;
Chowdari, BVR .
ELECTROCHIMICA ACTA, 2002, 48 (02) :145-151
[8]   Novel lithium insertion material of LiCo1/3Ni1/3Mn1/3O2 for advanced lithium-ion batteries [J].
Yabuuchi, N ;
Ohzuku, T .
JOURNAL OF POWER SOURCES, 2003, 119 :171-174
[9]  
ZHANG S, 2005, IN PRESS J POWER SOU
[10]   Surface modification of Li1.03Mn1.97O4 spinels for improved capacity retention [J].
Zheng, ZH ;
Tang, ZL ;
Zhang, ZT ;
Shen, WC ;
Lin, YH .
SOLID STATE IONICS, 2002, 148 (3-4) :317-321
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