Synthesis and structural characterization of layered Li[Ni1/3+xCo1/3Mn1/3-2xMox]O2 cathode materials by ultrasonic spray pyrolysis

被引:74
作者
Park, SH [1 ]
Oh, SW [1 ]
Sun, YK [1 ]
机构
[1] Hanyang Univ, Dept Chem Engn, Ctr Informat & Comm Mat, Seoul 133791, South Korea
关键词
lithium-ion battery; cathode materials; molybdenum doping; layered structure; spray pyrolysis;
D O I
10.1016/j.jpowsour.2005.03.078
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
Molybdenum doped layered Li[Ni1/3+xMn1/3Mn1/3-2xMox]O-2 materials were synthesized by an ultrasonic spray pyrolysis method. A single phase of Li[Ni(1/3+x)Co(1/3)Mn(1/3-2x)Mox]O-2 could be prepared in 0 <= x <= 0.05 region. Structural and electrochemical properties of the Li[Ni1/3+xCo1/3Mn1/3-2xMox]O-2 were characterized by X-ray diffraction, Rietveld refinements and galvanostatic charge/discharge tests. The discharge capacity increased with the molybdenum doped, x in 0.01 sample is exhibited a higher discharge capacity of 175 mAh g(-1) with a good capacity retention. (c) 2005 Elsevier B.V. All rights reserved.
引用
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页码:622 / 625
页数:4
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