Fine cathode particles prepared by solid-state reaction method using nano-sized precursor particles

被引：5
|
作者：
Ju, Seo Hee [1 ]
Koo, Hye Young [1 ]
Hong, Seung Kwon [1 ]
Jo, Eun Byul [1 ]
Kang, Yun Chan [1 ]
机构：
[1] Konkuk Univ, Dept Chem Engn, Seoul 143701, South Korea
来源：
JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期
关键词：
spray pyrolysis; cathode particle; lithium manganate; lithium cobaltate;
D O I：
10.1016/j.jpowsour.2007.06.243
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：
Fine-sized Li-Co-Mn-O cathode particles with various ratios of cobalt and manganese components were prepared by conventional solid-state reaction method using the nano-sized precursor particles. The nano-sized precursor particles of cobalt and manganese components were prepared by spray pyrolysis. The LiCo1-xMnxO2 (0.1 <= x <= 0.3) particles had finer size than that of the pure LiCoO2, particles. Manganese component disturbed the growth of the LiCo1-xMnxO2 cathode particles prepared by solid-state reaction method. The initial discharge capacities of the layered LiCo1-xMnxO2 (0 <= x <= 0.3) cathode particles decreased from 144 to 136 mAh g(-1) when the ratios of Co/Mn components were changed from 1/0 to 0.7/0.3. The mean sizes of the spinel LiMn2-yCoyO4 (0 <= y <= 0.2) cathode particles decreased from 650 to 460 nm when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2. The initial discharge capacities of the LiMn2-yCoyO4 (0 <= y <= 0.2) cathode particles decreased from 119 to 86 mAh g(-1) when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：598 / 602
页数：5
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