The characteristics of Ni-Co-Mn-O precursor and Li(Ni1/3Co1/3Mn1/3)O2 cathode powders prepared by spray pyrolysis

被引：22
作者：
Ju, Seo Hee [1 ]
Kang, Yun Chan [1 ]
机构：
[1] Konkuk Univ, Dept Chem Engn, Seoul 143701, South Korea
来源：
CERAMICS INTERNATIONAL | 2009年 / 35卷 / 03期
关键词：
Powders: gas-phase reaction; Batteries; ELECTROCHEMICAL PROPERTIES; AL; LINI1/3CO1/3MN1/3O2; PERFORMANCE; MORPHOLOGY;
D O I：
10.1016/j.ceramint.2008.06.007
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Ni-Co-Mn-O precursor powders with spherical shape and dense structure were prepared by spray pyrolysis from a spray solution containing a drying control chemical additive (DCCA) and polymeric precursors. In contrast, the Ni-Co-Mn-O precursor powders obtained from a spray solution without additives had a hollow and porous morphology. Ni-Co-Mn-O precursor powders with a spherical shape and dense structure yielded Li(Ni1/3Co1/3Mn1/3)O-2 cathode powders with a spherical shape and fine size by means of a solid-state reaction with lithium hydroxide. The mean size of the spherical cathode powder was 1.1 mu m. The discharge capacity of the Li(Ni1/3Co1/3Mn1/3)O-2 powders with spherical shape and filled morphology was 195 mA h g(-1) at a current density of 0.1 C. The discharge capacities of the cathode powders with spherical shape and filled morphology at 55 degrees C decreased from 183 to 154 mA h g(-1) by the 30th cycle at a current density of 0.5 C. (C) 2008 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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收藏
页码：1205 / 1210
页数：6
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