Synthesis and characterization of ultrafine LiCoO2 powders by a spray-drying method

被引：75

作者：

Li, YX ^{[1
]}

Wan, CR ^{[1
]}

Wu, YP ^{[1
]}

Jiang, CY ^{[1
]}

Zhu, YJ ^{[1
]}

机构：

[1] Tsing Hua Univ, Inst Nucl Energy Technol, Beijing 102201, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2000年 / 85卷 / 02期

关键词：

LiCoO2; lithium-ion battery; spray-drying method;

D O I：

10.1016/S0378-7753(99)00159-7

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：

A spray-drying method has been developed to synthesize a molecularly mixed precursor from which ultrafine LiCoO2 powder is prepared by sintering in a short time. Measurements of DTA/TGA, IR, XRD, SEM and reversible capacity are performed to characterize the properties of the prepared materials. The obtained powder is HT-LiCaO2 with an alpha-NaFeO2 structure. It is homogeneous with a grain size in the order of hundreds of nanometers. The electrochemical properties are good, viz., an initial charge capacity of 148 mA h g(-1), a discharge capacity of 135 mA h g(-1), and satisfactory cycle-life. The commercial prospects of this novel technique are promising. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：294 / 298

页数：5

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