Electrochemical and structural properties of HT-LiCoO2 and LT-LiCoO2 prepared by the citrate sol-gel method

被引：95

作者：

Kang, SG ^{[1
]}

Kang, SY ^{[1
]}

Ryu, KS ^{[1
]}

Chang, SH ^{[1
]}

机构：

[1] Elect & Telecommun Res Inst, Microelect Technol Lab, Taejon 305600, South Korea

来源：

SOLID STATE IONICS | 1999年 / 120卷 / 1-4期

关键词：

cathode materials; EXAFS; LiCoO2; lithium secondary battery; LT-LiCoO2;

D O I：

10.1016/S0167-2738(98)00559-1

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：

LT-LiCoO2 has a slightly modified structure but significantly different electrochemical properties compared to LiCoO2 prepared at high temperature. In this study, the structure and electrochemical properties of LT-LiCoO2 have been evaluated using Raman spectroscopy, X-ray absorption spectroscopy (XANES and EXAFS), and electrochemical. methods. According to the structural analysis, LT-LiCoO2 has an intermediate structure between a layered and a spinel structure. The first discharge capacity of LT-LiCoO2 is similar to 80 mAh/g (100 mu A/cm(2)). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：155 / 161

页数：7

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