Characterization of LiNi0.85Co0.10M0.05O2 (M = Al, Fe) as a cathode material for lithium secondary batteries

被引：88

作者：

Lee, KK

Yoon, WS

Kim, KB

Lee, KY

Hong, ST

机构：

[1] Yonsei Univ, Div Engn & Mat Sci, Seodaemun Gu, Seoul 120749, South Korea

[2] LG Chem Ltd, Battery Res Inst, Taejon 305380, South Korea

来源：

JOURNAL OF POWER SOURCES | 2001年 / 97-8卷

关键词：

four-cation oxides; structural and electrochemical characteristics; thermal behavior;

D O I：

10.1016/S0378-7753(01)00516-X

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：

The structural and electrochemical characteristics and the thermal behavior of four-cation oxides, LiNi0.85Co0.10M0.05O2 (M = Al, Fe) were examined by X-ray and neutron diffraction measurements, charge/discharge cycling and thermal analysis. LiNi0.85Co0.10Al0.05O2 showed enhanced electrochemical properties, i.e. a small polarization and a large reversible capacity during the charge/discharge cycling compared with LiNiO2 and it is due to the structural stabilization of the nickelate in the wide range of x by Co and Al substitution. The substitution of Co, Al and Fe also had a beneficial effect on the thermal stability of LiNiO2. (C) 2001 Elsevier Science B.V. All rights reserved.

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页码：308 / 312

页数：5

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