Synthesis and electrochemical properties of lithium iron oxides with layer-related structures

被引：114

作者：

Kanno, R ^{[1
]}

Shirane, T ^{[1
]}

Inaba, Y ^{[1
]}

Kawamoto, Y ^{[1
]}

机构：

[1] Kobe Univ, Fac Sci, Dept Chem, Nada Ku, Kobe, Hyogo 657, Japan

来源：

JOURNAL OF POWER SOURCES | 1997年 / 68卷 / 01期

关键词：

lithium batteries; insertion electrodes; iron oxides; layered structure;

D O I：

10.1016/S0378-7753(96)02625-0

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：

Two modifications of layered lithium iron oxides were synthesized and characterized by X-ray diffractometry and electrochemical measurements. LiFeO2 with alpha-NaFeO2 structure was synthesized by the ion-exchange reaction in molten salts; cationic distribution in the host, alpha-NaFeO2, affects the disordering in the reaction product. However, lithium de-intercalation was not confirmed. The ion-exchange reaction in molten salts gave a whole range of solid solution, Li(Fe1-xNix) O-2, using the alpha-Na(Fe1-xNix)O-2 hosts, and their electrochemical properties were determined, Lithium iron oxide, LiFeO2, with a corrugated layer structure, was synthesized by an ion-exchange reaction between gamma-FeOOH and LiOH . H2O. Lithium cells consisting of LiFeO2 cathodes and lithium anodes showed good charge and discharge reversibility in the voltage 1.5-3.0 V range. (C) 1997 Published by Elsevier Science S.A.

引用

页码：145 / 152

页数：8

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