β-FeOOH, a new positive electrode material for lithium secondary batteries

被引：92

作者：

Amine, K

Yasuda, H

Yamachi, M

机构：

[1] Argonne Natl Lab, Div Chem Technol, Electrochem Technol Program, Argonne, IL 60439 USA

[2] Japan Storage Battery, Kyoto 601, Japan

来源：

JOURNAL OF POWER SOURCES | 1999年 / 81卷

关键词：

iron oxy-hydroxide; tunnel structure; lithium battery; XPS;

D O I：

10.1016/S0378-7753(99)00138-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 [物理化学]; 081704 [应用化学];

摘要：

Beta-iron oxy-hydroxide, which exhibits a (2 X 2) tunnel-type structure similar to that of alpha-MnO2, was found to intercalate reversibly lithium in the tunnels. This material exhibits a potential slightly higher than 2 V with a capacity of 275 mAh/g and very good cyclic reversibility. X-ray Photoelectron Spectroscopy (XPS) investigation of discharged material showed that iron is reduced to the divalent state, and the lithium incorporated in the tunnels was purely ionic. This explains the good reversibility of this electrode material. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：221 / 223

页数：3

共 6 条

[1]

REVERSIBLE ELECTROCHEMICAL INSERTION OF LITHIUM IN FINE-GRAINED POLYCRYSTALLINE THIN-FILMS OF MIXED-VALENCY METAL-OXIDES - APPLICATION TO LIXFE2O3 THIN-FILM ELECTRODES PREPARED BY THE SOL-GEL PROCESS [J].