Lithiation mechanism of new electrode material for lithium ion cells -: the α-Fe2O3-SnO2 binary system

被引：28

作者：

Matsumura, T

Sonoyama, N

Kanno, R

Takano, M

机构：

[1] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Engn, Dept Elect Chem, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[2] Kyoto Univ, Inst Chem Res, Uji, Kyoto 611, Japan

来源：

SOLID STATE IONICS | 2003年 / 158卷 / 3-4期

关键词：

iron tin oxide; lithium battery electrode; small particle;

D O I：

10.1016/S0167-2738(02)00913-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：

New electrode material for lithium ion cells using surface and intercalation reactions was found for the alpha-Fe2O3-SnO2 binary system. The solid solution was synthesized by a wet preparation method using a precipitation from alkaline solutions Fe3+ , Sn4+ SO42- containing Fe3+ Sn4+ and SO42- ions. The lithium cells with alpha-(Fe2O3)(0.7)-(SnO2)(0.3) cathode showed the discharge-charge capacity of 300 mA h g(-1). The reaction mechanism was examined by X-ray diffraction (XRD) and the Fe-57 and Sn-119 Mossbauer spectroscopy. Both the intercalation and the surface reactions participate in the charge-discharge process. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：253 / 260

页数：8

共 8 条

[1] CARBON AS NEGATIVE ELECTRODES IN LITHIUM SECONDARY CELLS [J].