Structure and charge/discharge characteristics of new-layered oxides:: Li1.8Ru0.6Fe0.6O3 and Li2IrO3

被引：26

作者：

Kobayashi, H

Kanno, R

Tabuchi, M

Kageyama, H

Nakamura, O

Takano, M

机构：

[1] MITI, AIST, Osaka Natl Res Inst, Osaka 563, Japan

[2] Kobe Univ, Fac Sci, Dept Chem, Kobe, Hyogo 657, Japan

[3] Kyoto Univ, Inst Chem Res, Kyoto 611, Japan

来源：

JOURNAL OF POWER SOURCES | 1997年 / 68卷 / 02期

关键词：

lithium de-intercalation; layered oxides; ruthenium oxide; iridium oxide;

D O I：

10.1016/S0378-7753(96)02597-9

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 layered oxides, Li-2(Ru1-yFey)O-3 and Li2IrO3, were synthesized and characterized by X-ray diffractometry, Mossbauer spectroscopy and electrochemical measurements. In the Li-2(Ru1-yFey)O-3 system, symmetry change from a monoclinic to a rhombohedral structure was observed near y = 0.4 with increasing iran content, y, from 0 to 0.5. The rhombohedral monophase obtained al y = 0.5 has the composition of Li1.8Ru0.6Fe0.6O3 with the layered alpha-NaFeO2-type structure. Li2IrO3 has rhombohedral symmetry with the Li2RuO3-related structure, Lithium cells using Li1.8Ru0.6Fe0.6O3 and Li2IrO3 cathodes showed cycling capacities of 100 and 120 mAh/g, respectively. (C) 1997 Published by Elsevier Science S.A.

引用

页码：686 / 691

页数：6

共 16 条

[1] REFINEMENT OF STRICTURE OF LI2TIO3 [J].