Electrochemical properties of manganese vanadium molybdenum oxide as the anode for Li secondary batteries

被引：36

作者：

Hara, D ^{[1
]}

Ikuta, H ^{[1
]}

Uchimoto, Y ^{[1
]}

Wakihara, M ^{[1
]}

机构：

[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2002年 / 12卷 / 08期

关键词：

D O I：

10.1039/b201966c

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：

Solid solutions of Mn1-xMo2xV2(1-x)O6 (x=0, 0.4) were synthesized by classical solid-state reaction from Mn2O3, V2O5, and MoO3 as starting materials. X-Ray diffraction (XRD) analysis showed that the prepared samples belong to the monoclinic brannerite-type structure with space group C2/m. L-Edge X-ray absorption near-edge structure (XANES) data of Mn, V and Mo in Mn1-xMo2xV2(1-x)O6 (x=0, 0.4) revealed that the valences of the corresponding metals are almost +2, +5 and +6, respectively. The electrochemical properties were considerably affected by Mo doping. The brannerite Mn0.6Mo0.8V1.2O6, which is an intermediate composition of Mn1-xMo2xV2(1-x)O6, exhibited a higher charge-discharge capacity of 1000 Ah kg(-1) and enhanced rate capabilities compared with the parent MnV2O6.

引用

页码：2507 / 2512

页数：6

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