Lithium storage capability of CuGeO3 nanorods

被引：27

作者：

Feng, JinKui ^{[1
]}

Lai, Man On ^{[1
]}

Lu, Li ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Mat Sci Grp, Singapore 17576, Singapore

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 07期

关键词：

Nanostructures; Chemical synthesis; X-ray diffraction; Electron microscopy; Electrochemical properties; ANODE MATERIAL; ION; LI; CAPACITY; BEHAVIOR;

D O I：

10.1016/j.materresbull.2012.03.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Copper metagermanate (CuGeO3) nanorods were synthesized through a low temperature hydrothermal method at 180 degrees C. The as-synthesized CuGeO3 nanorods show a well crystallined nanostructure with diameters in the range from 40 to 70 nm, and a length from 250 to 350 nm. Electrochemical measurements demonstrate that the CuGeO3 nanorods exhibit a first charge capacity of 924 mAh g(-1) and 690 mAh g(-1) after 50 cycles, which is remarkably improved than the pure nanosize GeO2 electrode. This investigation indicates that CuGeO3 nanorods could be utilized as a high capacity anode material in lithium-ion batteries by reducing particle size and metal oxide addition. The lithium storage mechanisms for the improved capacity retention were also studied. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1693 / 1696

页数：4

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