Low-temperature growth of well-crystalline Co3O4 hexagonal nanodisks as anode material for lithium-ion batteries

被引：29

作者：

Hwang, S. W. ^{[1
,2
]}

Umar, Ahmad ^{[1
,2
]}

Kim, S. H. ^{[1
,2
]}

Al-Sayari, S. A. ^{[1
,2
]}

Abaker, M. ^{[1
,2
]}

Al-Hajry, A. ^{[1
,2
]}

Stephan, A. Manuel ^{[3
]}

机构：

[1] Najran Univ, CRCSED, Najran 11001, Saudi Arabia

[2] Najran Univ, CAMNE, Najran 11001, Saudi Arabia

[3] Cent Electrochem Res Inst, Electrochem Power Syst Div, Karaikkudi 630006, Tamil Nadu, India

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 24期

关键词：

CO3O4 hexagonal nanodisks; Anode material; Li-ion batteries; ELECTRODE MATERIALS; NANOMATERIALS; REDUCTION;

D O I：

10.1016/j.electacta.2011.07.033

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Uniform hexagonal-shaped cobalt oxide (Co3O4) nanodisks were prepared in large scale via facile aqueous solution based hydrothermal process at 110 degrees C. The detailed structural characterizations confirmed that the synthesized products are hexagonal cobalt oxide nanodisks, possessing very well-crystalline cubic spinel structure. A coin cell of type -2032 was assembled using the synthesized Co3O4 nanodisks and its charge-discharge profile was analyzed between the voltages 0.01 and to 2.5 V vs. Li/Li+ reference electrode. The electrochemical cell composed of Li/Co3O4 delivered an initial lithium insertion capacity of 2039 mAh/g. Although the cell exhibited high irreversible capacity during the first four cycles, the columbic efficiency has been improved upon cycling. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：8534 / 8538

页数：5

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