Hydrothermal preparation of Co3O4/graphene composite as anode material for lithium-ion batteries

被引：34

作者：

Chi, Xiannian ^{[1
]}

Chang, Ling ^{[2
]}

Xie, Dong ^{[2
]}

Zhang, Jun ^{[2
]}

Du, Gaohui ^{[2
]}

机构：

[1] Zhejiang Normal Univ, Coll Math Phys & Informat Engn, Jinhua 321004, Peoples R China

[2] Zhejiang Normal Univ, Inst Phys Chem, Jinhua 321004, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 106卷

关键词：

Cobalt oxide; Composite materials; Crystal growth; Lithium-ion battery; Microstructure; IMPROVED REVERSIBLE CAPACITY; FACILE SYNTHESIS; ELECTROCHEMICAL PROPERTIES; PERFORMANCE; NANOCOMPOSITES; MICROSPHERES; NANOSHEETS; STABILITY;

D O I：

10.1016/j.matlet.2013.05.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a facile hydrothermal strategy to synthesize the Co3O4/graphene composite as anode material for high-performance lithium-ion batteries. The polyhedral Co3O4 particles are homogeneously anchored on graphene sheets, and the growth mechanism has been discussed. The obtained Co3O4/graphene composite displays large reversible capacity (similar to 840 mAh/g after 50 cycles), excellent cyclic stability, and good rate capability in comparison to pure CO3O4 nanoparticles. The flexible structure of graphene sheets and the strong interaction between graphene and Co3O4 particles are beneficial for providing excellent electronic conductivity, short transportation length for Li+ ions, and elastomeric space to accommodate volume varies upon Li+ insertion/extraction. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：178 / 181

页数：4

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