Hierarchical Co3O4@C hollow microspheres with high capacity as an anode material for lithium-ion batteries

被引：14

作者：

Xu, Ziqin ^{[1
,2
]}

Zhao, Kuangmin ^{[1
,2
]}

Gan, Qingmeng ^{[1
,2
]}

Liu, Suqin ^{[1
,3
,4
]}

He, Zhen ^{[1
,3
,4
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

[2] Cent S Univ, Innovat Base Energy & Chem Mat Grad Students Trai, Changsha 410083, Hunan, Peoples R China

[3] Cent S Univ, Hunan Prov Key Lab Chem Power Sources, Changsha 410083, Hunan, Peoples R China

[4] Cent S Univ, Hunan Prov Key Lab Efficient & Clean Utilizat Man, Changsha 410083, Hunan, Peoples R China

来源：

IONICS | 2018年 / 24卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Co3O4; Anode material; Lithium-ion battery; Metal oxide; C composite; Hierarchical; ELECTROCHEMICAL ENERGY-STORAGE; METAL-ORGANIC FRAMEWORKS; TEMPLATE-FREE SYNTHESIS; CARBON NANOTUBES; NATURAL GRAPHITE; PERFORMANCE; NANOPARTICLES; SPHERES; ROUTE; NANOSHEETS;

D O I：

10.1007/s11581-018-2554-y

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：

Three-dimensional hierarchical Co3O4@C hollow microspheres (Co3O4@C HSs) are successfully fabricated by a facile and scalable method. The Co3O4@C HSs are composed of numerous Co3O4 nanoparticles uniformly coated by a thin layer of carbon. Due to its stable 3D hierarchical hollow structure and uniform carbon coating, the Co3O4@C HSs exhibit excellent electrochemical performance as an anode material for lithium-ion batteries (LIBs). The Co3O4@C HSs electrode delivers a high reversible specific capacity, excellent cycling stability (1672mAhg(-1) after 100cycles at 0.2Ag(-1) and 842.7mAhg(-1) after 600cycles at 1Ag(-1)), and prominent rate performance (580.9mAhg(-1) at 5Ag(-1)). The excellent electrochemical performance makes this 3D hierarchical Co3O4@C HS a potential candidate for the anode materials of the next-generation LIBs. In addition, this simple synthetic strategy should also be applicable for synthesizing other 3D hierarchical metal oxide/C composites for energy storage and conversion.

引用

页码：3757 / 3769

页数：13

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