Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries

doi:10.1021/cm101532x

IMR OpenIR

	Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries
	Zhou, Guangmin 1; Wang, Da-Wei 2; Li, Feng 1; Zhang, Lili 1; Li, Na 1; Wu, Zhong-Shuai 1; Wen, Lei 1; Lu, Gao Qing (Max)2; Cheng, Hui-Ming 1
通讯作者	Li, Feng(fli@imr.ac.cn)
	2010-09-28
发表期刊	CHEMISTRY OF MATERIALS
ISSN	0897-4756
卷号	22 期号:18 页码:5306-5313
摘要	A well-organized flexible interleaved composite of graphene nanosheets (GNSs) decorated with Fe3O4 particles was synthesized through in situ reduction of iron hydroxide between GNSs. The GNS/Fe3O4 composite shows a reversible specific capacity approaching 1026 mA h(-1) g(-1) after 30 cycles at 35 mA g(-1) 580 mAh g(-1) after 100 cycles at 700 mA g(-1) as well as improved cyclic stability and excellent rate capability. The multifunctional features of the GNS/Fe3O4 composite are considered as follows: (i) GNSs play a "flexible confinement" function to enwrap Fe3O4 particles, which can compensate for the volume change of Fe3O4 and prevent the detachment and agglomeration of pulverized Fe3O4, thus extending the cycling life of the electrode; (ii) GNSs provide a large contact surface for individual dispersion of well-adhered Fe3O4 particles and act as an excellent conductive agent to provide a highway for electron transport, improving the accessible capacity; (iii) Fe3O4 particles separate GNSs and prevent their restacking thus improving the adsorption and immersion of electrolyte on the surface of electroactive material; and (iv) the porosity formed by lateral GNSs and Fe3O4 particles facilitates ion transportation. As a result, this unique laterally confined GNS/Fe3O4 composite can dramatically improve the cycling stability and the rate capability of Fe3O4 as an anode material for lithium ion batteries.
资助者	National Science Foundation of China ; K.C. Wong Education Foundation, Hong Kong ; Chinese Academy of Sciences
DOI	10.1021/cm101532x
收录类别	SCI
语种	英语
资助项目	National Science Foundation of China[50921004] ; National Science Foundation of China[50632040] ; K.C. Wong Education Foundation, Hong Kong ; Chinese Academy of Sciences[KGCX2-YW-231]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000281891900022
出版者	AMER CHEMICAL SOC
引用统计	被引频次：1653[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/102902
专题	中国科学院金属研究所
通讯作者	Li, Feng
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Queensland, AIBN, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia
推荐引用方式 GB/T 7714	Zhou, Guangmin,Wang, Da-Wei,Li, Feng,et al. Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries[J]. CHEMISTRY OF MATERIALS,2010,22(18):5306-5313.
APA	Zhou, Guangmin.,Wang, Da-Wei.,Li, Feng.,Zhang, Lili.,Li, Na.,...&Cheng, Hui-Ming.(2010).Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries.CHEMISTRY OF MATERIALS,22(18),5306-5313.
MLA	Zhou, Guangmin,et al."Graphene-Wrapped Fe3O4 Anode Material with Improved Reversible Capacity and Cyclic Stability for Lithium Ion Batteries".CHEMISTRY OF MATERIALS 22.18(2010):5306-5313.