Choice for graphene as conductive additive for cathode of lithium-ion batteries

doi:10.1016/j.jechem.2018.03.009

CORC > 金属研究所 > 中国科学院金属研究所

	Choice for graphene as conductive additive for cathode of lithium-ion batteries
	Shi, Ying; Wen, Lei; Pei, Songfeng; Wu, Minjie; Li, Feng
刊名	JOURNAL OF ENERGY CHEMISTRY
	2019-03-01
卷号	30 页码:19-26
关键词	Graphene Conductive additive Lithium-ion batteries LiCoO2 cathode
ISSN号	2095-4956
DOI	10.1016/j.jechem.2018.03.009
通讯作者	Li, Feng(fli@imr.ac.cn)
英文摘要	Graphene is a promising conductive additive for the lithium-ion batteries (LIBs) and shows great potential especially with its fast development of the large scale fabrication technology. This work has explored the influence of the incorporation of graphenes prepared by three typical methods on the electrochemical performance of the LiCoO2-based cathode focusing on the choice for the effective graphene as conductive additive for the cathode of LIBs. Through the comparison of the intrinsic characteristics of graphenes and the electrochemical performance of electrodes with graphene, it is found that graphene with low disorder degree and large size is not suitable for LiCoO2 cathodes as conductive additive. Conversely, the graphene with oxygen functional groups, relatively low surface area and proper size displays much better electrochemical performance when it is used as conductive additive. This work also demonstrates the transmission mechanism for different graphenes as conductive additives in the LiCoO2 materials, and further reveals that the conductivity of graphene is not the only factor as conductive additives, surface chemistry and sheet size of the graphene are also essential factors which greatly influence the electrochemical performance of electrode. In addition, when combined with Super P, only 1% graphene is enough to construct an efficient conductive network in the electrode. This study also gives a new sight on the practical application of graphene as conductive additive for high performance LIBs. (C) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
资助项目	Strategic Priority Reasearch Program of Chinese Academy of Sciences[XDA09010104] ; National Natural Science Foundation of China[51525206] ; National Natural Science Foundation of China[51521091] ; National Natural Science Foundation of China[51372253] ; National Natural Science Foundation of China[U1401243] ; MOST of China[2016YFB0100100] ; MOST of China[2014CB932402]
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000457878900003
资助机构	Strategic Priority Reasearch Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; MOST of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/131751]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Feng
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Shi, Ying,Wen, Lei,Pei, Songfeng,et al. Choice for graphene as conductive additive for cathode of lithium-ion batteries[J]. JOURNAL OF ENERGY CHEMISTRY,2019,30:19-26.
APA	Shi, Ying,Wen, Lei,Pei, Songfeng,Wu, Minjie,&Li, Feng.(2019).Choice for graphene as conductive additive for cathode of lithium-ion batteries.JOURNAL OF ENERGY CHEMISTRY,30,19-26.
MLA	Shi, Ying,et al."Choice for graphene as conductive additive for cathode of lithium-ion batteries".JOURNAL OF ENERGY CHEMISTRY 30(2019):19-26.