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Choice for graphene as conductive additive for cathode of lithium-ion batteries
Shi, Ying; Wen, Lei; Pei, Songfeng; Wu, Minjie; Li, Feng
2019-03-01
Source PublicationJOURNAL OF ENERGY CHEMISTRY
ISSN2095-4956
Volume30Pages:19-26
AbstractGraphene 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.
KeywordGraphene Conductive additive Lithium-ion batteries LiCoO2 cathode
Indexed BySCI
Language英语
WOS IDWOS:000457878900003
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81331
Collection中国科学院金属研究所
Recommended Citation
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.
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