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Electrochemical stability of graphene cathode for high-voltage lithium ion capacitors
Wang, YZ; Shan, XY; Wang, DW; Chen, CM; Li, F; Cheng, HM; Li, F (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.; Wang, DW (reprint author), Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia.
2016-05-01
Source PublicationASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
ISSN1932-2135
Volume11Issue:3Pages:407-414
AbstractThe energy density of electrochemical lithium ion capacitors can be effectively improved through implementing both high capacity cathode and high voltage electrolyte. Graphene is considered as one of the most promising cathodes for lithium ion capacitors because of its high electric conductivity, tunable surface functional groups and controllable pore structure. The development of 5-V organic electrolyte provides an opportunity to expand the stable working potential window of graphene cathodes. In this work, we explored the high-voltage electrochemical behavior of graphene cathodes in a 5-V organic electrolyte (3.0-5.0V vs Li/Li+). The prohibiting effect of small pores (< 5 nm) on electrolyte decomposition during cycling is noticed and correlated with the pore size of graphene powders. The results showed the excellent cycling stability (100% retention after 2000 cycles) of graphene cathodes abundant with pores smaller than 5 nm. This finding indicates a new strategy for practical improvement of graphene-related electrode applications. (C) 2016 Curtin University of Technology and John Wiley & Sons, Ltd.
description.department[wang, yu-zuo] northeastern univ, key lab anisotropy & texture mat, shenyang 110819, peoples r china ; [wang, yu-zuo ; shan, xu-yi ; li, feng ; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [wang, da-wei] univ new south wales, sch chem engn, sydney, nsw 2052, australia ; [chen, cheng-meng] chinese acad sci, inst coal chem, key lab carbon mat, taiyuan 030001, peoples r china
KeywordGraphene High Voltage Electrolyte Stability Pore Size Distribution Lithium Ion Capacitors
Subject AreaEngineering, Chemical
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/76334
Collection中国科学院金属研究所
Corresponding AuthorLi, F (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.; Wang, DW (reprint author), Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia.
Recommended Citation
GB/T 7714
Wang, YZ,Shan, XY,Wang, DW,et al. Electrochemical stability of graphene cathode for high-voltage lithium ion capacitors[J]. ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,2016,11(3):407-414.
APA Wang, YZ.,Shan, XY.,Wang, DW.,Chen, CM.,Li, F.,...&Wang, DW .(2016).Electrochemical stability of graphene cathode for high-voltage lithium ion capacitors.ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,11(3),407-414.
MLA Wang, YZ,et al."Electrochemical stability of graphene cathode for high-voltage lithium ion capacitors".ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING 11.3(2016):407-414.
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