Ionic liquid assisted fabrication of cellulose-based conductive films for Li-ion battery

doi:10.1002/app.49430

	Ionic liquid assisted fabrication of cellulose-based conductive films for Li-ion battery
	Zhou, Le 1,3,4; Pan, Fengjiao 1,3,4; Zeng, Shaojuan 1,3; Li, Qiongguang 1,3; Bai, Lu 3; Liu, Yanrong 2; Nie, Yi 1,3,4
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2020-05-28
页码	12
关键词	anode materials carbon nano materials cellulose conductive films Ionic liquids
ISSN号	0021-8995
DOI	10.1002/app.49430
英文摘要	An imidazolium-based ionic liquid, 1-ethyl-3-methylimidazolium diethyl phosphate ([Emim]DEP) was used to dispense graphene nanoplates (GN) and multiwalled carbon nanotubes (MWCNTs) as well as dissolve cellulose for fabricating composite conductive films. The effects of GN, MWCNTs, and cellulose mass ratios on the electrical conductivity and morphology of the films were investigated. The interaction between GN, MWCNTs, and cellulose was analyzed by SEM, X-ray diffraction (XRD), TGA, and Raman spectroscopy. The results indicate that [Emim]DEP plays a vital and irreplaceable role in GN and MWCNTs dispersion, cellulose dissolution, and porous formation during the regeneration and drying processes. MWCNTs linked flaky GN and a hybrid structure was constructed elaborately to form a better conductive path and improve the conductivity as well as increase the film stability. For the XRD result, the carbonized GN-MWCNTs-cellulose films exhibited the graphitic peaks, showing that the films still retained the structure of carbon atoms or molecules. Besides, the maximum conductivity of carbonized GN-MWCNTs-cellulose (7:3:2) composite film was up to 9,009 S m(-1), due to the small carbon clusters formation and the high degree of graphitization. Further, the carbonized films were applied as anodes in Li-ion battery and showed good electrochemical performance. The best cyclic stability (i.e., discharge/charge capacity) of 438/429 mA h g(-1) and coulomb efficiency of 50.2% were obtained. This novel and sustainable design is a promising approach to obtain cellulose-based conductive films and anodes for Li-ion battery applications.
资助项目	Kempestiftelserna ; Carl Tryggers Stiftelse ; National Natural Science Foundation of China (CN)[21978306] ; National Natural Science Foundation of China[21776276] ; Zhengzhou High Level Talent[20180300045]
WOS关键词	NANOTUBE COMPOSITE MEMBRANES ; REDUCED GRAPHENE OXIDE ; CARBON NANOTUBES ; MECHANICAL-PROPERTIES ; DISSOLVING CELLULOSE ; DISSOLUTION ; GRAPHITE ; GREEN ; PAPER ; NANOCOMPOSITE
WOS研究方向	Polymer Science
语种	英语
出版者	WILEY
WOS记录号	WOS:000535951200001
资助机构	Kempestiftelserna ; Carl Tryggers Stiftelse ; National Natural Science Foundation of China (CN) ; National Natural Science Foundation of China ; Zhengzhou High Level Talent
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/40884]
专题	中国科学院过程工程研究所
通讯作者	Liu, Yanrong; Nie, Yi
作者单位	1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing, Peoples R China 2.Lulea Univ Technol, Div Energy Sci, Energy Engn, S-97187 Lulea, Sweden 3.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst,CAS Key Lab, Beijing, Peoples R China 4.Zhengzhou Inst Emerging Ind Technol, Zhengzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Le,Pan, Fengjiao,Zeng, Shaojuan,et al. Ionic liquid assisted fabrication of cellulose-based conductive films for Li-ion battery[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2020:12.
APA	Zhou, Le.,Pan, Fengjiao.,Zeng, Shaojuan.,Li, Qiongguang.,Bai, Lu.,...&Nie, Yi.(2020).Ionic liquid assisted fabrication of cellulose-based conductive films for Li-ion battery.JOURNAL OF APPLIED POLYMER SCIENCE,12.
MLA	Zhou, Le,et al."Ionic liquid assisted fabrication of cellulose-based conductive films for Li-ion battery".JOURNAL OF APPLIED POLYMER SCIENCE (2020):12.