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Boosting the energy density of a flexible TiNb2O7@CNF-based lithium-ion supercapacitor with an ionogel separator
Li, Jiajia1; Pan, Shanshan1,2; Xing, Chunxian1; Guo, Liquan3; Zhou, Ziyou4; Zhang, Haitao1,2
2020-08-04
Source PublicationIONICS
ISSN0947-7047
Pages9
AbstractThe growing demand for portable and flexible electronics, such as roll-up displays, electronic papers, and wearable sensing devices, has stimulated the development of flexible energy storage devices. Herein, we demonstrate the fabrication of a high-voltage solid-state flexible free-standing supercapacitor with an ionogel separator. The negative electrode, titanium niobate, was hydrothermally grown onto a carbon cloth to ensure intimate contact. And the ionogel separator is based on EMIMBF4/P(VDF-HFP)/LiTFSI to ensure safety and high voltage. Our study shows that this device could exhibit reasonable area specific capacitance, relatively wide working potential (0-4 V), and outstanding high-temperature performances. And with that, it could deliver a super-high energy density of 397.3 mu Wh cm(-2), and almost no decay was observed after 1000 cycles. This strategy, combining high area specific capacitance electrodes (0.26 mAh cm(-2)) and ionogel separators, will pave a new road for the development of solid-state flexible lithium-ion supercapacitors with a high energy density.
KeywordTiNb2O7 Lithium-ion supercapacitor Ionogel separator Flexible supercapacitor
DOI10.1007/s11581-020-03717-z
Language英语
WOS KeywordCARBON NANOTUBES ; GRAPHENE OXIDE ; PERFORMANCE ; TINB2O7 ; ANODE ; ELECTRODES ; INSERTION ; STORAGE ; NANOSTRUCTURE ; NANOSHEETS
Funding ProjectNational Key Research and Development Program of China[2019YFA0705601] ; Major Program of National Natural Science Foundation of China[21890762] ; National Natural Science Foundation of China[21878308]
WOS Research AreaChemistry ; Electrochemistry ; Physics
WOS SubjectChemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
Funding OrganizationNational Key Research and Development Program of China ; Major Program of National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS IDWOS:000555770000001
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41614
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Haitao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jilin Agr Univ, Coll Life Sci, Key Lab Straw Biol & Higher Value Applicat, Minist Educ, Changchun, Peoples R China
4.Renmin Univ China, High Sch, Branch Sch, Beijing 100086, Peoples R China
Recommended Citation
GB/T 7714
Li, Jiajia,Pan, Shanshan,Xing, Chunxian,et al. Boosting the energy density of a flexible TiNb2O7@CNF-based lithium-ion supercapacitor with an ionogel separator[J]. IONICS,2020:9.
APA Li, Jiajia,Pan, Shanshan,Xing, Chunxian,Guo, Liquan,Zhou, Ziyou,&Zhang, Haitao.(2020).Boosting the energy density of a flexible TiNb2O7@CNF-based lithium-ion supercapacitor with an ionogel separator.IONICS,9.
MLA Li, Jiajia,et al."Boosting the energy density of a flexible TiNb2O7@CNF-based lithium-ion supercapacitor with an ionogel separator".IONICS (2020):9.
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