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An ultrafast supercapacitor built by Co3O4 with tertiary hierarchical architecture
Chen, JL; Xu, ZF; Zhu, HL; Liu, R; Song, XJ; Song, Q; Wu, J; Zhang, CZ; Ding, L; Dong, JL; Cui, HZ
2020-04-01
Source PublicationVACUUM
ISSN0042-207X
SubtypeArticle
AbstractThe fast charge/discharge ability is very important for electric energy storage devices. Here, Co3O4 electrode with flower-wire-nanoparticle tertiary hierarchical architecture for ultrafast charge/discharge rate supercapacitor is developed via a facile and scalable hydrothermal method and subsequent sintering treatment. The as-prepared Co3O4 electrode exhibits an outstanding rate performance of 95.6% capability at 80 times current density from 0.5 A g(-1) to 40 A g(-1) and a good cycling stability of 98.5% retention after 2000 charge/discharge cycles at the current density of 2 A g(-1). The Co3O4//AC asymmetric supercapacitor reveals an energy density of 16.25 Wh kg(-1) at a power density of 7500 W kg(-1). These impressive electrochemical behaviors suggest that such Co3O4 tertiary hierarchical architecture holds great promise for high-rate energy storage devices.
DOI10.1016/j.vacuum.2020.109219
WOS KeywordQUANTUM DOTS ; PERFORMANCE ; NANOSHEETS ; CARBON ; NANOARCHITECTURES ; ELECTRODES ; FILM
Language英语
WOS Research AreaMaterials Science ; Physics
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28182
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Chen, JL,Xu, ZF,Zhu, HL,et al. An ultrafast supercapacitor built by Co3O4 with tertiary hierarchical architecture[J]. VACUUM,2020.
APA Chen, JL.,Xu, ZF.,Zhu, HL.,Liu, R.,Song, XJ.,...&Cui, HZ.(2020).An ultrafast supercapacitor built by Co3O4 with tertiary hierarchical architecture.VACUUM.
MLA Chen, JL,et al."An ultrafast supercapacitor built by Co3O4 with tertiary hierarchical architecture".VACUUM (2020).
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