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Simplified fabrication of high areal capacitance all-solid-state micro-supercapacitors based on graphene and MnO2 nanosheets
Qin, Jieqiong1,3; Wu, Zhong-Shuai1; Zhou, Feng1; Dong, Yanfeng1; Xiao, Han1; Zheng, Shuanghao1,2,3; Wang, Sen1,3; Shi, Xiaoyu1,2,4; Huang, Haibo1; Sun, Chenglin1; Bao, Xinhe1,2
KeywordMno2 Nanosheets Graphene All-solid-state Planar Micro-supercapacitors Energy Storage
Source PublicationCHINESE CHEMICAL LETTERS
2018-04-01
ISSN1001-8417
DOI10.1016/j.cclet.2017.08.007
Volume29Issue:4Pages:582-586
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordULTRAHIGH VOLUMETRIC CAPACITANCE ; ELECTROCHEMICAL ENERGY-STORAGE ; ASYMMETRIC SUPERCAPACITOR ; ROOM-TEMPERATURE ; HIGH-PERFORMANCE ; FILMS ; ELECTRODES
AbstractAll-solid-state micro-supercapacitors are acknowledged as a very promising class of microscale energy storage devices for directly integrating portable and wearable electronics. However, the improvement of electrochemical performance from materials to devices still remains tremendous challenges. Here, we demonstrate a novel and universal mask-assisted filtration technology for the simplified fabrication of all-solid-state planar micro-supercapacitors (MSCs) based on interdigital patterns of 2D pseudocapacitive MnO2 nanosheets and electrochemically exfoliated graphene film as both electrode and current collector, and polyvinyl alcohol/LiCl gel as electrolyte. Remarkably, the resulting MSCs exhibit outstanding areal capacitance of similar to 355 mF/cm(2), which is among the highest values reported in the state-of-the-art MSCs. Meanwhile, MSCs possess exceptionally mechanical flexibility as high as similar to 92% of initial capacitance even at a highly bending angle of 180, excellent cyclability with a capacitance retention of 95% after 3000 cycles, and impressive serial or parallel integration for modulating the voltage or capacitance. Therefore, our proposed strategy of simplified construction of MSCs will pave the ways for utilizing graphene and analogous pseudocapactive nanosheets in high-performance MSCs. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000429758900005
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169057
Collection中国科学院大连化学物理研究所
Corresponding AuthorWu, Zhong-Shuai
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Sci & Technol China Hefei, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Qin, Jieqiong,Wu, Zhong-Shuai,Zhou, Feng,et al. Simplified fabrication of high areal capacitance all-solid-state micro-supercapacitors based on graphene and MnO2 nanosheets[J]. CHINESE CHEMICAL LETTERS,2018,29(4):582-586.
APA Qin, Jieqiong.,Wu, Zhong-Shuai.,Zhou, Feng.,Dong, Yanfeng.,Xiao, Han.,...&Bao, Xinhe.(2018).Simplified fabrication of high areal capacitance all-solid-state micro-supercapacitors based on graphene and MnO2 nanosheets.CHINESE CHEMICAL LETTERS,29(4),582-586.
MLA Qin, Jieqiong,et al."Simplified fabrication of high areal capacitance all-solid-state micro-supercapacitors based on graphene and MnO2 nanosheets".CHINESE CHEMICAL LETTERS 29.4(2018):582-586.
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