中文版 | English
Title

Highly flexible, mechanically strengthened metallic glass-based composite electrode with enhanced capacitance and cyclic stability

Author
Corresponding AuthorLu, Zhou-Guang; Liu, Chen
Publication Years
2022-08-01
DOI
Source Title
ISSN
1001-0521
EISSN
1867-7185
Abstract

The design of flexible composite electrodes has become the top priority in energy storage devices for the development of future wearable intelligent electronics. However, searching for fully integrated, ultrathin flexible composite electrodes with satisfying electrochemical performance is still a major challenge. Herein, we introduce a nanoporous gold metallic glass (MG) ribbon-based composite electrode with excellent electric conductivity, mechanical flexibility, and extra capacitance by integrating polypyrrole (PPy) into wrinkled nanoporous ribbon (NPG@MG). The "freestanding, ultrathin, highly conductive and flexible" nature of the composite electrode prevents the conducting polymer from structural instability resulting from the volume swell and shrink during the charging/discharging circulation, and the packed PPy provides protection for the wrinkled topology on the surface of the MG ribbon. The capacitance of pure NPG@MG-PPy composite electrode reached 393 mF.cm(-2). The ultra-thin all-solid-state flexible supercapacitor demonstrates an excellent capacitance of 172 mF.cm(-2) (14.8 F.cm(-3)), accompanied by a superior cycling capability after 8000 charge/discharge cycles attributed to mechanical flexibility. The areal energy density also reached 0.74 mWh.cm(-3) (9 mu Wh.cm(-2)) at a power density of 1 mu W.cm(-2). This work provides valuable concepts on the design of PPy-based hybrid materials for flexible energy storage systems with greatly enhanced electrochemical performances.

Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China[
WOS Research Area
Materials Science ; Metallurgy & Metallurgical Engineering
WOS Subject
Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS Accession No
WOS:000841068800005
Publisher
EI Accession Number
20223412609576
EI Keywords
Conducting polymers ; Electrochemical electrodes ; Energy storage ; Glass ; Hybrid materials ; Nanostructures ; Polypyrroles
ESI Classification Code
Energy Storage:525.7 ; Electricity: Basic Concepts and Phenomena:701.1 ; Conducting Materials:708.2 ; Nanotechnology:761 ; Glass:812.3 ; Polymeric Materials:815.1 ; Organic Polymers:815.1.1 ; Solid State Physics:933
ESI Research Field
MATERIALS SCIENCE
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/382566
DepartmentDepartment of Materials Science and Engineering
Affiliation
1.Shenzhen Univ, Coll Mat Sci & Engn, Guangdong Res Ctr Interfacial Engn Funct Mat, Shenzhen 518060, Peoples R China
2.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China
3.City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China
4.Hokkaido Univ, Fac Engn, Ctr Adv Res Energy & Mat, Div Quantum Sci & Engn, Sapporo, Hokkaido 0608628, Japan
5.Southern Univ Sci & Technol, Guangdong Hong Kong Macao Joint Lab Photon Therma, Dept Mat Sci & Engn, Shenzhen 518060, Peoples R China
Corresponding Author AffilicationDepartment of Materials Science and Engineering
Recommended Citation
GB/T 7714
Xu, Yi,Yiu, Pak Man,Wang, Yu-Kun,et al. Highly flexible, mechanically strengthened metallic glass-based composite electrode with enhanced capacitance and cyclic stability[J]. RARE METALS,2022.
APA
Xu, Yi.,Yiu, Pak Man.,Wang, Yu-Kun.,Qin, Xiao-Meng.,Shibayama, Tamaki.,...&Liu, Chen.(2022).Highly flexible, mechanically strengthened metallic glass-based composite electrode with enhanced capacitance and cyclic stability.RARE METALS.
MLA
Xu, Yi,et al."Highly flexible, mechanically strengthened metallic glass-based composite electrode with enhanced capacitance and cyclic stability".RARE METALS (2022).
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