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author:

Dang, F. (Dang, F..) [1] | Zhao, W. (Zhao, W..) [2] | Tong, W. (Tong, W..) [3] | Yang, P. (Yang, P..) [4] | Wang, D. (Wang, D..) [5] | Liu, Y. (Liu, Y..) [6]

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Scopus

Abstract:

The stretchable supercapacitors based on predesigned structures show low specific areal capacitance and lack programmable stretchability. To overcome the limitations, developing a programmable supercapacitor with customizable stretchability and ultrahigh areal capacitance is extremely desirable. In this study, we develop programmable supercapacitors with desirable stretchability and ultrahigh specific capacitance using interconnected polypyrrole/graphene (PPy/RGO) electrodes. Thanks to the easy accessibility of ions and high ability of ion transfer, the optimized PPy/RGO-1800 electrode achieves a specific capacitance of 1545.6 mF·cm−2, and the assembled flexible supercapacitor presents an ultrahigh stack capacitance of 45.1 F·cm−3. The stretchable supercapacitor edited by kirigami delivers a specific capacitance of 489.1 mF·cm−2 at 400% strain and keeps stable capacitive performance under various deformations (bending, stretching and torsion), which is superior to most of the reported stretchable supercapacitors. Additionally, it can keep more than 92% of initial capacitance after 1000 cycles of various large deformations. The enhanced areal capacitance and easy programmability make the stretchable supercapacitor highly promising for wearable electronics. © 2023

Keyword:

Flexible electrode Polypyrrole/graphene Programmable supercapacitor Specific areal capacitance

Community:

  • [ 1 ] [Dang F.]College of Physics and Electronic Information Engineering, Minjiang University, Fuzhou, 350108, China
  • [ 2 ] [Zhao W.]School of Chemical Engineering, Northwest University, Xi'an, 710069, China
  • [ 3 ] [Tong W.]Laboratory for Multiscale Mechanics and Medical Science, SVLAB, School of Aerospace, Xi'an Jiaotong University, Xi'an, 710049, China
  • [ 4 ] [Yang P.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Wang D.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Liu Y.]Laboratory for Multiscale Mechanics and Medical Science, SVLAB, School of Aerospace, Xi'an Jiaotong University, Xi'an, 710049, China

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Source :

Electrochimica Acta

ISSN: 0013-4686

Year: 2023

Volume: 463

5 . 5

JCR@2023

5 . 5 0 0

JCR@2023

ESI HC Threshold:39

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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