High energy flexible supercapacitors formed via bottom-up infilling of gel electrolytes into thick porous electrodes

Xiangming Li, Jinyou Shao (), Sung-Kon Kim, Chaochao Yao, Junjie Wang, Yu-Run Miao, Qiye Zheng, Pengcheng Sun, Runyu Zhang and Paul V. Braun ()
Additional contact information
Xiangming Li: Xi’an Jiaotong University
Jinyou Shao: Xi’an Jiaotong University
Sung-Kon Kim: University of Illinois at Urbana-Champaign
Chaochao Yao: Xi’an Jiaotong University
Junjie Wang: University of Illinois at Urbana-Champaign
Yu-Run Miao: Chonbuk National University
Qiye Zheng: University of Illinois at Urbana-Champaign
Pengcheng Sun: University of Illinois at Urbana-Champaign
Runyu Zhang: University of Illinois at Urbana-Champaign
Paul V. Braun: University of Illinois at Urbana-Champaign

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract Formation of thick, high energy density, flexible solid supercapacitors is challenging because of difficulties infilling gel electrolytes into porous electrodes. Incomplete infilling results in a low capacitance and poor mechanical properties. Here we report a bottom-up infilling method to overcome these challenges. Electrodes up to 500 μm thick, formed from multi-walled carbon nanotubes and a composite of poly(3,4-ethylenedioxythiophene), polystyrene sulfonate and multi-walled carbon nanotubes are successfully infilled with a polyvinyl alcohol/phosphoric acid gel electrolyte. The exceptional mechanical properties of the multi-walled carbon nanotube-based electrode enable it to be rolled into a radius of curvature as small as 0.5 mm without cracking and retain 95% of its initial capacitance after 5000 bending cycles. The areal capacitance of our 500 μm thick poly(3,4-ethylenedioxythiophene), polystyrene sulfonate, multi-walled carbon nanotube-based flexible solid supercapacitor is 2662 mF cm–2 at 2 mV s–1, at least five times greater than current flexible supercapacitors.

Date: 2018
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-018-04937-8 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04937-8

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-018-04937-8

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().