All solid state flexible supercapacitors operating at 4 v with a cross-linked polymer-ionic liquid electrolyte

Yong Keon Ahn; Bokyung Kim; Jieun Ko; Duck Jea You; Zhenxing Yin; Hyunjin Kim; Dalwoo Shin; Sanghun Cho; Jeeyoung Yoo; Youn Sang Kim

doi:10.1039/c6ta00643d

All solid state flexible supercapacitors operating at 4 v with a cross-linked polymer-ionic liquid electrolyte

Yong Keon Ahn, Bokyung Kim, Jieun Ko, Duck Jea You, Zhenxing Yin, Hyunjin Kim, Dalwoo Shin, Sanghun Cho, Jeeyoung Yoo, Youn Sang Kim

School of Energy Engineering

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

4 V-operated all solid symmetrical supercapacitors that employ mixtures of various weight compositions with cross-linked poly-4-vinylphenol (c-P₄VPh) and 1-ethyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide (EMITFSI) electrolytes have been demonstrated and characterized. The values at 1:3, 3.5, 4 and 4.5 (c-P₄VPh:EMITFSI) offer free-standing membranes with high ionic conductivity. In the case of 1:3.5, the best specific capacitance (172.44 F g^-1 in a single-electrode) and energy density (72.23 W h kg^-1) were obtained at symmetrical cells based on porous carbon electrodes. Every prepared SC was reliable over 1000 cycles in the range of 0-4 V. They also have excellent flexibility and maintain capacitance after completing the bending test a thousand times.

Original language	English
Pages (from-to)	4386-4391
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	4
Issue number	12
DOIs	https://doi.org/10.1039/c6ta00643d
State	Published - 2016

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title = "All solid state flexible supercapacitors operating at 4 v with a cross-linked polymer-ionic liquid electrolyte",

abstract = "4 V-operated all solid symmetrical supercapacitors that employ mixtures of various weight compositions with cross-linked poly-4-vinylphenol (c-P4VPh) and 1-ethyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide (EMITFSI) electrolytes have been demonstrated and characterized. The values at 1:3, 3.5, 4 and 4.5 (c-P4VPh:EMITFSI) offer free-standing membranes with high ionic conductivity. In the case of 1:3.5, the best specific capacitance (172.44 F g-1 in a single-electrode) and energy density (72.23 W h kg-1) were obtained at symmetrical cells based on porous carbon electrodes. Every prepared SC was reliable over 1000 cycles in the range of 0-4 V. They also have excellent flexibility and maintain capacitance after completing the bending test a thousand times.",

author = "Ahn, {Yong Keon} and Bokyung Kim and Jieun Ko and You, {Duck Jea} and Zhenxing Yin and Hyunjin Kim and Dalwoo Shin and Sanghun Cho and Jeeyoung Yoo and Kim, {Youn Sang}",

note = "Publisher Copyright: {\textcopyright} 2016 The Royal Society of Chemistry.",

year = "2016",

doi = "10.1039/c6ta00643d",

language = "English",

volume = "4",

pages = "4386--4391",

journal = "Journal of Materials Chemistry A",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - All solid state flexible supercapacitors operating at 4 v with a cross-linked polymer-ionic liquid electrolyte

AU - Ahn, Yong Keon

AU - Kim, Bokyung

AU - Ko, Jieun

AU - You, Duck Jea

AU - Yin, Zhenxing

AU - Kim, Hyunjin

AU - Shin, Dalwoo

AU - Cho, Sanghun

AU - Yoo, Jeeyoung

AU - Kim, Youn Sang

PY - 2016

Y1 - 2016

N2 - 4 V-operated all solid symmetrical supercapacitors that employ mixtures of various weight compositions with cross-linked poly-4-vinylphenol (c-P4VPh) and 1-ethyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide (EMITFSI) electrolytes have been demonstrated and characterized. The values at 1:3, 3.5, 4 and 4.5 (c-P4VPh:EMITFSI) offer free-standing membranes with high ionic conductivity. In the case of 1:3.5, the best specific capacitance (172.44 F g-1 in a single-electrode) and energy density (72.23 W h kg-1) were obtained at symmetrical cells based on porous carbon electrodes. Every prepared SC was reliable over 1000 cycles in the range of 0-4 V. They also have excellent flexibility and maintain capacitance after completing the bending test a thousand times.

AB - 4 V-operated all solid symmetrical supercapacitors that employ mixtures of various weight compositions with cross-linked poly-4-vinylphenol (c-P4VPh) and 1-ethyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide (EMITFSI) electrolytes have been demonstrated and characterized. The values at 1:3, 3.5, 4 and 4.5 (c-P4VPh:EMITFSI) offer free-standing membranes with high ionic conductivity. In the case of 1:3.5, the best specific capacitance (172.44 F g-1 in a single-electrode) and energy density (72.23 W h kg-1) were obtained at symmetrical cells based on porous carbon electrodes. Every prepared SC was reliable over 1000 cycles in the range of 0-4 V. They also have excellent flexibility and maintain capacitance after completing the bending test a thousand times.

UR - http://www.scopus.com/inward/record.url?scp=84961186478&partnerID=8YFLogxK

U2 - 10.1039/c6ta00643d

DO - 10.1039/c6ta00643d

M3 - Article

AN - SCOPUS:84961186478

SN - 2050-7488

VL - 4

SP - 4386

EP - 4391

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 12

ER -

All solid state flexible supercapacitors operating at 4 v with a cross-linked polymer-ionic liquid electrolyte

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