Asymmetric and symmetric supercapacitors based on polypyrrole and activated carbon electrodes

Jari Keskinen; Saara Tuurala; Martin Sjödin; Kaisa Kiri; Leif Nyholm; Timo Flyktman; Maria Strømme; Maria Smolander

doi:10.1016/j.synthmet.2015.02.034

Asymmetric and symmetric supercapacitors based on polypyrrole and activated carbon electrodes

Jari Keskinen^*, Saara Tuurala, Martin Sjödin, Kaisa Kiri, Leif Nyholm, Timo Flyktman, Maria Strømme, Maria Smolander

^*Corresponding author for this work

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

35 Citations (Scopus)

Abstract

Supercapacitors were prepared using either two polypyrrole (PPy) composite electrodes or one PPy composite and one activated carbon electrode. The PPy composite electrodes were either freestanding paper-like sheets or PPy films printed on graphite ink coated aluminium/PET laminate substrates, using Cladophora algae derived cellulose as the substrate or binder, respectively. The specific capacitance of the PPy electrodes was found to be about 200 F g^-1 depending on the manufacturing method, yielding supercapacitors with capacitances between 0.45 and 3.8 F and energy efficiencies of over 90%. For an asymmetric device with activated carbon positive electrode and PPy negative electrode a capacitance loss of 5% was seen after 14300 cycles.

Original language	English
Pages (from-to)	192-199
Number of pages	8
Journal	Synthetic Metals
Volume	203
DOIs	https://doi.org/10.1016/j.synthmet.2015.02.034
Publication status	Published - 2015
Externally published	Yes

Keywords

Activated carbon
Asymmetric
Conductive polymer
Polypyrrole
Supercapacitor

ASJC Scopus subject areas

Mechanical Engineering
Mechanics of Materials
Materials Chemistry
Metals and Alloys
Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.synthmet.2015.02.034

Cite this

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title = "Asymmetric and symmetric supercapacitors based on polypyrrole and activated carbon electrodes",

abstract = "Supercapacitors were prepared using either two polypyrrole (PPy) composite electrodes or one PPy composite and one activated carbon electrode. The PPy composite electrodes were either freestanding paper-like sheets or PPy films printed on graphite ink coated aluminium/PET laminate substrates, using Cladophora algae derived cellulose as the substrate or binder, respectively. The specific capacitance of the PPy electrodes was found to be about 200 F g-1 depending on the manufacturing method, yielding supercapacitors with capacitances between 0.45 and 3.8 F and energy efficiencies of over 90%. For an asymmetric device with activated carbon positive electrode and PPy negative electrode a capacitance loss of 5% was seen after 14300 cycles.",

keywords = "Activated carbon, Asymmetric, Conductive polymer, Polypyrrole, Supercapacitor",

author = "Jari Keskinen and Saara Tuurala and Martin Sj{\"o}din and Kaisa Kiri and Leif Nyholm and Timo Flyktman and Maria Str{\o}mme and Maria Smolander",

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doi = "10.1016/j.synthmet.2015.02.034",

language = "English",

volume = "203",

pages = "192--199",

journal = "Synthetic Metals",

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TY - JOUR

T1 - Asymmetric and symmetric supercapacitors based on polypyrrole and activated carbon electrodes

AU - Keskinen, Jari

AU - Tuurala, Saara

AU - Sjödin, Martin

AU - Kiri, Kaisa

AU - Nyholm, Leif

AU - Flyktman, Timo

AU - Strømme, Maria

AU - Smolander, Maria

PY - 2015

Y1 - 2015

N2 - Supercapacitors were prepared using either two polypyrrole (PPy) composite electrodes or one PPy composite and one activated carbon electrode. The PPy composite electrodes were either freestanding paper-like sheets or PPy films printed on graphite ink coated aluminium/PET laminate substrates, using Cladophora algae derived cellulose as the substrate or binder, respectively. The specific capacitance of the PPy electrodes was found to be about 200 F g-1 depending on the manufacturing method, yielding supercapacitors with capacitances between 0.45 and 3.8 F and energy efficiencies of over 90%. For an asymmetric device with activated carbon positive electrode and PPy negative electrode a capacitance loss of 5% was seen after 14300 cycles.

AB - Supercapacitors were prepared using either two polypyrrole (PPy) composite electrodes or one PPy composite and one activated carbon electrode. The PPy composite electrodes were either freestanding paper-like sheets or PPy films printed on graphite ink coated aluminium/PET laminate substrates, using Cladophora algae derived cellulose as the substrate or binder, respectively. The specific capacitance of the PPy electrodes was found to be about 200 F g-1 depending on the manufacturing method, yielding supercapacitors with capacitances between 0.45 and 3.8 F and energy efficiencies of over 90%. For an asymmetric device with activated carbon positive electrode and PPy negative electrode a capacitance loss of 5% was seen after 14300 cycles.

KW - Activated carbon

KW - Asymmetric

KW - Conductive polymer

KW - Polypyrrole

KW - Supercapacitor

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DO - 10.1016/j.synthmet.2015.02.034

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VL - 203

SP - 192

EP - 199

JO - Synthetic Metals

JF - Synthetic Metals

ER -

Asymmetric and symmetric supercapacitors based on polypyrrole and activated carbon electrodes

Abstract

Keywords

ASJC Scopus subject areas

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