Highly Flexible Environmentally friendly Printed Supercapacitors

Thomas M. Kraft; M. Kujala; A. Railanmaa; S. Lehtimäki; Terho Kololuoma; J. Keskinen; D. Lupo; Matti Mäntysalo

doi:10.1109/NANO.2018.8626290

Highly Flexible Environmentally friendly Printed Supercapacitors

Thomas M. Kraft
, M. Kujala
, A. Railanmaa
, S. Lehtimäki
, Terho Kololuoma
, J. Keskinen
, D. Lupo^*
, Matti Mäntysalo

^*Corresponding author for this work

Tampere University of Technology (TUT)

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

Abstract

In this study, we propose a highly flexible environmentally friendly supercapacitor suitable for low-power Internet-of- Everything applications and the effect of bending (both static and cyclic) on its electrical performance. The supercapacitors are all comprised of carbon electrodes (activated carbon (AC) on a graphite current collector) printed on a flexible plastic substrate, with a NaCl (aq) electrolyte. The capacitance of all the devices is on the order of 0.3 F. Two different substrates (A1 coated PET and PP/PA/EVOH/PA/PE [PP-PE]) as well as two different top-bottom substrate sealing methods (heat sealing, adhesive film) were investigated, with the PP-PE substrate and adhesive film sealing found to be preferable. However, all supercapacitors exhibited a rather high tolerance for bending down to a 1.25 cm radius. Little effect on bending reliability was found on the electrode fabrication process (roll-to-roll (R2R) vs. screen printing and manual stencil printing), however R2R printed devices have a higher uniformity of electrical properties. It was confirmed that, if the sealing method is resilient to bending, the degradation of the printed films are not the limiting factor in device flexibility.

Original language	English
Title of host publication	18th International Conference on Nanotechnology, NANO 2018
Publisher	IEEE Institute of Electrical and Electronic Engineers
Number of pages	4
ISBN (Electronic)	978-1-5386-5336-4
ISBN (Print)	978-1-5386-5337-1
DOIs	https://doi.org/10.1109/NANO.2018.8626290
Publication status	Published - 2 Jul 2018
MoE publication type	A4 Article in a conference publication
Event	18th International Conference on Nanotechnology, NANO 2018 - Cork, Ireland Duration: 23 Jul 2018 → 26 Jul 2018 Conference number: 18

Publication series

Series	Proceedings of the IEEE Conference on Nanotechnology
ISSN	1944-9399

Conference

Conference	18th International Conference on Nanotechnology, NANO 2018
Abbreviated title	NANO 2018
Country/Territory	Ireland
City	Cork
Period	23/07/18 → 26/07/18

Funding

ACKNOWLEDGMENT This work was partially funded by Business Finland as a part of the Naked Approach project [decision #40337/14 (TUT) and 3131/31/2014 (VTT)] and the Towards Digital Paradise project (decision no. 2742/31/2016). M. Mäntysalo is supported by Academy of Finland (grant no. 288945 and 294119) and T. Kraft is thankful for his postdoctoral research fellowship received from the Tampere University of Technology Foundation.

Keywords

supercapacitors
substrates
electrodes
heating systems
printing
carbon
electrolytes

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10.1109/NANO.2018.8626290

Cite this

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title = "Highly Flexible Environmentally friendly Printed Supercapacitors",

abstract = "In this study, we propose a highly flexible environmentally friendly supercapacitor suitable for low-power Internet-of- Everything applications and the effect of bending (both static and cyclic) on its electrical performance. The supercapacitors are all comprised of carbon electrodes (activated carbon (AC) on a graphite current collector) printed on a flexible plastic substrate, with a NaCl (aq) electrolyte. The capacitance of all the devices is on the order of 0.3 F. Two different substrates (A1 coated PET and PP/PA/EVOH/PA/PE [PP-PE]) as well as two different top-bottom substrate sealing methods (heat sealing, adhesive film) were investigated, with the PP-PE substrate and adhesive film sealing found to be preferable. However, all supercapacitors exhibited a rather high tolerance for bending down to a 1.25 cm radius. Little effect on bending reliability was found on the electrode fabrication process (roll-to-roll (R2R) vs. screen printing and manual stencil printing), however R2R printed devices have a higher uniformity of electrical properties. It was confirmed that, if the sealing method is resilient to bending, the degradation of the printed films are not the limiting factor in device flexibility.",

keywords = "supercapacitors, substrates, electrodes, heating systems, printing, carbon, electrolytes",

author = "Kraft, \{Thomas M.\} and M. Kujala and A. Railanmaa and S. Lehtim{\"a}ki and Terho Kololuoma and J. Keskinen and D. Lupo and Matti M{\"a}ntysalo",

year = "2018",

month = jul,

day = "2",

doi = "10.1109/NANO.2018.8626290",

language = "English",

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booktitle = "18th International Conference on Nanotechnology, NANO 2018",

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note = "18th International Conference on Nanotechnology, NANO 2018, NANO 2018 ; Conference date: 23-07-2018 Through 26-07-2018",

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Kraft, TM, Kujala, M, Railanmaa, A, Lehtimäki, S, Kololuoma, T, Keskinen, J, Lupo, D & Mäntysalo, M 2018, Highly Flexible Environmentally friendly Printed Supercapacitors. in 18th International Conference on Nanotechnology, NANO 2018., 8626290, IEEE Institute of Electrical and Electronic Engineers, Proceedings of the IEEE Conference on Nanotechnology, 18th International Conference on Nanotechnology, NANO 2018, Cork, Ireland, 23/07/18. https://doi.org/10.1109/NANO.2018.8626290

Highly Flexible Environmentally friendly Printed Supercapacitors. / Kraft, Thomas M.; Kujala, M.; Railanmaa, A. et al.
18th International Conference on Nanotechnology, NANO 2018. IEEE Institute of Electrical and Electronic Engineers, 2018. 8626290 (Proceedings of the IEEE Conference on Nanotechnology).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Highly Flexible Environmentally friendly Printed Supercapacitors

AU - Kraft, Thomas M.

AU - Kujala, M.

AU - Railanmaa, A.

AU - Lehtimäki, S.

AU - Kololuoma, Terho

AU - Keskinen, J.

AU - Lupo, D.

AU - Mäntysalo, Matti

N1 - Conference code: 18

PY - 2018/7/2

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N2 - In this study, we propose a highly flexible environmentally friendly supercapacitor suitable for low-power Internet-of- Everything applications and the effect of bending (both static and cyclic) on its electrical performance. The supercapacitors are all comprised of carbon electrodes (activated carbon (AC) on a graphite current collector) printed on a flexible plastic substrate, with a NaCl (aq) electrolyte. The capacitance of all the devices is on the order of 0.3 F. Two different substrates (A1 coated PET and PP/PA/EVOH/PA/PE [PP-PE]) as well as two different top-bottom substrate sealing methods (heat sealing, adhesive film) were investigated, with the PP-PE substrate and adhesive film sealing found to be preferable. However, all supercapacitors exhibited a rather high tolerance for bending down to a 1.25 cm radius. Little effect on bending reliability was found on the electrode fabrication process (roll-to-roll (R2R) vs. screen printing and manual stencil printing), however R2R printed devices have a higher uniformity of electrical properties. It was confirmed that, if the sealing method is resilient to bending, the degradation of the printed films are not the limiting factor in device flexibility.

AB - In this study, we propose a highly flexible environmentally friendly supercapacitor suitable for low-power Internet-of- Everything applications and the effect of bending (both static and cyclic) on its electrical performance. The supercapacitors are all comprised of carbon electrodes (activated carbon (AC) on a graphite current collector) printed on a flexible plastic substrate, with a NaCl (aq) electrolyte. The capacitance of all the devices is on the order of 0.3 F. Two different substrates (A1 coated PET and PP/PA/EVOH/PA/PE [PP-PE]) as well as two different top-bottom substrate sealing methods (heat sealing, adhesive film) were investigated, with the PP-PE substrate and adhesive film sealing found to be preferable. However, all supercapacitors exhibited a rather high tolerance for bending down to a 1.25 cm radius. Little effect on bending reliability was found on the electrode fabrication process (roll-to-roll (R2R) vs. screen printing and manual stencil printing), however R2R printed devices have a higher uniformity of electrical properties. It was confirmed that, if the sealing method is resilient to bending, the degradation of the printed films are not the limiting factor in device flexibility.

KW - supercapacitors

KW - substrates

KW - electrodes

KW - heating systems

KW - printing

KW - carbon

KW - electrolytes

UR - https://www.scopus.com/pages/publications/85062258408

U2 - 10.1109/NANO.2018.8626290

DO - 10.1109/NANO.2018.8626290

M3 - Conference article in proceedings

AN - SCOPUS:85062258408

SN - 978-1-5386-5337-1

T3 - Proceedings of the IEEE Conference on Nanotechnology

BT - 18th International Conference on Nanotechnology, NANO 2018

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - 18th International Conference on Nanotechnology, NANO 2018

Y2 - 23 July 2018 through 26 July 2018

ER -

Highly Flexible Environmentally friendly Printed Supercapacitors

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