Highly flexible and non-toxic natural polymer gel electrolyte for printed supercapacitors for IoT

Anna Railanmaa (Corresponding Author), Manu Kujala, Jari Keskinen, Terho Kololuoma, Donald Lupo

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Gelatin offers a safe and sustainable alternative for gel electrolytes in printed supercapacitors. In this work, the performance of a non-toxic natural polymer electrolyte is studied in screen and stencil-printed supercapacitors. The basic electrical properties are determined with samples prepared on laboratory scale; subsequently, roll-to-roll printed samples are used to observe behavior of the samples under severe mechanical stress. With a 2 M NaCl gel electrolyte, electrical performance equal to that of a 1 M liquid electrolyte is reached, and the devices endure bending down to a 10 mm radius. Even below that, functional devices are successfully measured, although leakage current levels deteriorate somewhat during bending. However, even these samples recover to baseline levels after they are straightened and can be thus used in various applications, since devices with no short circuits or permanent degradation can be successfully prepared.

Original languageEnglish
Article number168
JournalApplied Physics A: Materials Science and Processing
Volume125
Issue number3
DOIs
Publication statusPublished - 1 Mar 2019
MoE publication typeNot Eligible

Fingerprint

Natural polymers
electrochemical capacitors
Electrolytes
Gels
electrolytes
gels
polymers
short circuits
gelatins
Gelatin
Leakage currents
Short circuit currents
Electric properties
leakage
electrical properties
degradation
Degradation
radii
Internet of things
Supercapacitor

Cite this

@article{8e49172b9c724e34b6cae9202eab8ad8,
title = "Highly flexible and non-toxic natural polymer gel electrolyte for printed supercapacitors for IoT",
abstract = "Gelatin offers a safe and sustainable alternative for gel electrolytes in printed supercapacitors. In this work, the performance of a non-toxic natural polymer electrolyte is studied in screen and stencil-printed supercapacitors. The basic electrical properties are determined with samples prepared on laboratory scale; subsequently, roll-to-roll printed samples are used to observe behavior of the samples under severe mechanical stress. With a 2 M NaCl gel electrolyte, electrical performance equal to that of a 1 M liquid electrolyte is reached, and the devices endure bending down to a 10 mm radius. Even below that, functional devices are successfully measured, although leakage current levels deteriorate somewhat during bending. However, even these samples recover to baseline levels after they are straightened and can be thus used in various applications, since devices with no short circuits or permanent degradation can be successfully prepared.",
author = "Anna Railanmaa and Manu Kujala and Jari Keskinen and Terho Kololuoma and Donald Lupo",
year = "2019",
month = "3",
day = "1",
doi = "10.1007/s00339-019-2461-8",
language = "English",
volume = "125",
journal = "Applied Physics A: Materials Science and Processing",
issn = "0947-8396",
publisher = "Springer",
number = "3",

}

Highly flexible and non-toxic natural polymer gel electrolyte for printed supercapacitors for IoT. / Railanmaa, Anna (Corresponding Author); Kujala, Manu; Keskinen, Jari; Kololuoma, Terho; Lupo, Donald.

In: Applied Physics A: Materials Science and Processing, Vol. 125, No. 3, 168, 01.03.2019.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Highly flexible and non-toxic natural polymer gel electrolyte for printed supercapacitors for IoT

AU - Railanmaa, Anna

AU - Kujala, Manu

AU - Keskinen, Jari

AU - Kololuoma, Terho

AU - Lupo, Donald

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Gelatin offers a safe and sustainable alternative for gel electrolytes in printed supercapacitors. In this work, the performance of a non-toxic natural polymer electrolyte is studied in screen and stencil-printed supercapacitors. The basic electrical properties are determined with samples prepared on laboratory scale; subsequently, roll-to-roll printed samples are used to observe behavior of the samples under severe mechanical stress. With a 2 M NaCl gel electrolyte, electrical performance equal to that of a 1 M liquid electrolyte is reached, and the devices endure bending down to a 10 mm radius. Even below that, functional devices are successfully measured, although leakage current levels deteriorate somewhat during bending. However, even these samples recover to baseline levels after they are straightened and can be thus used in various applications, since devices with no short circuits or permanent degradation can be successfully prepared.

AB - Gelatin offers a safe and sustainable alternative for gel electrolytes in printed supercapacitors. In this work, the performance of a non-toxic natural polymer electrolyte is studied in screen and stencil-printed supercapacitors. The basic electrical properties are determined with samples prepared on laboratory scale; subsequently, roll-to-roll printed samples are used to observe behavior of the samples under severe mechanical stress. With a 2 M NaCl gel electrolyte, electrical performance equal to that of a 1 M liquid electrolyte is reached, and the devices endure bending down to a 10 mm radius. Even below that, functional devices are successfully measured, although leakage current levels deteriorate somewhat during bending. However, even these samples recover to baseline levels after they are straightened and can be thus used in various applications, since devices with no short circuits or permanent degradation can be successfully prepared.

UR - http://www.scopus.com/inward/record.url?scp=85061703888&partnerID=8YFLogxK

U2 - 10.1007/s00339-019-2461-8

DO - 10.1007/s00339-019-2461-8

M3 - Article

AN - SCOPUS:85061703888

VL - 125

JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

SN - 0947-8396

IS - 3

M1 - 168

ER -