Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • apa.csl
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Mass Transport in “Water-in-Polymer Salt” Electrolytes
Linköping University, Sweden.
Chalmers University of Technology, Sweden.
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics (from 2013).ORCID iD: 0000-0002-8692-3396
Linköping University, Sweden.
Show others and affiliations
2023 (English)In: Chemistry of Materials, ISSN 0897-4756, E-ISSN 1520-5002, Vol. 35, p. 6382-6395Article in journal (Refereed) Published
Abstract [en]

“Water-in-polymer salt” electrolytes (WiPSEs) based on potassium polyacrylate (PAAK) belong to a new family of “water-in-salt” electrolytes that is envisioned as a potential solution for large-scale supercapacitors to balance the electric grid at short time scales. The WiPSEs display a broad electrochemical stability window up to 3 V, yet they are nonflammable and provide high ionic conductivity (100 mS/cm) as required in high-power devices. However, the transport of matter in PAAK-based WiPSEs has not been studied. In this work, we have extensively characterized PAAK by spectroscopic methods such as Raman spectroscopy and NMR diffusometry to determine the state of water and elucidate the mechanism of ionic transport as well as its interplay with water and polymer chain dynamics, which reveals that a significant proportion of the transport in WiPSEs is attributed to hydrated cations. The results are further supported by molecular dynamics (MD) simulations. Finally, the potential of WiPSEs based on PAAK is demonstrated in an activated carbon-based supercapacitor operating up to 2 V with reasonable self-discharge. This proof of concept shows promise for low-cost and large-scale supercapacitors.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2023. Vol. 35, p. 6382-6395
Keywords [en]
Activated carbon, Display devices, Electric discharges, Electrolytes, Electrolytic capacitors, Molecular dynamics, Spectroscopic analysis, American Chemical Society, Electric grids, Electrochemical stabilities, High-power devices, Large-scales, Non-flammable, Polymer salts, Salt electrolytes, Short time scale, Spectroscopic method, Supercapacitor
National Category
Physical Chemistry
Research subject
Physics
Identifiers
URN: urn:nbn:se:kau:diva-96498DOI: 10.1021/acs.chemmater.3c01089ISI: 001040465300001Scopus ID: 2-s2.0-85167801328OAI: oai:DiVA.org:kau-96498DiVA, id: diva2:1792317
Funder
Knut and Alice Wallenberg Foundation, 2009-00971, KAW 2020.0174Swedish Research Council, 2020-05223Swedish Energy Agency, P52023-1ÅForsk (Ångpanneföreningen's Foundation for Research and Development), 21-130, 22-134Available from: 2023-08-29 Created: 2023-08-29 Last updated: 2023-09-04Bibliographically approved

Open Access in DiVA

fulltext(4301 kB)44 downloads
File information
File name FULLTEXT01.pdfFile size 4301 kBChecksum SHA-512
a0b7678b6d464bc7be1f85d404184ae8adb88f19ae66c6da7e6974344468d6b4d571f4fad66305dda1bad480bccf8dab8c524f158e1d964bc6170c29907dda56
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records

Franco, Leandro R.Araujo, Moyses

Search in DiVA

By author/editor
Franco, Leandro R.Araujo, Moyses
By organisation
Department of Engineering and Physics (from 2013)
In the same journal
Chemistry of Materials
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 51 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 156 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • apa.csl
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf