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Mass Transport in “...
Mass Transport in “Water-in-Polymer Salt” Electrolytes
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- Khan, Ziyauddin (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Linköping University
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- Martinelli, Anna, 1978 (author)
- Chalmers University of Technology, Sweden,Chalmers Univ Technol, Dept Chem & Chem Engn, SE-41296 Gothenburg, Sweden.,Chalmers tekniska högskola
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- Franco, Leandro R. (author)
- Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Karlstad Univ, Dept Engn & Phys, S-65188 Karlstad, Sweden.,Karlstad University
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- Kumar, Divyaratan (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Linköping University
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- Idström, Alexander, 1983 (author)
- Chalmers University of Technology, Sweden,Chalmers Univ Technol, Dept Chem & Chem Engn, SE-41296 Gothenburg, Sweden.,Chalmers tekniska högskola
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- Evenäs, Lars, 1976 (author)
- Chalmers University of Technology, Sweden,Chalmers Univ Technol, Dept Chem & Chem Engn, SE-41296 Gothenburg, Sweden.,Chalmers tekniska högskola
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- Araujo, Moyses, 1975- (author)
- Uppsala universitet,Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Uppsala University, Sweden,Materialteori,Karlstad Univ, Dept Engn & Phys, S-65188 Karlstad, Sweden.,Karlstad Univ, Sweden; Uppsala Univ, Sweden,Karlstad University
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- Crispin, Xavier (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Linköping University
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(creator_code:org_t)
- American Chemical Society (ACS), 2023
- 2023
- English.
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In: Chemistry of Materials. - : American Chemical Society (ACS). - 0897-4756 .- 1520-5002. ; 35, s. 6382-6395
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Abstract
Subject headings
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- “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.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- 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
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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Khan, Ziyauddin
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Martinelli, Anna ...
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Franco, Leandro ...
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Kumar, Divyarata ...
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Idström, Alexand ...
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Evenäs, Lars, 19 ...
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Araujo, Moyses, ...
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Crispin, Xavier
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
- Articles in the publication
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Chemistry of Mat ...
- By the university
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Karlstad University
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Uppsala University
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Linköping University
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Chalmers University of Technology