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Pyrrolidium- and Im...
Pyrrolidium- and Imidazolium-Based Ionic Liquids and Electrolytes with Flexible Oligoether Anions
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- Ahmed, Mukhtiar (author)
- Luleå tekniska universitet,Kemiteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Filippov, Andrei, PhD, 1957- (author)
- Luleå tekniska universitet,Kemiteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Johansson, Patrik, 1969 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Materials Physics, Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
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- Shah, Faiz Ullah, 1981- (author)
- Luleå tekniska universitet,Kemiteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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(creator_code:org_t)
- John Wiley & Sons, 2024
- 2024
- English.
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In: ChemPhysChem. - : John Wiley & Sons. - 1439-7641 .- 1439-4235. ; 25:9
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https://doi.org/10.1...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A new class of fluorine-free ionic liquids (ILs) and electrolytes based on aliphatic flexible oligoether anions, 2-(2-methoxyethoxy)acetate (MEA) and 2-[2-(2-methoxyethoxy)ethoxy]acetate (MEEA), coupled with pyrrolidinium and imidazolium cations is introduced. For the ILs with MEEA anions, Li+ conducting electrolytes are created by doping the ILs with 30 mol % of LiMEEA. The structural flexibility of the oligoether functionality in the anion results in glass transition temperatures (Tg) as low as −60 °C for the neat ILs and the electrolytes. The imidazolium-based ILs and electrolytes reveal better thermal stabilities but higher Tg and lower electrochemical stabilities than the corresponding pyrrolidinium-based analogues. All neat ILs show comparable transport properties for the cations and these decrease by the addition of lithium salt – the pyrrolidinium-based electrolyte being affected the most.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- lithium-ion batteries
- NMR diffusometry
- Fluorine-free ionic liquids
- electrochemistry
- electrolytes
- Chemistry of Interfaces
Publication and Content Type
- art (subject category)
- ref (subject category)
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