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Transport and Assoc...
Transport and Association of Ions in Lithium Battery Electrolytes Based on Glycol Ether Mixed with Halogen-Free Orthoborate Ionic Liquid
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- Shah, Faiz Ullah, 1981- (author)
- Luleå tekniska universitet,Kemiteknik
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- Gnezdilov, Oleg I. (author)
- Institute of Physics, Kazan Federal University, 420008, Kazan, Russia
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- Gusain, Rashi (author)
- Luleå tekniska universitet,Kemiteknik
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- Filippov, Andrei, PhD, 1957- (author)
- Luleå tekniska universitet,Kemiteknik,Institute of Physics, Kazan Federal University, 420008, Kazan, Russia
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(creator_code:org_t)
- 2017-11-27
- 2017
- English.
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In: Scientific Reports. - : Nature Publishing Group. - 2045-2322. ; 7
- Related links:
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https://www.nature.c...
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https://www.nature.c...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Ion transport behaviour of halogen-free hybrid electrolytes for lithium-ion batteries based on phosphonium bis(salicylato)borate [P4,4,4,8][BScB] ionic liquid mixed with diethylene glycol dibutyl ether (DEGDBE) is investigated. The Li[BScB] salt is dissolved at different concentrations in the range from 0.15 mol kg−1 to 1.0 mol kg−1 in a mixture of [P4,4,4,8][BScB] and DEGDBE in 1:5 molar ratio. The ion transport properties of the resulting electrolytes are investigated using viscosity, electrical impedance spectroscopy and pulsed-Field Gradient (PFG) NMR. The apparent transfer numbers of ions are calculated from the diffusion coefficients measured by using PFG NMR. PFG NMR data suggested ion association upon addition of Li salt to the [P4,4,4,8][BScB] in DEGDBE solution. This is further confirmed by liquid state 7Li and 11B NMR, and FTIR spectroscopic techniques, which suggest strong interactions between the lithium cation and oxygen atoms of the [BScB]− anion in the hybrid electrolytes.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Chemistry of Interfaces
- Gränsytors kemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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