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A 7Li and 19F NMR relaxation study of LiCF3SO3 in plasticised solid polyether electrolytes
journal contribution
posted on 1995-12-01, 00:00 authored by F Ali, Maria ForsythMaria Forsyth, M Garcia, M Smith, J Strange7Li and 19F NMR relaxation time (T1, T2, T1ρ) measurements have been used to probe the dynamics of LiCF3SO3 dissolved in an amorphous co-polymer poly(ethylene oxide-co-propylene oxide), and in particular the influence of the plasticising agents propylene carbonate and dimethyl formamide. The changes in relaxation behaviour of 19F and 7Li with increasing plasticiser concentration are very different, as is the effect of each plasticiser. These differences can be explained qualitatively in terms of the interaction between the plasticiser and the ions. Preliminary 7Li T1ρ measurements reveal two components at low temperatures.
History
Journal
Solid state nuclear magnetic resonanceVolume
5Issue
3Pagination
217 - 225Publisher
Academic PressLocation
London, EnglandPublisher DOI
ISSN
0926-2040eISSN
1527-3326Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
1995, Elsevier Science B.V.Usage metrics
Keywords
lithium-7fluorine-19NMR relaxationlithium triflatepolymer electrolyteScience & TechnologyPhysical SciencesTechnologyChemistry, PhysicalPhysics, Atomic, Molecular & ChemicalPhysics, Condensed MatterSpectroscopyChemistryPhysicsLI-7F-19NUCLEAR-MAGNETIC-RESONANCEPOLYMER ELECTROLYTESIONIC-CONDUCTIVITYCondensed Matter Physics
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