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Conductivity in amorphous polyether nanocomposite materials
journal contribution
posted on 1999-11-02, 00:00 authored by A Best, A Ferry, D MacFarlane, Maria ForsythMaria ForsythUsing a completely amorphous polyether we have investigated the effect of the inclusion of a nano-particulate filler on a polymer electrolyte. Nano-sized TiO2 is shown not to significantly affect the conductivity of composite electrolytes containing 1.0 or 1.25 mol/kg LiClO4 or 1.5 or 2.0 mol/kg LiTFSI. At 1.5 mol/kg LiClO4 a significant increase in conductivity is observed. Raman spectroscopy experiments have been used to investigate the effect of filler on ion-aggregation. Only one new vibrational mode can be assigned to the composite which is not due to the polymer electrolyte or the filler. From this work, we believe the increased conductivity observed by previous researchers as a result of filler addition may be largely attributed to the effect on the degree of crystallinity along with some disruption of ion-aggregation by the fillers in PEO based electrolytes.
History
Journal
Solid state ionicsVolume
126Issue
3-4Pagination
269 - 276Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0167-2738eISSN
1872-7689Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
1999, Elsevier Science B.V.Usage metrics
Keywords
amorphouspolymer nanocompositesconductivityDSCFT-Raman spectroscopyScience & TechnologyPhysical SciencesChemistry, PhysicalPhysics, Condensed MatterChemistryPhysicsSOLID POLYMER ELECTROLYTESLITHIUM BATTERIESMOLECULAR-WEIGHTION ASSOCIATIONLICLO4RAMANCOMPLEXESSALTSCATTERINGNACF3SO3Condensed Matter Physics
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