The influence of inert oxide fillers on poly(ethylene oxide) and amorphous poly(ethylene oxide) based polymer electrolytes

Patrik Johansson, Mark A Ratner, Duward F. Shriver

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

An FT-Raman study was performed on lithium salt/polymer/nanosized inert oxide filler (SiO2, Al2O3) systems. Molecular spectroscopy suggests that there is little effect of the filler particles on the "free" anion/ion-pair/ higher aggregate equilibria. Raman line widths indicate enhanced anion disorder when a small amount of filler is introduced. Similarly, DSC measurement indicates a reduction of crystallinity. By contrast, fully amorphous polymer samples display broader Raman line widths and higher glass transition temperatures as the filler concentration is increased, with concomitant lower ion conductivity. The influence of the fillers differs in proportion to the extent of crystallinity of the polymer-salt complex, but within our experimental range the particle size or composition of the filler has little influence on ionic conductivity.

Original languageEnglish
Pages (from-to)9016-9021
Number of pages6
JournalJournal of Physical Chemistry B
Volume105
Issue number37
DOIs
Publication statusPublished - Sep 20 2001

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ethylene oxide
Polyethylene oxides
fillers
Oxides
Electrolytes
Fillers
Polymers
electrolytes
oxides
polymers
Linewidth
Anions
crystallinity
Negative ions
Salts
Molecular spectroscopy
Ions
anions
salts
molecular spectroscopy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

The influence of inert oxide fillers on poly(ethylene oxide) and amorphous poly(ethylene oxide) based polymer electrolytes. / Johansson, Patrik; Ratner, Mark A; Shriver, Duward F.

In: Journal of Physical Chemistry B, Vol. 105, No. 37, 20.09.2001, p. 9016-9021.

Research output: Contribution to journalArticle

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