Structure and transport properties of PEO-Li2O center dot 3B(2)O(3) mixed-phase composites

Authors
Quartarone, E Mustarelli, P Tomasi, C Magistris, A
Citation
E. Quartarone et al., Structure and transport properties of PEO-Li2O center dot 3B(2)O(3) mixed-phase composites, J PHYS CH B, 102(48), 1998, pp. 9610-9616
Citations number
43
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
102
Issue
48
Year of publication
1998
Pages
9610 - 9616
Database
ISI
SICI code
1520-6106(19981126)102:48<9610:SATPOP>2.0.ZU;2-Y
Abstract
The conductivity of poly(ethylene oxide) (PEO) based electrolytes can be en hanced by addition of ceramic fillers. We study the properties of composite host matrices obtained by adding to PEO a lithium triborate glass prepared by sol-gel. By means of X-ray diffraction and C-13 NMR at the magic angle, we show that there is no chemical interaction among the PEO chains and the filler. Lithium cations enter the PEO structure and increase the polymer a morphous phase by creating transient cross-links. The conductivity data are analyzed in terms of the Meyer-Neldel equation.