Morphological, rheological and electrochemical studies of Poly(ethylene oxide) electrolytes containing fumed silica nanoparticles

Publication Type

Journal Article

Date Published

11/2004

Authors

DOI

Abstract

In this paper, the rheology and crystallization of composite Poly(ethylene oxide) (PEO) electrolytes were studied by dynamic mechanical analysis, DSC and polarized light microscopy. The effects of fumed silica nanoparticles on the conductivities of the polymer electrolytes at temperatures above and below their melting points were measured and related to their rheology and crystallization behavior, respectively. The electrolyte/electrode interfacial properties and cycling performances of the composite polymer electrolytes in Li/Li cells are also discussed. The measured electrochemical properties were found to depend heavily on the operational environments and sample processing history.

Journal

Solid State Ionics

Volume

175

Year of Publication

2004

Issue

1-4

Organization