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Journal of Nanomaterials
Volume 2012 (2012), Article ID 216012, 8 pages
http://dx.doi.org/10.1155/2012/216012
Research Article

Effect of Oxide Nanoparticles on Thermal and Mechanical Properties of Electrospun Separators for Lithium-Ion Batteries

1Electrical Engineering Department, Alma Mater Studiorum-University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy
2Chemistry Department and National Consortium of Materials Science and Technology (INSTM, RU Bologna), Alma Mater Studiorum-University of Bologna, Via Selmi 2, 40126 Bologna, Italy
3Dipartimento di Scienze del Farmaco, Universitá “G. d'Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy

Received 23 July 2012; Revised 20 September 2012; Accepted 1 October 2012

Academic Editor: Russell E. Gorga

Copyright © 2012 Marco Zaccaria et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study reports the fabrication and characterization of poly(ethylene oxide) (PEO) and poly(vinylidenefluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) nanofibrous separators for lithium-ion batteries loaded with different amounts of fumed-silica and tin oxide nanoparticles. Membrane morphological characterization (SEM, TEM) showed the presence of good-quality nanofibres containing nanoparticles. Thermal degradation and membrane mechanical properties were also investigated, and a remarkable effect of nanoparticle addition on membrane mechanical properties was found. In particular, PEO membranes were strengthened by the addition of metal oxide, whereas PVDF-CTFE membranes acquired ductility.