Manuelstephan, A. and Teeters, D. (2003) Characterization of PVdF-HFP polymer membranes prepared by phase inversion techniques I. Morphology and charge/discharge studies. Electrochimica Acta, 48. pp. 2143-2148. ISSN 0013-4686

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Abstract

A novel nanoporous polymer membrane comprised of poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) copolymer was prepared by phase inversion techniques using two different non-solvents. The films were subjected to scanning electron microscope (SEM) and nitrogen adsorption/desorption analysis. The morphology and porosity of the membranes are correlated with the chemical structure of the non-solvents used. Also, nanoparticle LiCr0.01Mn1.99O4 cathode material was prepared by solidstate reaction followed by ball milling. The prepared samples were analyzed using X-ray diffraction (XRD) and atomic force microscopy (AFM). The charge/discharge behavior of lithium cells made from the coupling of the nanoporous polymer membrane with the LiCr0.01Mn1.99O4 nanoparticle cathode was studied. The cathode nanoparticles resulting from ball milling were found to be more important in enhanced cell performance than the nanostructure of the nanoporous polymer membranes.

Item Type:	Article
Uncontrolled Keywords:	Phase inversion; Nanoparticles; Morphology; Nanopores; Solid-state reaction; Charge/discharge studies
Subjects:	Electrochemical Power Sources
Divisions:	UNSPECIFIED
Depositing User:	ttbdar CECRI
Date Deposited:	24 Mar 2012 06:31
Last Modified:	24 Mar 2012 06:31
URI:	http://cecri.csircentral.net/id/eprint/872

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