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Conduction properties of the polymer gel electrolytes of lithium were investigated based on the electrical conductivity and diffusion coefficient using the pulsed gradient spin echo NMR technique. The gel electrolytes prepared by the phase inversion method showed characteristic features in diffusive behavior depending on the kind of immiscible solvent used during the preparation process of the porous...
A novel polymer membrane comprising poly(vinylidene difluoride hexafluoropropylene) (PVdF-HFP) copolymer was prepared by phase inversion technique with two different nonsolvents. The membranes were gelled in an electrolyte solution of 1 M of LiPF 6 in EC/DMC and were subjected to a.c. impedance analysis at temperatures ranging from -30 to 70 o C. The films were characterized by SEM,...
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