Battery separators based on electrospun membranes of poly(vinylidene fluoride) (PVDF) have been prepared in order to study the effect of fiber alignment on the performance and characteristics of the membrane. The prepared membranes show an average fiber diameter of 272 nm and a degree of porosity of 87 %. The gel polymer electrolytes are prepared by soaking the membranes in the electrolyte solution. The alignment ...
Dissertação apresentada para obtenção do grau de Mestre em Materiais e Processos de Fabrico, na Faculdade de Engenharia da Universidade do Porto, sob a orientação do Prof. Doutor A. A. Fernandes
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