3 documents found, page 1 of 1
Ternary composites of poly(vinylidene fluoride-co-hexafluoropropylene) with sil...
Sengupta, S.; Tubio, C. R.; Pinto, R. S.; Barbosa, J.; Silva, M. M.; Gonçalves, R.; Kundu, M.; Lanceros-Mendez, S.; Costa, C. M.In the realm of polymer composites, there is growing interest in the use of more than one filler for achieving multifunctional properties. In this work, a composite separator membrane has been developed for lithium-ion battery application, by incorporating conductive silver nanowires (AgNWs) and titanium dioxide (TiO2) nanoparticles into a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) polymer matr...
Mesoporous poly(vinylidene fluoride-co-trifluoroethylene) membranes for lithium...
Costa, C. M.; Kundu, M.; Dias, J. C.; Pereira, João Pedro Nunes; Botelho, Gabriela; Silva, Maria Manuela; Lanceros-Méndez, S.Mesoporous separator membranes based on poly(vinylidene fluoride-co-trifluoroethylene), PVDF-TrFE, were prepared through the removal of ZnO nanoparticles from the polymer matrix composite. Different filler concentrations were used, and the evaluation of the morphology, mechanical properties, uptake and ionic conductivity of the membranes were demonstrated that they depend on initial ZnO content in the composite...
Silica/poly(vinylidene fluoride) porous composite membranes for lithium-ion bat...
Costa, C. M.; Kundu, M.; Cardoso, Vanessa Fernandes; Machado, A. V.; Silva, Maria Manuela; Lanceros-Méndez, S.Separator membranes based on silica/poly(vinylidene fluoride) composites were prepared by a non-solvent induced phase separation (NIPS) process with different air exposure times before immersion in a water coagulation bath and for the same filler content of 20 wt%. Mesoporous silica spheres (SS) of ~ 400 nm average diameter were synthetized by sol-gel method and dispersed into the polymer matrix. It was demonst...