Nanoparticulate AlO(OH)n filled polyvinylidenefluoride-co-hexafluoropropylene based microporous membranes for lithium ion batteries

This paper presents the nanosized AlO(OH)(n) incorporated microporous membranes by phase inversion technique, for the first time, using polyvinylidenefluoride-co-hexafluoropropylene as a host matrix. The transport properties of the membranes were studied and analyzed by various techniques, namely, alternating current impedance spectroscopy, Fourier transform infrared spectroscopy, Raman spectra, differential scanning calorimetry, tensile strength, X-ray diffraction, and scanning electron microscope. Further, Brunauer-Emmett-Teller surface area measurements, percentage of crystallinity, electrolyte uptake, porosity, activation energy, and Mac-Mullin number were also calculated for these microporous membranes. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3122671]