Abstract
Polymer (PVdF-CO-HFP) composites containing nano MgO filler and lithiumtriflate salt were prepared using a solution cast technique. All samples were characterized using different techniques such as X-ray diffraction (XRD), thermal analysis (TG, DSC), Fourier transform infra–red spectroscopy (FT-IR) and scanning electron microscopy (SEM). Structural investigation of all samples were conducted in a well – sequence; firstly, in presence of nano filler, and secondly in presence of LTF salt to study the structural changes (crystallinity), and their effects on melting, morphology and thermal stability behavior. In presence of definite filler and salt concentrations, the basic polymer matrix exhibited suitable structure, followed by good conduction properties. A sample containing 6wt% MgO and 25wt% LTF showed AC-ionic conductivity value of about 8.78×10−5ohm−1·cm−1 at room temperature. The same sample exhibited good thermal stability behavior (Td=402.99°C). To further investigate the stability of this sample, electrochemical and mechanical stability properties were also studied.
Polymer composite containing nano MgO filler and lithiumtriflate salt: a promised conductive and thermally stable electrolyte for lithium ion batteries application. [Display omitted]
•Polymer composites containing nano MgO filler and LTF salt were successfully prepared with suitable matrix structure.•With a concentration of 6wt% MgO and 25wt% LTF, enhanced conductivity and thermal stability behavior were observed.•MCE3 sample exhibited good electrochemical and mechanical stability.