Local Organizing Committee

Magnetite-ENR polymer electrolytes doped with various % wt of LiCF3SO3 salt were synthesized in-situ in the presence of ENR and cast into film doped with LiCF3SO3. XRD results confirmed the purity of the as-formed magnetite particles. The diffraction peaks assigned for LiCF3SO3 become more intense as the concentration of salt is increased. FTIR analyses showed that both “free” (dissociation) and ion pairs (association) of LiCF3SO3 were present in the electrolytes system. Nevertheless, the degree of LiCF3SO3 dissociation was enhanced by the presence of magnetite particles. Magnetite particles as small as ~4 nm were successfully synthesized and dispersed in the ENR as revealed by TEM micrographs. The homogeneity and distribution of magnetite particles and LiCF3SO3 salt in the polymer electrolytes system was confirmed by the SEM and x-mapping techniques. Thermal behavior of the polymer electrolytes was evaluated using DSC and TGA. Glass transition temperature (Tg) increased with increasing of %wt LiCF3SO3. This implies the plausible formation of LiENR complexation. LiCF3SO3-doped magnetite-ENR polymer electrolytes were thermally less stable as compared to that of neat ENR. Even so, they still offer good thermal stability to meet the requirement for battery applications where the initial degradation temperature (Ti) is >300 C.