Preparation of novel carbon microfiber/carbon nanofiber-dispersed polyvinyl alcohol-based nanocomposite material for lithium-ion electrolyte battery separator

► A novel material as a potential Li-ion electrolyte battery separator is synthesized. ► Synthesis steps include esterification of polyvinyl acetate to produce PVA-gel. ► The film is in-situ incorporated (dispersed) with carbon micro and nanofibers. ► The produced film has improved performance as a battery separator.