Study on Carbonization Process of Electrospun PAN/CNCs Battery Separator Composites
The separator is a key component in the structure of lithium-ion batteries.Developing battery separators primarily using bio-based materials is of great significance for the green and sustainable development of the battery industry.In this study,cellulose nanocrystals(CNCs)and polyacrylonitrile(PAN)were used as the primary ma-terials to prepare PAN/CNCs composite fiber membranes via electrospinning technology,and the obtained fiber membranes were pre-oxidized and carbonized to to produce carbonized composite membranes.The structure and performance of the resulting carbonized composite membranes were tested and analyzed,exploring the effects of the electrospinning solution composition,the addition of PVP,and pre-oxidation-carbonization process parameters on their structure and properties.The results indicated that the PAN/CNCs mass ratio,the addition of PVP,and pre-oxidation temperature significantly influenced the morphology and structure of the composite membranes,while the carbonization temperature affected the degree of graphitization and electrical conductivity of the composite mem-branes.
PAN/CNC composite fiber filmlithium-ion battery separatorcomposite fiber membranecarboniza-tion process
万方数据
维普
