Cellulose based Hybrid Separators for High Performance Li-ion Batteries

Separators not only affect the safety but also electrochemical performance and they are important components in lithium ion batteries. Many researches have been conducted to fabricate separators with high properties thermal stability. High porosity is for stability vital of cells. Electrospinning can be used produce nanofibers porosity. Ceramic particles could improve performance. Electro-spraying applied incorporate ceramic nanoparticles separators. Cellulose based hybrid nanofiber membrane were prepared via electrospinning electro-spraying. Morphology structural studied by using SEM, XRD FTIR. N-butanol was measurements. EIS ionic conductivity interfacial resistance studies. Electrochemical evaluated use as separator lithium-ion It found that cellulose membranes had superior good due large electro-sprayed SiO2 nanoparticles. Large liquid electrolyte uptake 240%, oxidation limit over 4.5 V, low 190 ohm·cm2 observed when Li/LiFePO4 In addition, cell capacities above 160 mAh/g cycling demonstrated.