초록 |
Interfaces between organic and inorganic are important to maximize the synergy of hybridization. Polyethylene separator coated with inorganic film is a presentative technology for manufacturing a variety of secondary batteries with high safety. Unfortunately, organic/inorganic hybrid separators have the disadvantage of non-ideal interfaces, so they have poor thermal/dimensional stability. Here, we report a simple way to solve the shortcomings of the non-ideal interface between polyethylene separators and SiO2 deposited to produce highly stable separators through the strong chemical connection (Si-O-C or Si-CH3) by direct electron beam irradiation. Simple treatment with dose-optimized electron beams can create thermally stable polymer separators to improve battery safety at high temperatures, with enhanced ion transport between the cathode and the anode inducing better charge/discharge behavior. |