| 초록 |
Gel polymer electrolytes (GPEs) are attracting great potential for energy storage because they can provide exceptional performance and avoid safety issue such as the leakage of liquid electrolyte. Here we synthesize GPEs consisting of poly(ethylene glycol) methyl ether methacrylate (PEGMA) and trimethylolpropane ethoxylate triacrylate (ETPTA), lithium salt solution (1 M LiPF6 EC/DMC) by UV irradiation. Both mechanical property and ionic conductivity are adjusted by varying the composition of PEGMA, ETPTA, and lithium salt solution in the GPEs. GPEs with high ionic conductivity (~10-3 S/cm) is infilled into the electrode that can improve the interface characteristics of the electrode-electrolyte. While GPEs with good mechanical strength and relatively small ionic conductivity (~10-4 S/cm) is used as a flexible film onto the electrodes and it offers dual functionality as they can serve as both separator and electrolyte. |
