3D printable gel polymer electrolyte: a study on the effect of binary solvent system.
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초록
내용
Gel polymer electrolytes (GPEs) have received extensive attention due to their high ionic conductivity, wide electrochemical window, and favorable solid electrolyte interface compatibility. Nonetheless, the challenges persist, such as the low ionic transfer rate, inferior mechanical strength, thermal stability, and suitability for 3D printing. Here, we investigated GPE formation in a binary solvent (deionized water and organic) system. The influence of organic solvent on the deviation of gelation behavior, molecular interactions, temperature stability, and ionic conductivity properties were explored through Rheological measurements, FTIR, TGA, and EIS at varying concentrations, respectively. The GPE with high ionic conductivity and thermal stability was 3D printed for its versatility. Insights into GPE gelation in the binary solvent system offer possibilities to optimize gel electrolytes with improved properties for printable and eco-friendly energy storage devices.