| 초록 |
Compact 3D network solid polymer electrolytes (SPEs) have been investigated for potential use in multifunctional wearable or structural energy storage systems such as supercapacitor and batteries that require high mechanical performance without sacrificing ionic conductivity. We developed 3D network SPEs, which prepared from fully formulated epoxy resin and the solvating electrolytes containing a mixture of Li salts, oligoethers, and ionic liquids, by a simple thermal curing process. The cross-linking process gives rise to polymerization-induced microphase separation, where an insulating phase is the epoxy framework with high mechanical properties, and the other conducting phase is the ionic conducting electrolyte, providing high ionic conductivity. Then, we thoroughly investigated the effect of Li salt concentration on ionic conductivity, morphology, dynamic mechanical and thermal properties, using dielectric spectroscopy, Fe-SEM, DMA, and DSC, respectively. |
