| 초록 |
Polyacrylamide (PAM) hydrogel-based SPEs combined with vinyl silica nanoparticles (VSNPs) as cross-linkers have been previously developed for the development of high stretchable and flexible SPEs. However, these SPEs have lower ionic conductivities than the liquid electrolytes. In order to overcome this problem, we functionalized the PAM hydrogel-based SPE with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salts, allowing for the enhancement of the ionic conductivity. In this study, we systematically compared the ionic conductivities of the PAM-VSNP SPEs prepared by changing synthetic conditions of VSNP and LiTFSI contents and polymerization temperature. The incorporation of LiTFSI into the SPE not only led to an improvement in mechanical properties, but also its conductivity increased by more than 2 orders of magnitude. |
