| 초록 |
Gel polymer electrolytes (GPEs) have been intensively researched due to their good electrochemical and mechanical stabilities, compared to liquid electrolytes showing safety issues. Here, we prepare lithium-ion conducting GPEs via dual cross-linking of lithium acrylate (LiA), vinyl silica nanoparticle (VSN), and lithium alginate (LiAlg). This synthetic method can create covalently and ionically cross-linked networks in GPE. The addition of VSN can provide chemically covalent cross-linking points into GPEs, allowing for an increase in mechanical properties. The LiAlg addition can increase ionic conductivity by providing Li ions as ion transporting carriers, as well as further enhance the mechanical strength due to physical cross-linking. We thoroughly investigate the morphology, thermal, viscoelastic, and electrical properties of the GPE using SEM, FTIR, DSC, rheometer, and EIS. Therefore, our study can provide insights into the design of GPEs for stretchable and flexible electronics. |
