초록 |
The synthesis and properties of a solvent-free gel polymer electrolyte based on an imidazolium-PEO-based ionene electrolyte, a PVdF(HFP) support, and the LiTFSI salt are reported. A ternary gel polymer electrolyte film, produced from mixtures of the imidazolium-PEO-based ionene ([IPI][Br]), PVdF(HFP), and LiTFSI, displayed good thermal and mechanical stability. A very high room temperature conductivity of 2.6 × 10-3 S/cm and a broad electrochemical stability window were obtained, demonstrating the utility of the electrolyte for practical Li-ion battery applications. |