| 초록 |
The high dielectric constant (εS) is one of the characteristics required to improve the performance of energy storage devices such as supercapacitors and lithium metal batteries. In this study, we synthesized poly(lithium acrylate) (PLiA)-based lithium single-ion conducting polymer electrolytes, and the dielectric constant (εS) was increased by adding N-Methylacetamide (NMA) plasticizer with εS=170 at T=30 ℃. Furthermore, the NMA-containing PLiA-based single-ion polymer electrolytes exhibit high lithium transference number (tLi+) approaching unity, as well as high ionic conductivity (σDC≈10-4 S/cm at 25℃). We thoroughly investigated the electrochemical, thermal, ion conducting, and mechanical properties of the single-ion conductors using various characterization methods, such as EIS, DSC, rheometer, and FTIR. The experimental results can provide insight into the design of next-generation lithium metal batteries (LMBs). |
