| 초록 |
Although lithium-ion batteries (LIBs) show a high energy density, they have safety issues upon using conventional liquid electrolytes. Solid polymer electrolytes (SPEs) as the substitution of organic liquid electrolytes have been studied due to their good mechanical properties and non-volatile characteristics. However, the SPEs generally have low ionic conductivity at room temperature (lower than 10-4 S/cm). To improve the SPE ionic conductivity, we prepared a bicontinuous structural polymer membrane that was combined with solvating lithium salts via a thermally induced phase separation method (TIPS). In this study, polyacrylonitrile (PAN) as a bicontinuous structural framework can provide high surface area for lithium ion transfer and solvating lithium salts which are a mixture of a succinonitrile (SN) and a weaken-binding lithium salts (LiTFSI) can be successfully incorporated into the PAN membrane. |
