| 초록 |
Polymer electrolytes are promising materials for electrochemical device applications, namely, high energy density rechargeable batteries, fuel cells, supercapacitors, electrochromic displays, etc. The area of polymer electrolytes has gone through various developmental stages. Nowadays, the use of ionic liquid electrolytes could improve the performance, security, speed, cyclability, and long term stability of lithium batteries. In this study, we synthesized poly(ethylene oxide)-lithium bis(trifluoromethane sulfonyl) imide(LITFSI) composite electrolyte containing a different of 1-ethyl-3-methylimidazolium tetrafluoroborate. The crystallinity and thermal stability of the CPEs were estimated using differential scanning calorimeter (DSC). The electrochemical properties of CPEs were measured by the AC impedance method. The results provide upgrade of ionic conductivity at room temperature for PEO based polymer electrolytes. |
