Development of Long-cyling and Flexible Porous Polymer Electrolyte via Polymerization-Induced Phase Separation
발표자
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초록
내용
Developing next-generation batteries with higher energy density and improved safety is a main concern for current battery industry. Even though lithium metal batteries (LMBs) have much higher energy density (3860 mAhg-1) compared to conventional lithium-ion batteries (LIBs), extremely reactive nature of lithium metal anode gives rise to safety issues based on lithium dendrite formation. In this study, we have developed all solid-state ethylene oxide-based polymer electrolyte with porous structure via polymerization-induced phase separation (PIPS). We have used cosolvent to mix nonpolar solvent with ion conducting solution containing lithium salt. After successive procedures of polymerization and drying, resulting porous polymer electrolyte (PPE) exhibited ionic conductivity over 10-5 S/cm at 25℃. PPE was further characterized by SEM imaging, DSC, TGA, flexbility, LSV, galvanostatic cycling analyses.