| 초록 |
PEO-lithium salt complexes are very interesting due to the high energy density, better cycle ability, and safety when they are used as electrolytes in solid-state battery. In this study, hybrid based on PEO and Li-silanol POSS were prepared by solution casting and thermomechanical properties and electrical properties were characterized by DMA, DSC, ionic conductivity and LSV. As the POSS content in the hybrids was increased, the crystallinity of PEO/Li-silanol POSS hybrids was decreased. Tg of hybrids increased by only 4℃ when the POSS content reached 10wt% in the hybrid. The hybrids showed higher storage modulus as compared to pure PEO. PEO/Li-silanol POSS hybrid exhibited as high as ionic conductivity of 3.9×10-3S/㎝ at room temperature. |
