| 초록 |
Since silica aerogel has not only a large specific surface area and highly uniform porous, but also strong mechanical property. In particular, the large specific surface area allows a large amount of ionic charge carriers to be incorporated into the aerogel system, as well as light and durable electrolyte can be formed, thereby inhibiting the growth of lithium dendrite. Herein, we introduce hydroxyl group (-OH) and vinyl group (C=C) on the surface of silica aerogel particles through varying configurations of precursors. This allows us to synthesize single ion conducting hybrid composite silica aerogel electrolytes that are grafted with two different ionic molecule groups such as lithium {2-[(Trifluoromethanesulfonylimido)-N-4-sulfonylphenyl]ethyl}-trimethoxysilane and lithium 1-[3-(methacryloyloxy)-propylsulfonyl]-1-(trifluoromethylsulfonyl)imide. The ionic conductivity and chemical structure of the synthesized composite electrolyte were investigated by using AC impedance and FT-IR. |
