| 초록 |
Bis(trifluoromethane) sulfonamide anion (TFSI-) is important in lithium-ion battery as a counterions of lithium ion, since it’s high delocalization and high dissociation between cation and anion and also have a high conductivity. By anchoring covalently lithium 1-[3-(methacryloyloxy)propylsulfonyl]-1-(trifluoromethanesulfonyl)imide (LiMTFSI) ,which is monomers having double bond, with vinyltrimethoxysilane (VTMS) on surface of silica nanoparticle can develop a single-ion conducting silica aerogel, thereby only lithium ions are mobile. This hybrid composite electrolyte has high ionic conductivity and high lithium transference number more than conventional salt-in polymer electrolyte. Also, it display improved mechanical properties and can prevent lithium dendrite growth. Their chemical structure and ionic conductivity are investigated using FTIR and AC impedance spectroscopy. |
