Existing Condition and Migration Property of Ions in Lithium Electrolytes with Ionic Liquid Solvent

摘要: Ionization conditions of each ionic species in lithium liquid electrolytes, LiTFSI/BMI-TFSI and LiTFSI/BDMI-TFSI, were confirmed based on the diffusion coefficients measured by pulsed gradient spin−echo (PGSE) NMR technique. We found that coefficient ratios cation anion / salt solvent effective guides to evaluate ionization condition responsible for their mobility. Lithium ions be stabilized, forming solvated as Li(TFSI)32-. TFSI- coordination could relaxed dispersion silica form a gel electrolyte, LiTFSI/BDMI-TFSI/silica. It is expected oxygen sites directly attract Li+, releasing coordination. The species, loosing anions, kept random walk feature without restriction attributed from strong chemical morphological effect with polymer. can conclude...