Study on Fundamental Properties of Solvate Electrolytes and Their Application in Batteries

Li salts and polar solvents form solvates, certain solvates have low melting temperatures remain in a liquid state at room temperature. Liquid-state exhibit ionic conductivity can be used as electrolytes lithium batteries. The author co-workers systematically studied the interactions of Li+ ions with anions, Li+-coordination structures, thermal properties, transport electrochemical properties molten-solvate electrolytes. In molten almost all solvent molecules are coordinated to ions, uncoordinated (free) rare. Additionally, anions involved coordination ions. solvate show non-flammability negligible vapor pressure temperature because extremely concentration (activity) free solvent, which improve stability activity results wide window electrolytes, thereby suppressing undesired side reactions significantly affects reaction processes, such reduction sulfur (S8) Li–S battery oxygen (ORR) Li–air battery. solubility intermediates S8 cathode ORR decreases decrease activity, enables highly efficient charge–discharge diffuse migrate by exchanging ligands (solvents anions). Certain high ion transference numbers over 0.5, these useful mitigating overpotential during charging discharging batteries current densities.