【摘要】 以六氟磷酸为原料,经络合反应、锂交换反应和浓硫酸反应制备了LiPF₆。铝盐浓度为1.0 mol/L时,LiPF₆在碳酸乙烯酯中的电导率是7.53 mS/cm。将自制LiPF₆配以不同电解液有机溶剂,在最佳锂盐浓度、最佳溶剂及溶剂配比下,测定了LiPF₆的电导率。结果表明,自制LiPF₆的电导率高,LiPF₆的品质符合锂离子电池电解质盐的要求。更多还原

【Abstract】 Using hexafluorophosphoric acid as raw material, LiPF₆ was prepared through meridian synthetic reaction,Li-ion exchange reaction and concentrated sulfuric acid reaction. When the salt concentration is 1.0 mol/L, the electrical conductivity of LiPF₆ in ethylene carbonate is 7.53 mS/cm. Under the circumstances of optimal concentration of lithium salt, solvent and optimal ratio,the electrical conductivity of the mixed LiPF₆ with different organic solvent electrolyte was mensurated. The result shows that the electrical conductivity of the prepared LiPF₆ is very high, and its quality meets the requirement of the electrolyte salt in lithium-ion battery.更多还原