The Study on the Development of New Types of Lithium Battery Electrolyte Solution with Highly Lipophilic Fluorinated Organic Lithium Salts

这是开发新型高功率、高能量密度锂电池的基础性研究。为了对含氟有机锂盐锂电池电解质进行分子设计，并对电解质的电池性能进行评价，以供实际应用，本论文在两年内完成了以下工作：1.合成了以下不同链长和结构的多氟有机阴离子锂盐锂电池电解质：多氟烷基磺酰基取代的酰胺，多氟烷基磺酰基取代的甲烷化物，多氟烷基3.用分子轨道方法计算了四苯基硼酸锂盐的电导率，并讨论了它们的结构对电导率的影响通过计算前线轨道HOMO能级、体积、亲脂性和离子半径，研究了锂盐的稳定性和导电性与多氟有机阴离子的立体电子性质之间的关系。4.对不同电解质锂电池性能的评价正在进行中。

This is a fundamental research to develope the new types of lithium batteries with high power and energy density. For molecular designing of fluorinated organic lithium salts as lithium battery electrolytes and for evaluating the battery properties of the electrolytes for practical utilization, the following works were done in two years.1.Synthetic procedures for the following lithium salts of polyfluorinated organic anions with different chain lengths and structures for electrolytes for lithium battery were developed : polyfluoroalkylsulfonyl-substituted amides, polyfluoroalkylsulfonyl-substituted methanides, polyfluoroalkyl-substituted tetraphenylborates.2.The effect of the structure of counter anions on the conductivity of the lithium salts wass experimentally investigated.3.Molecular orbital method calculations on the frontier orbital HOMO energy levels, bulkiness, lipophilicity, and ionic radii of the counter anions were done to investigate the relashionship between the stability and conductivity of the lithium salts and the stereoelectronic charactors of the polyfluorinated organic anions.4.Continuous study to evaluate the speciality of the lithium battery with various electrolytes are under progress.