【摘要】 以LiCl为原料，N,N-二甲基甲酰胺（DMF）为溶剂，直接室温电沉积制备金属锂。研究了二元DMF-LiCl体系的基础物化性质，计算得到了不同LiCl浓度下体系的电导活化能和黏流活化能。采用循环伏安法研究了不同LiCl浓度电解质体系的电化学特性，得出金属锂的氧化还原电位（2.5 V和-2.9 V,vs.Ag/Ag⁺）和沉积锂最优LiCl浓度（0.7 mol/L）,最优LiCl浓度下锂离子扩散系数为2.6×10^-8 cm²/s。采用恒电位沉积，在高纯锡阴极上成功获得锂镀层内部晶粒较为致密的金属锂沉积物，镀层主要含金属锂及Li-Sn合金。更多还原

【Abstract】 Li was prepared by direct electrodeposition with N,N-dimethylformamide（DMF）as solvent and LiCl as raw material.The basic physicochemical properties of the binary DMF-LiCl system were studied, and the conductivity activation energy and viscous flow activation energy at different LiCl concentrations were calculated; The electrochemical characteristics of electrolyte systems with different LiCl concentrations were studied by cyclic voltammetry.The redox potential of Li（2.5 V and-2.9 V,vs.Ag/Ag⁺）and the optimal LiCl concentration（0.7 mol/L）were obtained; The lithium ions diffusion coefficient is calculated to be 2.6×10^-8 cm²/s at the LiCl concentration of 0.7 mol/L.Using constant potential deposition, the metal lithium deposit with relatively dense grains in the lithium coating was successfully obtained on the high-purity tin cathode.The coating mainly contained metal lithium and Li-Sn alloy.更多还原