本文采用动电位法研究了Ph2+-SiF2-_6体系电冶铅的阴极电化学过程，揭示了它的电化学反应机理，并根据实验结果提出了获得高质量铅粉末的工艺参数． In this paper, electrocatalytic oxidation was used to study the cathode electrochemistry of Ph2 + -SiF2-_6 system. The electrochemical reaction mechanism was revealed. The technological parameters of high quality lead powder were proposed based on the experimental results.