Properties of silicon nanoparticles prepared by pulse discharge and ball milling

, and the coulombic efficiency is 83.1%. After 100 cycles, the capacity retention rate is 14.2%, while the capacity retention rate of Si-15 h is 41.5%, which greatly improves the cycle life. The preparation method of silicon nanoparticles proposed in this paper is simple and effective, shortens the preparation time, and obtains silicon nanoparticles with a high degree of amorphization, which can provide a new method for the preparation of silicon nanoparticles.