With the rapid development of electronic equipment and electric vehicles,which calls for increasingly high demand of lithium-ion battery capacity and energy density. At present, in the commercial lithium-ion battery system, graphite carbon is the general use as a negative material. But the theoretical capacity of graphite is only 372 mAh/g,and it’s rate performance is very poor.So the development of new high-capacity anode materials has become a hotspot. The theoretical specific capacity of silicon is as high as 4200 mAh/g, which is one order of magnitude higher than the specific capacity of graphite negative materials, and its embedded/de-lithium potential is moderate,the electrolyte reactivity is low. Silicon is rich in reserves in the crust,and it’s price is very low,which is an ideal new generation of lithium-ion battery anode material. However, in the process of alloying with lithium, silicon material will produce dramatic volume expansion (> 300%),which will easily lead to the active material in the cycle of rapid powder off. The contact between the electrode active material and the current collector is weakened,which makes the battery cycle life rapidly attenuated. At the same time, due to the volume expansion effect of silicon material, silicon material in the electrolyte can not produce a solid surface of the solid electrolyte membrane(Solid Electrolyte Interface, SEI),resulting in reduced charge and discharge efficiency, accelerated capacity attenuation. In order to solve the problems of silicon-based anode materials, we started from the preparation of materials and electrode assembly in two aspects. On the one hand, we try to composite new silicon-based materials by nano-silicon and carbon, graphene and other composite preparation. On the other hand, the use of electrophoretic deposition technology to assemble the silicon material to form a binder-free porous structure electrode to improve the silicon-based negative performance.