The material inside the silicon carbon negative electrode coating was first discovered. However, due to its safety issues, graphite was added to stabilize the negative electrode. The current problem is that the energy crisis and environmental pollution require the vigorous development of new energy vehicles. However, lithium batteries with graphite as the negative electrode are not sufficient in energy. In order to reduce the cost of new energy vehicles and increase their range, research has shifted back to metal lithium negative electrodes Although there have been some technological advancements, metal lithium negative electrodes still cannot be applied in practice. However, the development of technology cannot keep up with the huge demand in the current market. So what should we do? Improve the original graphite negative electrode - research has proven that the carbon homologous element - silicon has a huge theoretical specific capacity
The carbon material present in the silicon carbon negative electrode coating equipment can effectively improve its conductivity, and its volume will also change accordingly to avoid agglomeration of silicon particles. Reasonable design of the structure of the silicon carbon material can better suppress the volume change of the material, such as designing the silicon carbon material into a core-shell structure, porous structure, etc., to reserve accommodating or buffering space for volume expansion