Silicon carbon negative electrode wrapped equipment cells, solid state batteries are solid-solid contact, and the expansion of material volume during the cycling process of silicon carbon negative electrode wrapped equipment can cause contact damage, resulting in the death of the battery. Therefore, sulfide solid state batteries are measured under pressure, but power batteries cannot be pressurized, so the research direction in theory is now biased. Adding some liquid to make a semi solid state battery is feasible, but its safety will be relatively reduced. How to balance the relationship between safety and cost is crucial. Silicon carbon negative electrode wrapping equipment, as it can indeed improve the energy density of the battery cell while controlling costs