Which carbon anode or solid-state battery is more likely to be used on a large scale within 20 years?

Which one is more likely to be used on a large scale within 20 years, silicon carbon cathode or solid-state battery? Silicon carbon anode is now in use. The most important thing is the silicon content. In order to ensure that 400~600mAh/g can be achieved under the circulatory demand Now batteries after 300Wh/kg will basically use silicon carbon anode. There are many problems with solid-state batteries, the first is the choice of solid electrolyte. Oxidized ceramics of LLZO type must not be used. One is that it cannot be processed on a large scale, and the other is that it has poor physical stability and is fragile. Vulcanized polymer and the general two options now. Personally, it is not a solid polymer electrolyte. Half of it becomes liquid. Due to the high temperature and thermal runaway anode material in a short period of time, the use of polymer is essentially The use of lithium metal for graphite anodes that cannot prevent thermal runaway or limited and polymer mismatches will further increase safety risks. Vulcanization is the most likely choice, but it also faces poor stability, the battery preparation process is chaotic, the compatibility of electrode data is poor, interface stability and many other problems are difficult to solve. Now, it can not be said that it is impossible to solve it, at least low-cost methods It may be completely resolved. The second is the question of funding, which is also the key to determining whether solid-state batteries can be commercialized. At present, the cost of power lithium-ion battery LFP and ternary bom is about 0.5-0.7, plus BMS and cost amortization are generally 0.8-less than 1 can be shipped. The cost of solid-state battery lightweight accounting data is not less than 2. Although security has improved, it does not guarantee 100% security. This is a big question. How many consumers are willing to spend $100,000 to buy a car to choose safer but not necessarily safe solid-state batteries. Finally, there is the issue of cell preparation. The solid-state battery is solid-solid contact. The data volume expansion during the cycle will cause contact damage. The battery is dead, so the sulfide solid-state battery is measured under pressure, but the power lithium-ion battery cannot be pressurized, so the current theoretical research The direction is biased. It is feasible to add a small amount of liquid to make a semi-solid battery, but the safety will be relatively reduced. How to balance the relationship between safety and cost is the key. In fact, as far as the market is concerned, they only need a cost-effective battery, no matter whether the silicon carbon is still strong or not, in order to improve the cost-effective skills of existing power lithium-ion batteries. The hot spots of hype techniques will be very hot in a short time, but it will be cool without consumers paying for a long time. I am personally optimistic about the use of silicon carbon, because it does increase the energy density of the battery under the premise of cost control. Solid-state batteries have too many problems, and the advantages of hype have not been fully tested. They may ultimately resemble fuel-powered batteries, and in some cases, large-scale replacement of liquid-powered lithium-ion batteries may be small. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Cheaper and more abundant potassium ion batteries may become a dark horse