Since the cost of lithium carbonate materials, the main material used to produce lithium-ion batteries, has fluctuated sharply in year 2021-2022, many companies and research institutions around the world have begun to seek to develop cheaper and economic battery technology. The main material sodium metal and its compounds based on sodium-ion batteries are abundant in the world, and sodium-ion batteries and their materials have become a hot spot of research and development. At present, some companies have launched related sodium-ion battery products, with the more mature materials, it is expected that in 3 years there will be more and more economical sodium battery products available.