As a new generation of high-performance batteries, the all-solid-state battery industry is still in its infancy.

​​According to different electrolytes, lithium-ion batteries can be divided into three types: all-solid-state batteries, liquid batteries, and hybrid solid-liquid batteries. All-solid-state batteries, also known as all-solid batteries and all-solid electrolyte batteries, refer to lithium-ion batteries whose cells are made of solid electrolyte materials and solid electrodes. Compared with electrolyte batteries, all-solid-state batteries have the advantages of large output power, large storage capacity, and good safety.

Solid electrolytes are key materials for all-solid-state batteries, including oxide solid electrolytes, sulfide crystalline solid electrolytes, glass ceramic solid electrolytes, LiPON electrolytes, polymer solid electrolytes, and oxide crystalline solid electrolytes. Polymer solid electrolytes are mainly made of lithium salts and polymer matrices. They have the advantages of good mechanical properties and lightweight. Currently, common polymer matrices include polyvinylidene chloride, polyethylene oxide, polypropylene oxide, and polymethylmethacrylate. Methyl acrylate, etc.

The all-solid-state battery industry has high technical barriers, and the solid electrolyte film-forming process is a key part of its production, including gas phase method, wet method and dry method. Vapor phase methods include electrochemical vapor deposition, physical vapor deposition, vacuum sputtering gas phase, etc. This method has high production costs and is mostly used to prepare high-end all-solid-state batteries; wet processes include positive electrode support film formation and skeleton support film formation. As well as mold support film formation, the wet method has high technology maturity and is suitable for large-scale production, but it is easy to cause environmental pollution; the dry method has the advantages of low production cost, environmental protection, and good product performance, and is expected to become the mainstream film-forming process for solid electrolytes.

According to the “2022-2027 China All-Solid-State Battery Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center, As a new generation of high-performance batteries, all-solid-state batteries are expected to be widely used in consumer electronics, new energy vehicles and other fields. In recent years, with the deepening of environmental protection concepts, the prosperity of the new energy automobile industry has continued to increase. Compared with fuel vehicles, new energy vehicles have a higher safety factor, with a fire rate of less than 1 in 10,000. All-solid-state batteries have the advantages of short charging time, large battery capacity, and high safety factor. With continuous breakthroughs in production and research and development technology, they are expected to replace traditional lithium batteries and become the mainstream product in the new energy vehicle power battery market.

At present, the all-solid-state battery industry is still in the early stages of commercial application, and my country has not yet achieved large-scale production. Fuxin Del Auto Parts Co., Ltd. and Jiangsu Zhongtian Technology Co., Ltd. are the main all-solid-state battery manufacturers in my country. Among them, Del Co., Ltd. has completed the research and development of all-solid-state battery safety performance and ranks as the industry leader. Industry analysts said that as my country’s local enterprises’ R&D and production technologies gradually mature, the all-solid-state battery industry will develop rapidly. Its market penetration is expected to further increase.