Lithium-ion battery separator is widely used in 3C electronic equipment and new energy power vehicles. The battery diaphragm is an important part of lithium-ion batteries, which directly separates the positive and negative poles in structure and prevents battery short circuit.

At present, alumina and boehmite are widely used for coating the surface of lithium-ion battery diaphragm. When the current is too large, the material temperature increases, and the volume of coating materials such as alumina expands, the current conduction hole on the lithium-ion diaphragm can be closed to block the current and prevent short circuit.

Rare earth polishing materials are mainly used for polishing glass and other silicate workpieces, belonging to chemical mechanical polishing, especially for glass surface polishing, which can meet the requirements of glass surface treatment in various industries.

Alumina polishing material is a traditional polishing material, which is widely used. Its Mohs hardness is 9. It can be used for the surface treatment of all kinds of crystals, metals and ceramics. Silicon oxide polishing material is mainly used for silicon wafer semiconductor polishing, which belongs to chemical mechanical polishing.

Industrial exhaust and automobile exhaust emissions threaten human environment and health. Excessive harmful gases in the air will greatly reduce human immunity and increase the probability of virus infection.

Because of its unique 4F outer electronic structure, rare earth elements have catalytic activity, and can also be used as additives or cocatalyst to improve the catalytic performance of the catalysts, especially the anti-aging and anti poisoning properties. Rare earth catalysts are widely used in automobile exhaust purification, industrial exhaust purification, indoor living environment purification, catalytic combustion and catalytic sulfide fission in oil refining industry.

Silica gel has the characteristics of strong adsorption, rapid and effective adsorption of water in sealed packaging, stable chemical properties, non-toxic and harmless. It is widely used in all walks of life, aerospace, electronic appliances, automobile, building sealing, medical instruments, baby products, kitchen appliances, etc. The temperature resistance of conventional high-temperature silicone rubber is 200-250 ℃, which limits its application field. By adding rare earth elements, it can effectively prevent the oxidative crosslinking of side chain and the cyclic depolymerization of main chain, improve the thermal oxidation stability of silicone rubber side group, improve the temperature resistance of silicone rubber to about 290-300 ℃, withstand the temperature of 350 ℃ in a short time, and maintain the softness and stability of silicone rubber There was no significant change in springback, surface hardness and mechanical properties.

In the 5G era, the traditional metal cavity filter can not achieve the system compatibility problem of high suppression, while the ceramic dielectric cavity can solve these problems. The microwave dielectric ceramic wave is an important solution for 5g and even 6G in the future. Microwave dielectric ceramics refer to ceramic materials used in microwave band circuits as dielectric materials and complete one or more functions.

As a new electronic material, it is widely used in many fields of microwave technology, such as mobile phone, car phone, TV satellite receiver, satellite broadcasting, radar, radio remote control and so on.