Under the background of the rapid development of new energy industry, lithium iron phosphate is one of the mainstream choices of power battery cathode materials. However, the production process of lithium iron phosphate puts forward extremely strict requirements for equipment materials, especially in the transmission of raw materials. The corrosion resistance, wear resistance and high temperature stability of the equipment are directly related to production efficiency and product quality.
Material challenges in the production of lithium iron phosphate
The production process of lithium iron phosphate mainly includes raw material mixing, sintering, pulverization, slurry preparation and so on. In these links, the transfer of raw materials is a crucial step. The slurry and powder of lithium iron phosphate are highly corrosive and wear resistant, and are extremely sensitive to metal materials. When metal materials (such as stainless steel) are in contact with lithium iron phosphate, they are easy to react with the material, resulting in the deactivation of the material, and then affecting the performance and life of the battery. In addition, the production environment of lithium iron phosphate is usually accompanied by high temperature and strong acid and alkali conditions. Traditional metal materials are prone to corrosion and wear in this environment, which not only shortens the service life of the equipment, but also may introduce impurities and pollute the product.
High performance PEEK screw in new energy field
Therefore, finding a kind of equipment material that can meet the requirements of corrosion resistance, wear resistance, high temperature stability and does not react with lithium has become a key technical problem in the production of lithium iron phosphate. In this demand, PEEK materials stand out with their outstanding properties.
High performance PEEK screw in new energy field
Performance advantages of PEEK materials
PEEK is a semi-crystalline thermoplastic special engineering plastic with the following outstanding properties:
● Chemical corrosion resistance: PEEK has strong resistance to most acids, bases, salts and organic solvents, can work stably in a strong corrosive environment for a long time, and will not be degraded by chemical reactions.
● Wear resistance: low friction coefficient of PEEK, excellent wear resistance, especially suitable for powder and slurry transmission, can significantly reduce equipment wear, prolong the service life.
● High temperature stability: PEEK glass transition temperature as high as 143℃, melting point 334℃, can be used at 250℃ for a long time, short-term tolerance to high temperature above 300℃, fully meet the high temperature environment in the production of lithium iron phosphate.
● High mechanical strength: PEEK has excellent tensile strength and creep resistance, which can withstand high load and long-term vibration to ensure the reliability of equipment operation.
High purity: PEEK material itself does not contain metal ions, will not react with lithium, to avoid material pollution and inactivation problems.
● These properties make PEEK an ideal material for the transmission of lithium iron phosphate production equipment, especially in slurry conveying pipes, valves, pumps and powder conveying equipment.
In the context of the rapid development of the new energy industry, PEEK materials are expected to play a more important role in the production equipment of lithium iron phosphate and provide strong support for the high-quality development of the new energy industry.
ZIBO HUIWEN Plastics offers a full range of plastic molding capabilities to efficiently mass-produce parts specializing in injection molding and have served customers in variety of industries such as medical, automotive, packaging, construction, home appliances , and agriculture. The company has two factories which occupy a total area of more than 18,000 square meters, and a total of 102 sets of injection molding machines .
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