What are the advantages of spraying Teflon on lithium battery silos
Information summary:The core advantages of spraying Teflon on lithium battery silos are anti sticking and anti blocking, anti-corrosion and wear-resistant, ensuring material purity, and adapting to the storage and transportation needs of lithium battery positive and negative electrode powders (such as ternary materials and lithium iron phosphate), as follows:
The core advantages of spraying Teflon on lithium battery silos are anti sticking and anti blocking, anti-corrosion and wear-resistant, ensuring material purity, and adapting to the storage and transportation needs of lithium battery positive and negative electrode powders (such as ternary materials and lithium iron phosphate), as follows:
1. Anti sticking to prevent material clumping and blockage of the warehouse
PTFE has a low surface energy and is a typical non stick material. Lithium battery powder (especially ultrafine powder) will not adsorb on the inner wall of the silo. This can avoid material clumping, bridging, or sticking to the warehouse, ensure smooth powder feeding, reduce manual cleaning frequency, and reduce the risk of production interruption caused by warehouse blockage.
2. Anti corrosion and wear-resistant, suitable for harsh working conditions
Some powders of lithium batteries (such as fluorine-containing and lithium containing compounds) have certain corrosiveness, and the flow of powders will cause erosion and wear on the compartment wall. The chemical stability of PTFE coating is extremely strong, which can resist corrosion from various acidic and alkaline media. At the same time, the surface is smooth and has high hardness, which can reduce wear caused by powder erosion, extend the service life of the silo, and reduce equipment maintenance costs.
3. Ensure material purity and improve battery performance
The PTFE coating itself does not release harmful substances and does not undergo chemical reactions with lithium battery powder, which can avoid contamination of materials by warehouse wall materials (such as metals). This can ensure that the purity of the powder is not affected, thereby ensuring the quality stability of subsequent electrode production and battery assembly, and improving the core performance of lithium batteries such as capacity and cycle life.
4. Reduce energy consumption and optimize production efficiency
The low friction coefficient of the coating significantly reduces the flow resistance of the powder, eliminating the need for additional auxiliary feeding devices such as vibration and air blowing, and reducing production energy consumption. At the same time, a smooth cutting process can ensure control of the feeding amount, avoid material waste, and improve overall production efficiency.