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Ultrasonic Dispersion Of Alumina

Ultrasonic Dispersion Of Alumina


In order to improve the safety performance of lithium batteries, the selection of separator materials for lithium batteries is very important. At present, the most commonly used inorganic ceramic coating is the inorganic ceramic coating slurry. The main material of the slurry is alumina particles. Large particles are not easy to stabilize in the slurry and are easy to settle and agglomerate. Stability is critical.


Why choose alumina for the separator material of lithium battery?


Commonly used diaphragm materials can be divided into organic resin coatings, metal and alloy coatings and ceramic coatings. Alumina (Al2O3) is one of the most commonly used ceramic coating materials and has quite good properties - such as biocompatibility , wear resistance, good thermal stability, high mechanical strength, high light transmittance, corrosion resistance, etc., it maintains the advantages of high temperature resistance, wear resistance and corrosion resistance of traditional ceramic materials, while maintaining the structural strength of the matrix material, Since the thickness of the ceramic coating is usually within one millimeter, the negative weight of the part is greatly reduced, and its thermal shock resistance is better than that of solid ceramic.


What is the role of ultrasound in dispersing alumina?


The particle size of alumina in coating applications restricts the quality of the product. Refinement by a grinder alone cannot meet the needs of enterprises. Ultrasonic dispersion ultrasonic technology, as a physical means and tool, can be produced in the medium of chemical reaction. Under a series of close conditions, energy can not only stimulate or promote many chemical reactions, speed up chemical reactions, but also change the direction of some chemical reactions, which can make the alumina particles reach about 1200 mesh.

Pub Time : 2022-04-30 21:08:59 >> News list
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