There are many processes for coating membranes, and there are also many requirements. For example, the porosity of the membrane used for coating should be appropriately high, the air permeability should be appropriately low, and it should also be compatible with the system of the battery factory. Overall, membrane coating is a systematic project that requires membrane manufacturers to develop corresponding substrates separately and then process them. The direct coating effect of membranes commonly used is not ideal. At present, there are two processes for lithium battery separators: dry and wet processes, with dry processes further divided into single pull and double pull. Generally speaking, dry process separators have the characteristics of low cost, low pollution, and more uniform pores due to their simple process and relatively small fixed asset investment. In high-power batteries, wet process separators have more advantages, mainly in terms of safety and thermal shrinkage.

The GRS2000 wet coating diaphragm slurry disperser is mainly composed of two layers of dispersing heads. During operation, the material enters the dispersing chamber through the feeding port and first reaches the layer dispersing head for processing. Due to the high-speed operation of the rotor teeth by the motor, eddy currents and centrifugal force effects are generated, causing the material to be sucked into the dispersing head axially. Then, it is pressed out at high speed along the gap between the stator and rotor to complete the secondary shearing action. Afterwards, the material is strongly torn in the strong shearing gap between the rotor teeth and the stator teeth and flows out from the gap of the stator teeth to complete the second shearing action. Then, the flowing material enters the second layer dispersing head chamber and is sheared again (the principle is the same as above) to ensure that the mixed dispersion obtains a narrow particle size distribution and a smaller particle size. Droplets and particles generate a mixture with better stability, Meet the particle size requirements for vaccine production.

Scope of application

Electronic batteries: lithium battery positive electrode slurry, lithium battery negative electrode slurry, circuit board substrate slurry

Nanomaterials: depolymerization of ultrafine calcium carbonate, white carbon black and other nano materials, and solid-liquid dispersion of nano powders

Fine chemicals: hot melt adhesive, sealant, glue, flocculant, surfactant

Biopharmaceuticals: ointments, creams, injections, microcapsule emulsions, filler dispersions