Lithium -ion battery electrode slurry is the beginning of the battery and the most important production process. The electrode slurry is composed of a variety of raw materials of a variety of different gravity and different particle size, and it is mixed with solid fluid phase. The pulp formed is a non -Newtonian fluid. Lithium -ion battery slurry can be divided into two types: positive pole slurry and negative pole slurry. Due to the different system (oily and water properties) of the slurry, the properties must be different.
Lithium -ion battery electrode pulp needs to have stable and appropriate viscosity, which has a vital impact on the coating process of the polar sheet. The problems often occur during our production process are the change of the mucous viscosity, which is too high or too low. It is not conducive to polar coating.
High viscosity slurry is not easy to precipitate and dispersal, but too high viscosity is not conducive to the leveling effect, which is not conducive to coating. It is easy to cause local cracks or even break when subsequent rollers. When the viscosity is low, it is easy to cause the slurry, but it is difficult to dry, reducing the drying efficiency of the coating. If the viscosity is too low, it will also occur in cracking and poor consistency of the grid reunion of the slurry.
The factors that affect the viscosity of the slurry are mainly the temperature and humidity of the environment, the speed of the mixing pulp, the time control, the order of ingredients, etc. Among them, the viscosity of the pulp is greatly affected by the ambient temperature. During the high -speed decentralization of the mixer, the temperature of the slurry in the barrel exceeds 50 ° C, and the cooling treatment needs to be performed.
Usually, freezing water to the positive and negative mixer pulp in the slurry of the pulp in the bucket of the grown of the grown in the barrel, but the disadvantage is that the frozen water temperature is too low and the temperature is large, unstable, and it is necessary to control the frozen circulating water flow by manual adjustment valve. The temperature of the slurry in the slurry barrel fluctuates very large, which directly affects the viscosity of the slurry, and reduces the production efficiency and the consistency of the battery.
The hot and cold allocation temperature machine can well solve the existing lithium -ion battery electrode slurry production process in the production process, and ensure that the water temperature is uniform and stable. The circulating pipeline of the hot and cold all -in -one connects the positive and negative pole mixing pulp barrel, which cools through the water circulation to the positive and negative pole mixing slurry barrel, so that the temperature of the slurry in the pulp in the positive and negative pole mixing pulp can be controlled in the process of constant processing. Within the value, the stability of the slurry viscosity is guaranteed, the effect of reducing the coating of the subsequent film, improving the production efficiency, passing rate, and product quality of the polar tide coating, and reducing working hours.
