After the coater is used for a period of time, there will be some failures, which is also the most common situation that the weight distribution of the positive plate is uneven, which will lead to the phenomenon of thick in the middle and thin on both sides, seriously affecting the production schedule. Let's take a look at the specific content.
Many factors affecting coating uniformity. Generally includes: material, slurry viscosity, slurry uniformity, matrix thickness uniformity; In terms of equipment, the smoothness of the radial circle of the scraper and the coating roller, the smoothness of the axial direction, the parallelism of the scraper and the coating roller installation, and so on.
1, slurry, if the problem occurs when the formal batch use of recycled materials has just begun, it is necessary to consider whether it is caused by uneven mixing of recycled materials. It is necessary to arrange to reformulate the positive slurry without recycled material for the coating experiment
2. The base aluminum foil used for measurement has uniform thickness.
3. Equipment, tape coating machine is the most expensive and complex equipment in battery production equipment, and the processing accuracy and assembly accuracy of each component are very high. The average engineer needs years of exploration and experience to be able to operate independently.
The above content is about the factors that will affect the effect of the coater. I hope that you can have more understanding of this content through the introduction of this article.
