Factors affecting the effectiveness of coating machines
Release time:
2023-11-27
After using the coating machine for a long time, some malfunctions may occur, and uneven weight distribution of the positive electrode plate is the most common situation, which can lead to the phenomenon of thick middle and thin sides, seriously affecting production progress. The many factors that affect coating uniformity roughly include: material, viscosity of the slurry, uniformity of the slurry, and uniformity of the substrate thickness; In terms of equipment, the smoothness of the radial circle of the scraper and coating roller, the flatness of the axial direction, and the parallelism of the installation of the scraper and coating roller, etc.
Factors affecting the effectiveness of coating machines
After using the coating machine for a long time, some malfunctions may occur, and uneven weight distribution of the positive electrode plate is the most common situation, which can lead to the phenomenon of thick middle and thin sides, seriously affecting production progress. The many factors that affect coating uniformity roughly include: material, viscosity of the slurry, uniformity of the slurry, and uniformity of the substrate thickness; In terms of equipment, the smoothness of the radial circle of the scraper and coating roller, the flatness of the axial direction, and the parallelism of the installation of the scraper and coating roller, etc.
1. If there are problems with the slurry during the initial batch use of recycled materials, it is necessary to consider whether it is caused by uneven mixing of recycled materials. It is necessary to arrange for the preparation of positive electrode slurry without recycled materials, conduct coating experiments, and check the results.
2. Measure the substrate aluminum foil used, with a uniform thickness.
3. Equipment, coating machine is the most expensive and complex equipment in battery production, with high requirements for processing accuracy and assembly accuracy of each component. General engineering personnel need years of exploration and experience to operate independently.
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