Introduction to the working principle and difficulties of wet diaphragm production equipment
DATE：2023/7/13 14:25:40 / READ： / SOURCE：This station
The wet separator production equipment is a key equipment used for manufacturing battery separators, and it plays an important role in the battery manufacturing process. Wet diaphragm production equipment has been monopolized by foreign enterprises for many years, but with the continuous research and improvement of wet diaphragm technology in China, some domestic enterprises have also mastered the key technologies of wet diaphragm production and have started to expand the production of wet diaphragm production equipment.
1. Working principle of wet diaphragm production equipment:
Material preparation:
The first step of wet diaphragm production equipment is material preparation. At this stage, polymer materials, solvents, additives, etc. need to be prepared. These materials will be fed into a mixing tank and uniformly mixed through a stirring system to form a solution.
Coating:
The mixed solution will be transported to the coating machine for coating. The coating machine is usually composed of a coating head, a coating roller, and a control system. During the coating process, the solution will be evenly applied to the specially made substrate through the coating head, forming a moist film. The rotation speed of the coating roller and the movement speed of the coating head can control the thickness of the film.
Curing:
After coating, the wet film needs to be cured to transform into a stable membrane structure. The curing process usually includes two steps: drying and heat treatment. Firstly, the wet film will be dried using a drying device to remove solvents and moisture. Then, the film will enter the heat treatment equipment and undergo thermal curing under certain temperature and time conditions to form a stable structure.
Inspection and cutting:
The cured membrane will enter the testing phase. This stage is mainly used for testing and evaluating the quality of the diaphragm. Common detection methods include measuring film thickness, porosity, pore size, etc. Through these tests, it can be ensured that the manufactured diaphragm meets the specification requirements. Subsequently, the diaphragm that meets the requirements will be fed into the cutting equipment for cutting and winding to meet the needs of products of different sizes and shapes.
Packaging and quality inspection:
The final step is the packaging and quality inspection of the diaphragm. Packaging usually involves winding the diaphragm into a roll shape and appropriately packaging and labeling it. The quality inspection process will conduct comprehensive quality testing on the diaphragm to ensure that the product meets the standards and specifications. This includes visual inspection, dimensional measurement, physical performance testing, etc.
2. Work difficulties of wet diaphragm production equipment:
a. Material uniformity: Ensure uniform mixing and coating of the solution to avoid uneven areas in the diaphragm.
b. Curing control: Control the temperature, humidity, and time during the drying and curing process to ensure that the membrane does not produce defects during the curing process.
c. Film thickness control: ensure that the thickness of the coated film meets the requirements to meet the Design specification of the battery.
d. Quality inspection: Implement strict quality inspection to eliminate possible defects in the manufactured diaphragm.
3. The use value of wet diaphragm production equipment:
a. Efficient production: Wet diaphragm production equipment can achieve efficient production processes, improve production efficiency and capacity.
b. High quality separator: Through precise process control and quality testing, wet separator production equipment can produce high-quality and consistent battery separators.
c. Stability and reliability: The process of wet diaphragm production equipment is stable, which can ensure the production of diaphragms that meet the specifications and improve the stability and reliability of batteries.
d. High degree of automation: modern wet diaphragm production equipment usually has an automatic control system, which can realize automatic production and reduce manual operation and Personal equation.
By introducing the working principle, difficulties, and value of wet diaphragm production equipment, you can better understand the importance and role of wet diaphragm production equipment in battery manufacturing. If you have any further questions or need more detailed information, please feel free to let me know.
1. Working principle of wet diaphragm production equipment:
Material preparation:
The first step of wet diaphragm production equipment is material preparation. At this stage, polymer materials, solvents, additives, etc. need to be prepared. These materials will be fed into a mixing tank and uniformly mixed through a stirring system to form a solution.
Coating:
The mixed solution will be transported to the coating machine for coating. The coating machine is usually composed of a coating head, a coating roller, and a control system. During the coating process, the solution will be evenly applied to the specially made substrate through the coating head, forming a moist film. The rotation speed of the coating roller and the movement speed of the coating head can control the thickness of the film.
Curing:
After coating, the wet film needs to be cured to transform into a stable membrane structure. The curing process usually includes two steps: drying and heat treatment. Firstly, the wet film will be dried using a drying device to remove solvents and moisture. Then, the film will enter the heat treatment equipment and undergo thermal curing under certain temperature and time conditions to form a stable structure.
Inspection and cutting:
The cured membrane will enter the testing phase. This stage is mainly used for testing and evaluating the quality of the diaphragm. Common detection methods include measuring film thickness, porosity, pore size, etc. Through these tests, it can be ensured that the manufactured diaphragm meets the specification requirements. Subsequently, the diaphragm that meets the requirements will be fed into the cutting equipment for cutting and winding to meet the needs of products of different sizes and shapes.
Packaging and quality inspection:
The final step is the packaging and quality inspection of the diaphragm. Packaging usually involves winding the diaphragm into a roll shape and appropriately packaging and labeling it. The quality inspection process will conduct comprehensive quality testing on the diaphragm to ensure that the product meets the standards and specifications. This includes visual inspection, dimensional measurement, physical performance testing, etc.
2. Work difficulties of wet diaphragm production equipment:
a. Material uniformity: Ensure uniform mixing and coating of the solution to avoid uneven areas in the diaphragm.
b. Curing control: Control the temperature, humidity, and time during the drying and curing process to ensure that the membrane does not produce defects during the curing process.
c. Film thickness control: ensure that the thickness of the coated film meets the requirements to meet the Design specification of the battery.
d. Quality inspection: Implement strict quality inspection to eliminate possible defects in the manufactured diaphragm.
3. The use value of wet diaphragm production equipment:
a. Efficient production: Wet diaphragm production equipment can achieve efficient production processes, improve production efficiency and capacity.
b. High quality separator: Through precise process control and quality testing, wet separator production equipment can produce high-quality and consistent battery separators.
c. Stability and reliability: The process of wet diaphragm production equipment is stable, which can ensure the production of diaphragms that meet the specifications and improve the stability and reliability of batteries.
d. High degree of automation: modern wet diaphragm production equipment usually has an automatic control system, which can realize automatic production and reduce manual operation and Personal equation.
By introducing the working principle, difficulties, and value of wet diaphragm production equipment, you can better understand the importance and role of wet diaphragm production equipment in battery manufacturing. If you have any further questions or need more detailed information, please feel free to let me know.
Author：admin