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Dust Control Plan for Lithium Batteries

The production process of lithium batteries in the new energy industry mainly includes stirring and slurry mixing, coating, rolling, cutting and die-cutting, stacking or winding, assembly, injection, sealing welding, packaging, etc.

There is a significant amount of dust or smoke generated during stirring and slurry mixing, cutting and die-cutting, winding or stacking, as well as sealing and welding, requiring reasonable and scientific dust collection.

In the production process of lithium batteries in the new energy industry, various dust and smoke are generated. If not handled in a timely manner, it will affect the quality of lithium batteries, damage processing equipment, and pose a threat to the health and safety of employees. Therefore, dust removal is needed for each process in the lithium battery manufacturing process to ensure the environmental quality of the production process.

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The Dust Control Solutions in the Lithium Battery Manufacturing Process

In the new energy industry, what are the various dust control solutions for lithium batteries. Below, we will briefly introduce the dust control solutions for several process steps:

1. Trimming and Cutting

After rolling, aluminum foil is cut according to the required size for battery production, with careful control to prevent the generation of burrs. This is done to avoid burrs piercing the separator, creating serious safety hazards.

The dust or chips generated during cutting must be promptly removed using a dust extraction device. Due to the explosive potential of dust, an explosion-proof dust collector is required. For chips, it is necessary to increase the negative pressure of the dust collector.

2. Mixing and Slurrying

Solid battery materials for positive and negative electrodes are mixed uniformly and then added to a solvent to form a slurry. The slurry mixing is the starting point of the preceding process and serves as the prelude foundation for subsequent processes like coating and rolling.

Strict control of dust in this step is essential to prevent dust from affecting battery consistency. The environmental requirements for this production phase are comparable to pharmaceutical-grade standards. Typically, a dust collector is used in this process.

3. Sealing and Welding

This step involves welding and sealing the battery after injection. Since laser welding produces smoke and dust, an automatic welding smoke purifier is required.

4. Rolling or Stacking

Depending on the type of battery being produced, there are two processes in this step: rolling or stacking. Regardless of the process, no foreign particles or dust are allowed to adhere to the material surface. Therefore, this step requires the use of a high-negative-pressure vacuum dust collector.

Lithium Battery Industry Dust Control

1. Dust Removal System for Thermal Furnaces in Lithium Battery Material Processing

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2. Dust Removal for Mixing and Stirring Operations in Battery Material Processing

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3. Dust Removal for Pole Stripping, Sheet Manufacturing, Cross-cutting, and Cell Winding or Stacking

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4. Dust Control for Cell Encapsulation, Laser Welding, Cleaning, and Marking Operations

Dust Control Plan for Lithium Batteries

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