To ensure the high safety and consistency of lithium-ion batteries, production must be carried out in a highly clean workshop environment, with strict control of dust particles in the air. This job is a dynamic management system that runs through the entire process.

The core workflow includes the following steps:

Environmental design and basic guarantee: The workshop adopts a closed design as a whole, and the air is continuously purified by primary, medium, and high-efficiency three-stage filters (HEPA) to maintain the cleanliness of key process areas (such as coating, winding, and assembly) at the level of tens of thousands or even thousands of standards. Maintain a slight positive pressure indoors to prevent external polluted air from entering.

Personnel and material purification process: All personnel must undergo strict air shower and wear dust-free clothing, masks, gloves, etc. before entering. All raw materials, fixtures, and other materials must be cleaned through the cargo shower or transfer window before they can be transferred, minimizing the introduction of particles by humans.

Continuous monitoring and cleaning maintenance: Use an online particle counter to monitor the air in the clean area in real time and conduct regular settling bacteria testing. All equipment surfaces, floors, and walls are made of non shedding materials and maintained in cleanliness through regular wiping, vacuum cleaning, and other cleaning methods. For processes that generate dust, such as slitting and laser welding, an independent negative pressure suction device is installed to capture and remove particles from the source.

The core value of this system lies in the complete elimination of the risk of foreign objects such as metal dust and fibers falling into the battery cell through hardware isolation, process control, and real-time monitoring. This is the most fundamental and crucial prerequisite for preventing battery micro short circuits, ensuring high yield and long cycle life.