Iron removing

The process of puncturing the gas pouch of a pouch cell after the formation process, extracting the gas generated inside the pouch during the formation process, and then sealing it.

The process of removing moisture from the bare cell by controlling the equipment's heating rate, temperature, vacuum level, and duration to ensure that the water content in the cell meets the design requirements.

The process of controlling the amount and injection time of liquid electrolyte to inject it into the battery through the injection port. The main purpose is to create ion channels, ensuring that there are enough lithium ions for reversible cycling between the positive and negative electrode sheets during the charge and discharge process. The injection process can be divided into hard shell injection and soft pack injection.

The process of compacting and shaping the electrode assembly by applying appropriate time and pressure, controlling the thickness of the electrode assembly, and securing the shape of the loosely wound electrode assembly to prevent relative movement of the positive and negative electrode sheets.

The process of fully sealing the battery cell by either applying adhesive and curing it with steel ball dispensing at the injection port or using high-energy lasers to melt the cover plate and the sealing gasket together.

The process of applying termination tape on the surface of the lithium-ion battery core along the winding axis direction of the battery core.