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Environment Process In the mixing process area, the facility conducts metering and mixing of cathode activation and anode activation (electrolyte process) products, carbon, graphite, and other powder products are mixed into a slurry using n-methyl pyrrolidone (NMP) as the solvent ingredient for the cathode, and deionized water as a solvent for the anode. In the electrode process area, the coating and drying process is performed, which includes applying the slurry from the mixing process onto aluminum and/or copper foil and drying the foil strip through a dryer using a heat exchanger. During this process, NMP is captured through a solvent-recovery system. In the assembly process area, the cathode and anode are then laminated, stacked on an aluminum sheet, and folded. An electrolyte liquid is injected into the folded product under vacuum pressure, and aluminum and/or copper tabs are laser-welded to the cells. In the formation process area and following the application of the tabs, the cells are placed in storage for aging to stabilize the electrolyte into the cell, and formation is achieved by charging and discharging equipment. Prior to final packaging and placement in the storage process area, degassing is conducted by piercing the cell, extracting residual gas under vacuum pressure, and resealing.
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