The equipment is used for dry leak detection of the sealing plug (hereinafter referred to as the workpiece) of prismatic aluminum-shell lithium batteries. A robot places the helium-filled workpiece from the customer's upstream process into a vacuum chamber, and the vacuum-chamber method is then applied for helium mass-spectrometer leak detection, by which conforming and non-conforming workpieces are distinguished. The system is designed and manufactured strictly per the customer's requirements, adopting a modular design that fully considers the leak-detection requirements while using standardized modules and components as much as possible, ensuring the system's reliability and maintainability and meeting the manufacturer's specified technical indicators. An independent control system with touchscreen and industrial PC enables data upload and download throughout production; incoming cells are scanned on arrival and production information is bound to the cell QR code and uploaded to the customer's MES system, so that each battery's information is traceable by its barcode thereafter. The equipment was designed with a reserved MES interface function.

Figure: NEV Battery Helium Leak-Test Equipment — Layout / Equipment Schematic