Bus bars ensure efficient current transfer from module to module and need to be designed and manufactured to tight tolerances. SEF has developed expertise in the design and manufacturing of aluminum and copper bus bars and associated fasteners to ensure low contact resistance. Additionally, SEF works with key partners to offer coating options to meet and exceed conductivity and electrical isolation requirements from customers.

In order to ensure cooling and electrical isolation of Li-Ion cells, SEF has developed ultra thin plastic separators (0.7 mm) with excellent dimensional stability, tolerance and flame retardancy requirements. These separators have additional integrated features for locking, cable fixation, terminal assembly and fluid flow management. SEF has precision injection molding capability to provide plastic cell separators for both prismatic metal can cells and pouch cells.

Li-Ion cells need to have the right compression in order to function effectively. SEF has the capability to produce highly engineered end plates for Li-Ion battery modules with 30-50% filler content for strength, dimensional stability & flame retardancy. SEF can add value to end places through assembly of inserts, metal collars and supply of threaded & blind solutions for fastening.

Rapid assembly of a Li-Ion battery module is a key challenge in the assembly of EV battery packs. SEF has capabilities to assemble thin-walled plastic components with inter-cell busbars and snap fit arrangement for cable management offering an integrated multi material solution for rapid fixation / assembly of a battery module.

SEF has developed high strength cable tie solutions to ensure high and low voltage harness are properly secured in an electric vehicles. These heat resistant cable tie solutions developed with engineering plastic can accommodate strength and flame retardancy requirements demanded by these applications.

SEF has extended its capabilities in the cable routing segment to offer innovative solutions to route high voltage electrical and coolant cables in electric vehicles.

STANLEY Engineered Fastening vent plugs provide dependable pressure regulation and evacuation in case of emergency. With a light weight, robust structure, SEF vent plugs are easy to install with single-sided, clip-in or bayonet style locking, and designed for multiple uses following a pressure incident.

Prismatic metal can Li Ion cells are a complex assembly of Top cover plate, engineered plastic isolators, vents, inner & outer terminals. As a multi-technology solutions provider we are able to manufacture and precisely assemble components for a Li Ion cell to create one integrated assembly. With our broad range of technologies in metals and plastics, we are ideally positioned to act as an engineering partner for such high volume complex assemblies.

SEF has state of the art assembly technologies and products to help optimize assembly of the battery tray used to house Li-Ion cells in an electric vehicles. Our no-hole technology for fastening provides the necessary strength the battery tray structure requires without weakening the assembly or creating paths for moisture ingress. We can provide solutions for highly automated assembly of mixed materials to fulfill most application needs.