Pouch cell battery design revolutionised

ENNOVI has launched the ENNOVI-CellConnect-Pouch. Designed for the battery manufacturers favouring the pouch cell form factor, the new cell contacting system prioritises cost-effectiveness with its FDC technologies, faster manufacturing cycle time, and aids the quick release of gasses produced during a thermal event.

"With the ENNOVI-CellConnect-Pouch cell contacting system we offer battery manufacturers a total vertically integrated production solution enabling us to produce a part at a lower cycle time using hot lamination," says Gustavo Cibrian, product manager, ENNOVI. "The system's design removes the need for traditional plastic cell carriers, made out of glass-reinforced plastic, and eliminates the carrier storage and moulding lines, and heat staking process."

The company's advanced lamination technology ensures the structural integrity and durability of the battery pack. Utilising flexible die-cut circuit (FDC) technology for the low voltage signal traces, instead of a conventional FPC, lowers production time and costs while minimising environmental impact.

The upper dielectric layer includes the FDC copper traces, while the lower layer is pre-cut to the shape of the current collectors. Both layers are made of automotive-grade PI or PET material with good electrical insulation and temperature stability properties. The two layers are laminated with all built-in fuse traces or surface mount fuses, and NTC temperature sensors are layered in between, streamlining material usage and forming a thin design. The overall design also helps mitigate battery thermal runaway by accomplishing a fast exhaust release time.