Patterned Flat Cable

An image showing the usage and location of Doosan’s Patterned Flat Cable (PFC) in an electric vehicle. The PFC is the copper-colored parts in the image and connects all the batteries together.
An image showing the usage and location of Doosan’s Patterned Flat Cable (PFC) in an electric vehicle. The PFC is the copper-colored parts in the image and connects all the batteries together.

Doosan Corporation announced on July 31 that it has collected approximately 500 billion won in accumulated orders from Japan, Europe, and North America for its new electric vehicle material, Patterned Flat Cable (PFC).

PFC is a material that connects cells, the smallest unit of electric vehicle batteries, and is made by applying insulating film and coating treatment to a flexible copper-clad laminate (FCCL), which forms the circuit.

PFC is an integral part of components such as a fuse that manages the device in case of overcurrent and a thermistor that detects changes in the circuit’s temperature. In addition, it has a built-in Battery Management System (BMS) that is usually installed in a separate space of the vehicle.

Compared to wiring harnesses (copper wires) used in doors, seats, and roof cables, PFC reduces weight and volume by more than 80%, lightening the vehicle, reducing costs, and increasing driving distance. Moreover, Doosan’s PFC is the first in the world to develop and apply a roll-to-roll manufacturing method, which can accommodate electric vehicle lengths of up to 3 meters.

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