China's new energy vehicle companies are introducing silicon carbide (SiC) technology, and after BYD, NIO is set to become the second local company to use this technology.
On June 22, NIO announced that the first C prototype of the SiC electric drive system has been rolled off the production line, which is a batch prototype for process and production test verification.
As a product of NIO's second-generation electric drive platform, the SiC electric drive system is more efficient, compact, and lightweight.
After the mass production of the technology, it will be equipped with NIO's first sedan, the ET7, to provide a longer range for the vehicle.
In the field of new energy vehicles, silicon carbide is mainly used in power control units, which can be applied to drive and control inverters for motors, onboard chargers, fast charging piles, and other systems.
At present, mainstream car manufacturers still use IGBT (insulated gate bipolar transistor chip), but Tesla and BYD have started to use Sic MOSFET in the Model 3 and Han EV models.