Electrical Steel: The heart of an electric motor

Stronger magnetic flux, higher efficiency

Are powerful batteries the most important thing for electric motors in cars? Not quite; a very special material is needed to get the power from the battery onto the road: electrical steel. Electrical steel is a soft magnetic material. In such materials an external magnetic field generates a magnetic flux density that is many times higher than would be the case in air. In simple terms, the magnetic field is strengthened by the soft magnetic materials. Flux density is key to the torque of an electric motor.