Electric motors – how powercore® drives the electric car
Highly efficient and low loss: electrical steel from thyssenkrupp Steel is the automotive material of the future
© Photos: thyssenkrupp Steel
Electrical steel used to make electrical drive motors especially efficient plays a vital role in the selectrify® initiative. This is where thyssenkrupp Steel bundles its electromobility research and development activities. Affordable, lightweight vehicle structure solutions and highly stable safety battery housing make up further aspects of the initiative. All of these demonstrate the enormous potential of innovative steel solutions for vehicles with electric drives.
Electrical drive systems thanks to powercore®
Another product from the selectrify® portfolio is used in the motor of an electric vehicle: its trade mark powercore® electrical steel. “Electrified drive systems demand a lot from steel as a material,” says Volker Kamen, who is responsible for the sales of the non-grain-oriented electrical steel produced at the thyssenkrupp Steel location in Bochum.
In principle, it is built into each and every electric motor. powercore® NO grades meet the demands of high-performing and efficient drive systems. They are very thin, have homogenous mechanical properties, low remagnetization losses, and high polarization. “We are also developing functional coatings for an economically efficient packet structure for automotive manufacturers, plus sandwich materials with a great deal of potential for improving productivity in the stamping process, and better noise generation management in the drive,” says Kamen.
No electromobility without steel
Electrical steel is the core material for every electric car. The special steels channel the magnetic flow and form the basis for every electric motor. Nothing runs without them. Electrical steel has a decisive impact on the motor’s efficiency in terms of its stators and rotors: the more it minimizes the remagnetization losses in the motor, the more efficient the motor is – increasing the vehicle’s range in the process.
thyssenkrupp is Europe’s leading manufacturer of electrical steel and produces grades that satisfy the high requirements of electromobility particularly well: remagnetization losses are already nearly 30 percent less than those caused by conventional grades, while the high-tech material’s tremendous strength makes the highest speeds possible in the tightest of spaces. The result: steel ensures the road to the future of electromobility is an exciting one.
Electrical steel: more than just mobility
Electromobility is one way of lowering CO2 emissions in the long term. However, simply developing and building electrically driven vehicles doesn’t mean the job is done. In order for Germany to actually be able to implement the energy transition in the future, the country’s electricity must come from renewable energies – and not just for electric cars.
The electricity must be distributed intelligently and storage capacity must be created to utilize it. Electrical steel is vital not just in electric motors, but in every generator and transformer, too. This is because it is required to bundle the magnetic flows present in electric machines.
powercore® electrical steel in charging columns
Ultimately, the number of charging stations along with the entire charging infrastructure need to be expanded on a massive scale. thyssenkrupp’s steel business also has the right high-tech materials and intelligent solutions to do this in its powercore® portfolio.
There is no electromobility without steel. So, everything is pointing towards the most important material in automotive manufacturing’s past and present as continuing to be the most important in its future, too.