In brief: When it comes to the range of an electric car, battery capacity is not the only determining factor, but also the efficiency of the power electronics. That is because it is responsible for the entire energy management. Today’s power electronics contain semiconductors made of pure silicon. Though they already achieve a high level of efficiency, there are also disadvantages in the design height and internal resistance. The higher the voltage that powers the electric motor, the greater this disadvantage becomes. ZF is therefore working on a power electronics system based on silicon carbide. This material reduces the above disadvantages and could lead to a five to ten percent increase in range on the road without having to change the battery size.