Tesvolt and Stercom aim to accelerate inductive charging of e-cars
Post date: 08/07/2021 - 10:00
German Tesvolt GmbH becomes shareholder of Stercom Power Solutions, expert in inductive charging. Both companies now want to advance the wireless charging of e-cars, buses and trucks. According to the company, it has already found answers »to previously unsolved questions,« such as charging power and the correct parking position above the magnetic coil.
In inductive charging, electrical energy is transferred without contact from a magnetic coil in or on the ground to the receiver coil in the electric vehicle. This makes many short but fast charging processes possible - for example in front of shopping centers, in parking garages, but also at home. Car manufacturers such as Audi and BMW are already installing charging coils in new vehicle models.
»Our goal is to jointly bring highly efficient charging systems to market and, in the medium term, enable inductive supercharging with up to 200 kilowatts of charging power,« explains Simon Schandert, founder and technical CEO of Tesvolt. This would also make »charging while driving efficient in the future.«
So far production-ready wireless charging is only possible at 3.2 kilowatts. »We want to bring an inductive charging station with a charging power of 44 kilowatts to the market,« says Daniel Hannemann, founder and commercial director of Tesvolt. He adds that Stercom's market-ready silicon carbide technology, with 95 percent efficiency, allows for very efficient energy transmission - »even with a distance of up to 20 centimeters between the transmitter and receiver coils, something no other supplier on the market can do so far.« In addition, the charging stations would include intelligent software that would indicate to the driver the correct parking position above the solenoid coil.
The many small charging processes would make large car batteries superfluous; the batteries would only have to be about half the size. That makes e-cars much cheaper and also lighter, so they are also more efficient, says Robert Sterff, founder and CEO of Stercom. Test tracks with magnetic coils under the asphalt already exist in countries such as Italy, France and Sweden.