Car: Research on induction charging of electric cars is underway

Induction charging goes one step further, which now charges cars even faster. The American Volkswagen Group, in collaboration with the Department of Energy’s Oak Ridge National Laboratory (ORNL) and the University of Tennessee, Knoxville, is launching a new research project to develop high-power induction charging technology for electric car batteries.

The participants in the program, using an electric Porsche Taycan for their tests, managed to increase the power of the inductive charge from the current 6.6 kW, to the level of 120 kW. This was recently announced by VW, which revealed that in the next stage, the company’s goal is to increase the power to 300 kW. This will result in the Porsche Taycan recharging its batteries to 80% of their capacity in about 10 minutes.

Researchers are focusing their efforts on finding ways to reduce charging losses from transmitters to receivers. Once the problem is overcome, then a big step will have been taken so that the technology can pass to the production process. The researchers confirm the high efficiency of the system and the small rates of power loss between transmitter and receiver.

Many models already offer induction charging systems. But this technology still has a long way to go to complete it, as today there is international standardization which covers inductive charging only up to 11 kW. But as everything shows, very soon there will be standardization for even greater power.

It is worth noting that Momentum Dynamics, the company that has developed the technique for wireless charging, now has an induction charging system applied in Oslo to a taxi fleet of Jaguar i-Pace cars and can develop power up to 50 kW, for a limited time intervals. Among the manufacturers that test induction charging systems is BMW, without giving more information about the research it carries out.

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