100 km in less than three minutes: BMW and Porsche test ultra-fast recharging for electric cars


One of the great challenges of the electric car is its current recharge process. In addition to a frankly low recharge infrastructure – especially in countries like Spain – the recharge times are usually very long. For example, to fully recharge the 90 kWh battery of a Jaguar I-Pace in a home wall box, we need more than 10 hours of power connection. In garages and homes, a slower recharge is not a big problem, but yes, that means big obstacles in long journeys. So far, of course. BMW and Porsche have the solution.

Both German manufacturers are testing New high power recharging system and speed. The system is simply called FastCharge – they did not think twice about the name – and received a German government subsidy of 7.8 million euros. The first FastCharge loading station opened its doors in Jettingen-Scheppach and its DCS Combo DC power chargers have a maximum power of 450 kW. This power is nine times higher than the fast recharge points we have in Spain, with powers of up to 50 kW at best.

100 km of autonomy in just three minutes and the battery full in less than fifteen minutes. They want an electric recharge to be as simple as filling the tank of their current car.

To demonstrate the potential of this technology, BMW and Porsche have launched their chargers with two electric prototypes. Its batteries of up to 800 volts and its electrical systems were prepared to digest the "compulsion" of the electrons. The test mule of the Porsche Taycan was able to reach a recharge power of 400 kW, receiving in less than three minutes sufficient electricity to travel up to 100 km. The ultimate goal of the FastCharge system is to make recharging an electric car as quick and easy as refueling an internal combustion vehicle.

At the moment, this pioneering charging station is free to use. It is able to detect the maximum power at which our car can be recharged, minimizing recharge time for the physical limits of our battery. Not all cars are primed for recharging powers of 450 kW, far from it. The Jaguar I-Pace can be recharged up to a maximum of 100 kW of power and the Tesla supports a rapid recharge of up to approximately 120 kW of power. The I.D. of Volkswagen will support fast refills of up to 150 kW, according to the latest data offered by the brand.

The BMW i3 recharged 70% of its battery in just 15 minutes. The bottleneck is on its own battery, unable to withstand maximum recharge power.

In a utopian future, electric cars will recharge at surprising speeds in ultra-fast refueling stations. They will be key for the electric car to function properly outside of an urban environment. The bottleneck today is in the electric car batteries, which are not yet ready for such powers. However, the advances of FastCharge are evidence of the technological development of electric cars. Maybe it's best to wait a few years for your technology to evolve, because it takes gigantic steps in sight.

Source: The Verge


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