EV industry seen shifting to 800 volt technology

Raymond S. Hughes

But with most current charging stations primarily based on 400-volt units, is there nevertheless an benefit for autos with 800-volt architectures?

Authorities say sure, even though vehicles will have to have an 800-volt-based charging infrastructure to choose entire edge.

“Substantially of the existing DC rapidly charging infrastructure is for 400-volt motor vehicles,” said BorgWarner’s Husted. “To allow the more quickly charging that 800 volt allows, the latest generation of substantial-voltage, significant-energy DC speedy chargers will be wanted.”

That’s not an issue for home charging, but the highest-velocity public charging networks so significantly are limited. Reich thinks it will be a unique challenge for freeway charging stations.

“The refill has to be as speedy as fueling up at a fuel station,” he reported. “This is the use scenario” for 800-volt charging.

Europe is observing the increase of these networks.

Ionity is a multi-automaker partnership with a quantity of 800-volt, 350-kilowatt highway charging factors.

“A 350-kW charger interprets into five to seven minutes charging time for 100 km,” explained Otmar Scharrer, senior vice president electrified powertrain technologies at ZF. That’s about the very same time as a coffee break, he pointed out.

“This is really a sport-changer,” he stated. “This is anything that will generate acceptance of e-mobility.”

In accordance to a recent report from Porsche, it usually takes about 80 minutes to add 250 miles of vary at a normal 50-kW, 400-volt station. That time drops to 40 minutes at 100 kW. If the charging plugs are cooled — incorporating charge, bodyweight and complexity — that time can fall to 30 minutes, Porsche claimed.

“A shift to a bigger voltage is as a result unavoidable in the quest to accomplish charging times in the wished-for corridor,” the report explained. It would drop to about 15 minutes with 800-volt charging, the automaker stated.

Having into account the time to shell out, “the target of ‘charging like filling up’ is consequently practically inside of reach.”

Audi says the A6 Avant E-tron concept, based on the exact PPE architecture as the Taycan, can choose in plenty of power in just 10 minutes at a speedy-charging station to generate about 186 miles.

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The News for April 22nd, 2022

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