Yes People are clueless about the power requirement to do such a charge. Hook one of these to a 100 watt solar panel in the sun and then see how long it takes to charge up. Probably a month.
As I recall a level 2 charger, typically the best you can get for a home, which already requires a serious electrical upgrade, can do 80 amps at 240 volts, that can provide a 10 to 80% charge in approx 3 hours and that would be for something like a 50KWh battery (between 200- and 300-miles usage).
Now imagine a 3 to 4 times larger battery charging in 5 minutes, OMG INSANE!
Someone earlier quipped needing liquid nitrogen to cool it, honestly that really is not far off.
Whoever wrote this article is clueless about physics.
True that. LOL The numbers from my real life experience (in my part of Alabama I average 5 peak solar hours per day, and with my EV getting 4 miles per kWh DC with local driving), the math on how long that would take is:
1,000 miles ÷ 4 miles/kWh = 250kWh
÷ 0.100 kW = 2,500 solar hours
÷ 5 solar hours/day = 500 days LOL
Now let's be real about the driving experience. Does anyone need just 5 minutes of restroom break every 1,000 miles? If you reduce the miles/kWh (and range) by the fact that on the highway you drive faster and get lower range (lower miles/kWh) just like a gas car gets lower mpg when driving on the 75-80 mph. When I drive 75-80 mph I get about 2.7 miles/kWh. And let's say realistically my restroom breaks are 10 minutes every 300 miles. The math for the fast charger then becomes:
300 miles ÷ 2.7 miles/kWh = 111kWh. I already can get 58kWh in 10-15 minutes (when I pull up at a fast charger with 15% left and charge it to 85% it takes 10-15 minutes at a 350kWh charger, my EV maxes out at 240kWh, and it's not 240kWh the entire time because it tapers down after the EV is charged 50% and really slows after 85%).
My point is that even if we drop it down from the 1,000 miles in 5 minutes charging to the much more practical restroom break time for driving at 300 miles charged in 10 minutes, it'd still demand way more power capacity than we have now. It'd be tough enough on the grid to make EV fast charging a thing even if only 20% of cars became EV's and even if we're talking only long trip charging (the idea being slower charging at home can handle local driving).