Taking this at face value, I note two things:

1. This shit would overload our current electricity grid fast!
2. This is a terrifying ammount of power going into the car.

As for point 1, the power has to come from somewhere, and our current power grid is already having problems keeping up with current charging currents, and if a battery like this will be able to get charged 80% in 9 min, to use it you have to have a power source to supply that ammount of power in that time.

This could possibly be mitigated somewhat with huge batteries at the charge station that get charged slowly over time and that is then used to boost the charging of the car, but this would need specialized maintenance and commes with big potential risks.

As for point 2, the huge ammounts of power being delivered to the car will require a perfect connection between the power source and the car, it will require heavy insulation in and around the car, I wouldn't want to be within 10 meters of the car while charging due to potential risk of arc flash.