The Leaf has a 80-kW motor and 24-kwh battery. The voltage is 440V.
Yikes!!
440VAC 3ph 60hz power is not available in most residential areas.
This is on purpose, as 3 phase power is not needed for the average home power consumption. Usually 200 amp service is more than adequate for most homes. Single phase 220VAC is used for dryers and ovens. Most everything else is 120vac.
It is almost impossible to add 3phase power to residential areas. The grid will not support it. The transformers would have to be changed, additional conductors pulled into each street and into each home.
So, in conclusion:
There is no way to charge an electric car using a 440VAC transformer in probably 99% of homes.