For a first approximation if it holds five times the charge it will take five times longer to “fill” at the same current.
The present limit is the current available in your household supply - the 30A 220v dryer socket equivalent.
So if the Leaf needs 8 hours for a full charge the new battery will need about 40 hours for a full, but bigger, charge.
A lot more charging infrastructure will be needed - invest in copper...:^)
Unless E-cat works, and then copper is going to be the most common metal on earth in the future.
If both of them pan out, it would be totally awesome. Cheap energy and a convenient way to move it around.
Here’s hoping!!!