As can be seen from all the comments the problems is the storage of electrons and the energy to weight factor.
Avgas has about 11 kw per kilo but IC engines at 25% efficient so can only extract about 3 kw/kilo. Electric motors are up at 90+% so only need a battery of 2.5 to 3.5 kw/kilo to match Avgas. Lithium has a theoretical energy density of about 10kilowatts/kilo. At the moment the best lithium batteries are around 500 watts/kilo so 5 five times the weight for the same amount of Avgas. Billions of dollars are being spent on battery research so higher densities are coming. The holy grail is lithium air batteries, these should meet or exceed the 2.5kw/kilo target to make liquid fuels obsolete. A US university has an experimental Lithium air that is looking good, time will tell. In the last ten years the cost of EV batteries have dropped by a factor of ten to about 175 dollars per Kilowatt and heading towards $100 per Kw which makes the manufacture of EVs the same as an IC vehicles, plus the density has doubled and will keep increasing. So for aircraft at the moment batteries are not a total replacement solution but a 2 hour endurance is just feasible, which would be good for training. A hybrid is the best solution at the moment it has so many good points a high speed high power density IC engine gas or diesel with no gear box or harmonic problems. Props can be located almost any place on the airframe. So electric drive is compelling and I think will be more reliable and cost less to operate in the future.