[Arizhel]

Yes, it's possible to make anything electric that currently runs on fossil fuel.

Making electric motors to spin propellers isn't that hard. We already do this for ships: any modern cruise liner has electrically-powered propellers (screws) that propel the ship. The challenge on a plane is getting the power to the motors. You could do a serial hybrid system, where a diesel generator makes power for the motors; this is what they do on cruise ships, but while it works well there for various reasons (including the variable-speed nature of running a cruise ship, and the usefulness of "azipods" for maneuverability), it's not likely to work so well for planes since planes in flight run their engines near full-throttle all the time (so you end up using more fuel, not less, due to conversion losses). So the idea is running the planes on batteries, like electric cars do now. The problem there is the weight of the batteries needed to store that much power is prohibitive. If someone invents battery tech that can store significantly more energy with the same weight, then the equation will change and we could very well see electric airplanes.