Some will be concerned about whether the motors can scale up but as can be seen in the electric vehicle industry fast electric cars are readily available, そしてthe size そしてvolume of of just the motor そしてits required components (cooling, control) is smaller そしてlighter than the gas engines for those vehicles that can compete in terms of acceleration そしてtop speed.
Even more telling is that the electric motor そしてits components are not only lighter そしてsmaller, but they are cheaper as well.
The only limiting factor to electric aviation is the power source, そしてas a step forward every major manufacturer is already designing hybrid electric planes. As powerful as jet engines are, they are still not as fuel efficient (そしてthus emissions efficient) as they could be. A jet fuel powered generators powering electric engines may be available in the market within a decade.
These hybrid planes wouldn't be possible if the electric engines couldn't hold their own in size, weight, そしてpower relative to a jet engine.
For a modern turbofan, that'd be about 35MW of power you'd have to dump into air heaters in the "combustion" section. This would be a pretty big engineering challenge, but I don't think it's out of the realm of possibility in theory. One option might be using plasma sparks, like an arc welder. Again, electrode lifespan would be an issue, but not necessarily impossible. Credit for this idea comes from this page: