Some people think that batteries can’t fly. They’re wrong.
Concept plane Solar Impulse 2 circles the globe
Pipistrel has production electric trainer-scale aircraft!
Eviation’s Alice electric nine-passenger commuter aircraft prototype
Experimental 2- and 4-seat aircraft trainer
Airbus concept plane E-Fan flies the English Channel
Lilium concept "Jet" isn’t a Jet but a flying car that actually flies
As in many areas, partial migration to a new technology can help pave the way, so this hybrid jet concept by Zunum may make some progress.