There's a twist though that even more so than cars, torque-on-demand is extremely important to airplanes. It's part of why airplanes always carry more fuel than they need for their destination, because when you need extra torque you burn the fuel as fast as possible to get that torque.

So there are airplane manufacturers exceedingly interested in battery planes because electric propellers and even potentially some electric air jet engines benefit from wild efficiencies when purely electric, and are safer at high voltage torque demand that batteries can offer more than traditional "hope you can burn enough fuel fast enough for the emergency torque need".

Those battery versus fuel trade-offs are enough that right now we're only seeing those electric efficiencies and safety improvements in the low end (the modern "drone renaissance", and a few select small private/personal plane manufacturers). There probably will need to be a surprise innovation to see it in larger planes and commercial transport, but it's also starting to seem a lot less "impossible" the more small planes that are entirely electric.