My work. Like a diesel electric locomotive of the sky.
Won’t satisfy the greenies though, and likely won’t save enough fuel to merit the extra expense and complexity.
As I have stated before, batteries won’t work on airplanes. Heck they barely work in cars where the weight penalty is much less. Ideas like this and fuel cells may be able to work but are not likely worth it. Fuel remains cheap and plentiful and should be used.