You may be right, recycling of lithium hexafluorophosphate batteries is proving to be a major technical challenge. Having said that, IMO there is general agreement fossil fuels have to go.
I've just read an article where one of Australia's biggest natural gas producers is admitting sequestering carbon dioxide by pumping it underground is a failure, but that always was thermodynamic BS.
I can't see an electric aircraft making it from Melbourne to Los Angeles. It's like electric cars, which are much better suited to urban travel.