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Why does an electric airplane need to use batteries for storage? I'd say advance the technology by using other sources of power if possible. Instead of compres
by dghughes 5y ago
Why does an electric airplane need to use batteries for storage? I'd say advance the technology by using other sources of power if possible.
Instead of compressed liquid hydrogen which is hard to contain maybe some type of heated metal-hydride using hydrogen. Convert with a fuel cell, maybe batteries as a buffer and for their efficiency. Event that weird PowerPaste stuff may be suitable too. https://en.wikipedia.org/wiki/Powerpaste https://en.wikipedia.org/wiki/Powerpaste
I've seen 30kWh to 50kWh per 100kg of hydrogen metal hydride. The linked says says Tesla is about 75kWh per 453kg (1,000 lbs) and the Joby S4 claims 150kWh 907kg (2,000 lbs). Batteries would be more efficient but if hydrogen metal-hydride is 50kWh/100kg a Tesla could have 340kWh at the same weight of storage or lose 300kg and still have 75kWh.