Citization needed. Actually we do not know and we are figuring this out.
Few examples:
- https://www.youtube.com/watch?v=wpJKM65tsCo
- https://www.msn.com/en-us/video/weather/worlds-largest-float...
Batteries would need to be safer, less toxic and less prone to be mined by children in Africa, also orders of magnitude more energy dense.
https://www.npr.org/sections/goatsandsoda/2023/02/01/1152893...