This is interesting and looks quite promising.
There seems to be countless articles and reports covering new battery chemistries that promise to shake up the Lithium ion world. Not much about non-hydrogen based fuel cells.
https://techxplore.com/news/2025-05-prototype-sodium-air-fuel-cell.html
#energy #BatteryStorage #CleanEnergy #ClimateChange #ev #solar

Prototype sodium-air fuel cell could power electric planes and trains
Batteries are nearing their limits in terms of how much power they can store for a given weight. That's a serious obstacle for energy innovation and the search for new ways to power airplanes, trains, and ships. Now, researchers at MIT and elsewhere have come up with a solution that could help electrify these transportation systems.