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A hydrogen fuel cell is the highest energy density battery possible. It doesn't how more advanced li-ion or a variant of it gets, hydrogen fuel cells will still
by Hypx_ 5y ago
A hydrogen fuel cell is the highest energy density battery possible. It doesn't how more advanced li-ion or a variant of it gets, hydrogen fuel cells will still have a higher energy density.
Furthermore, by the time you're talking about metal-air batteries you are basically build a fuel cell but with metals. Which is to say you're just building fuel cells that are fundamentally inferior than something that already exist.
We have basically created an inverted worldview. In reality, the li-ion battery is fundamentally inferior to hydrogen fuel cells, and any attempt to advance EV technology will inevitably produce a hydrogen fuel cell powered car.
- nickik 5y agoGood luck betting on that. But show me the tech because: > From their website: Storage is 30% lighter, 7% smaller, and 17% less expensive than Lithium-ion battery per kWh. This is nonsense that wont happen.
- Hypx_ 5y agoCurrent fuel cell tech with compressed hydrogen has an energy density of above 1,000 Wh/kg. It's already far beyond what li-ion can provide.
- nickik 5y agoLets compare the tech when its actually in a vehicle and being sold at a few 1000 a year at least. And then compare the whole system and end to end energy efficiency for society.