this post was submitted on 23 Dec 2024

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Sodium batteries hit 458 Wh/kg: New material closes gap with lithium (interestingengineering.com)

submitted 3 weeks ago by voidx to c/futurology

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[–] MelodiousFunk@slrpnk.net 6 points 3 weeks ago (1 children)

Sodium batteries are thermal batteries, right? So they need turbines to recover the energy into electricity?

Are you thinking of concentrated solar, maybe?

[–] JohnDClay@sh.itjust.works 4 points 3 weeks ago

I think I was mixing those up with thermal energy storage and thermal batteries.

https://en.m.wikipedia.org/wiki/Thermal_energy_storage

https://en.m.wikipedia.org/wiki/Molten-salt_battery#Thermal_batteries_(non-rechargeable)

Sodium batteries do have a high temperature type, but it does look like they are non rechargeable and do generate electricity directly. The thermal energy storage only stores thermal energy rather than electricity, but they use sand.