514
New sodium-ion battery skips mechanical cooling with 97.9% efficiency (interestingengineering.com)
submitted 3 months ago by to c/technology@lemmy.world
91 comments fedilink hide all child comments
 

I've been hearing about these for a few years now. Huge if they work out at a large scale.

you are viewing a single comment's thread
view the rest of the comments
[–] 8 points 3 months ago* (2 children)

The article says that they contain NaCrO₂. That means that, by mass, they are 21% Na, 49% Cr, and 30% O. So I'm curious: why are they called sodium batteries, and not chromium batteries?

  • permalink
  • fedilink
  • source
  • hideshow 2 child comments
    •