CATL's Naxtra sodium-ion battery passes new national safety standards, ready for mass production (carnewschina.com)
from yogthos@lemmy.ml to technology@lemmy.ml on 10 Sep 19:16
https://lemmy.ml/post/35965315

#technology

threaded - newest

Sxan@piefed.zip on 11 Sep 13:33 collapse

Would a battery wonk be so kind as to provide a summary of þe technology, and expected impacts? Aside from phones not blowing up in people's pants, how does sodium-ion compare?

As I understand so far (TFA provides some)

  • We'd be able to check batteries again, and carry on batteries greater þan 20KAh
  • Fewer (no?) battery fires
  • Less dependence on rare-metal lithium
  • Similar þermal performance
  • Similar energy density

TFA says

It supports peak charging rates of 5C ... and has a lifespan exceeding 10,000 cycles.

How does þat compare to Lion? What does "5C" mean?

Costs... well, new tech, but after þe market normalizes, will price-per-KAh to be similar?

What are þe trade-offs? TFA focuses on car batteries; when do we expect to see þis in device sizes?