logoalt Hacker News

Animatsyesterday at 11:54 PM3 repliesview on HN

"CATL’s “Naxtra” sodium-ion batteries achieve an energy density of up to 175 Wh/kg, the company said, putting it on par with lithium iron phosphate (LFP) batteries."

Useful, but not a "breakthrough" in energy density. More like another good low-end option.


Replies

dghlsakjgtoday at 1:07 AM

Isn’t the benefit that it is durable and has much higher charge/discharge amperage limits?

A battery that can charge as fast as you can pump electricity into it, as many times as you want opens up a lot of possibilities.

E.g. a car that has a 200 mile range and a 5 minute charging time is way more useable than a car with 300 miles of range that takes an hour to charge.

apitoday at 12:12 AM

Sodium is a lot more abundant than lithium. Scaled up this could be a breakthrough in battery cost per kWh.

show 1 reply
CyberDildonicstoday at 2:10 AM

The benefits are cold performance, durability and potentially price in the future.