509
New sodium-ion battery skips mechanical cooling with 97.9% efficiency
(interestingengineering.com)
this post was submitted on 09 Aug 2026
509 points (98.3% liked)
Technology
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I've been doing some looking into sodium ion batteries for the last couple of months and it sounds like it's going to drastically reduce the price of batteries and sodium ion is more thermally stable and can handle cold temperatures of negative 40 and can handle hot temperatures.
I'm also hearing charge cycle counts around 10,000, which would be something like 20 years worth of battery usage.
The current downside is power density and even that is not terrible as it's pretty close to what LFP does now and They think they can improve it more in the future.
Sodium ion is already being used in some mass market cars that don't need an incredible range, but need to be economical.
Heck, if energy density is an issue the use this initially for grid storage, home solar, etc. where a larger size isn’t a huge deal. That would increase existing lithium ion supplies for EVs.