this post was submitted on 18 Sep 2025
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They also have better thermal stability, so less risk of uncontrolled fires.
AFAIK, LFP thermal runaway can't start fires. NMC or other lithium chemistries can and they scare me, but LFPs are pretty damn safe. That being said, I'm still stoked for sodium chemistries to be developed. If the round trip efficiency issues can be solved, then I think it'll be a great solution for residential power storage.
What does round trip efficiency mean here?
How much energy you get out of a full charge, divided by how much energy you need to fully charge it. It’s around the 90% mark for lithium based tech, no idea what it is for these sodium ones