this post was submitted on 18 Sep 2025
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cross-posted from: https://lemmy.zip/post/48958993

energy density of 175 Wh/kg

CATL explained that sodium-ion batteries have slightly lower energy density than lithium-ion batteries but provide distinct advantages in low-temperature performance, carbon footprint, and safety.

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[–] davidgro@lemmy.world 38 points 8 hours ago (2 children)

I really hate how all these headlines give battery capacity as a distance, as though that was a meaningful measure or allowed comparing different technologies.

[–] Theoriginalthon@lemmy.world 13 points 8 hours ago (1 children)

But it's all stupid people and marketing people understand more=better cheaper=better. I think it's why ev adoption has been so poor, questions I get asked are what's the range like? Doesn't it take forever to charge? And aren't they really expensive?

[–] MeowWeHaveAProblem@toast.ooo 3 points 5 hours ago

They do the same thing with grid storage batteries and I hate it. "Our battery lasts 20 hours!" Think it was a better unit like watts per 4 hours but media and marketing mess with it.