this post was submitted on 05 Apr 2026
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Lithium batteries are already 90% efficient, how do you get 20% better efficiency than that?
Is he talking about density instead?
I skipped the video and went straight to the source article
So "efficiency" means "range" and it's a confluence of multiple factors that allegedly allow sodium batteries to use more of the power they store and use their power more efficiently. The article notes that sodium batteries are still more expensive than lithium-ion, but pretty much every major EV maker on China has R&D programs on them at the moment, leading to speculation that the costs will converge around 2027 and allow this battery technology to take over commercially.
That's pretty impressive
maybe it's 20% less inefficient.
so 90% efficient could be called 10% inefficient. and 20% of 10% is 2%. so 20% better efficiency gets you a 92% efficient battery.
it's a stretch yes, but stranger things have happened in the funny lands of title crafting
Could be gains in weight as well. A significantly lighter battery will have gains in range efficiency for a vehicle if it was much lighter that the other.
that sounds like something marketing would come up with
Lol good point. Since it's a proportional comparison there's got to be a way to make it make sense. Depends on the efficiency calculation itself though.
Could be a 20% decrease in energy loss so 10% * 20% = 2% Meaning overall efficiency is up to 92%. Doesn't exactly seem honest but 🤷
Could be cold weather performance.