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Elecom launches world's first sodium-ion mobile power bank (www.notebookcheck.net)

submitted 2 weeks ago by [email protected] to c/[email protected]

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[–] [email protected] 11 points 2 weeks ago (2 children)

If people want to get one for the hell of it, I'm not going to stand in their way, but I really don't think that this product plays well to the strength of sodium-ion batteries.

My understanding is that sodium-ion batteries are not as energy-dense, but are expected to be cheaper per-kilowatt-hour than lithium-based batteries.

But this is a small, very-expensive-relative-to-storage-capacity, portable battery.

I'd think that sodium-ion batteries would be more interesting for things like an alternative to this sort of thing

large-capacity, mostly-non-moved-around batteries used for home backup during power outages, stuff like that. Maybe grid buffering.

[–] [email protected] 8 points 2 weeks ago

Sodium ion batteries don't experience extreme failure like other technologies so this battery bank could be seen as more suited to air travel. They are also more resilent temperature wise making this bank better suited to use cases where temperatures get really cold or really hot.

[–] [email protected] 4 points 2 weeks ago (1 children)

As in a reasonable replacement to Tesla home batteries?

[–] [email protected] 3 points 2 weeks ago

Like, the Powerwall things? Yeah, sure, they're in the same sort of class. I think

not gonna go looking through all of 'em

that the things I linked to above all are intended to have someone plug devices directly into them, and the Powerwalls get wired into the electrical panel, but same basic idea. They aren't really devices where energy density matters all that much, because once you put the battery somewhere, it probably isn't going to move much after that.