This seems like a promising battery technology.
But, for grid connected energy storage, two things matter above all:
1. Cost per KWh. (Or rather cost per GWh). The lower the better.
2. Number of cycles. I would suggest anything better than 1 cycle per day for 20 years is enough, i.e 10,000 cycles.
3. Round trip efficiency. This needs to be up near the 90% of Lithium chemistries.
Temperature range is not that important. If you want the battery to work at -30C, you can insulate the shipping container, and the battery inefficiencies will do the rest.

The article mentions (2), and the battery over performs on Power density, which is irrelevant.

Crucially, what is the cost? LFP seems to be heading for cell costs of $50 per KWh. Can Na go much lower?

Most Na-ion cells operate at least down to -20 C (about -4 F).
That should be cold enough for most places, and Lead Acid (PbSO4) is only good down to -20 C anyway.
Even LiFePO4 cells are safe to charge down to 0 C, so I don't think the 0 C figure is correct.
There are some Na-Ion cells (not in production) that operate down to -70 C.
(from Feb 2022 article):
See pubmed.ncbi.nlm.nih.gov/35044037/#

I am wondering what amount of current PV array or public grid will produce to charge 50,000 cycle in 15mins, this is going to be crazy, is it going to require 1000A to charge it, I'm waiting for home consumer distribution.

Quote from: A on August 21, 2024, 21:15:36

Quote from: GeorgeS on August 21, 2024, 20:29:54While not a good match for portable/mobile applications (due to energy density) they are an awesome match for fixed renewable energy systems.

This could be a real boon for off grid applications.

It probably is good enough to replace 12v lead acid batteries too.

The operating temperature range is too poor for it to replace lead acid batteries, you want to be able to start your car in very cold weather.

Quote from: Albert lowes on August 22, 2024, 00:56:28Hi to charge in 10 minutes the current flow would be enormous. If you wanted to charge 10 at once multiply 10 times enormous.

Yes. And if you wanted to charge 25 at once, multiply by 25 enormous. And if you wanted to charge 100 at once, multiply by 100 enormous. And if you wanted to charge 101 at once, multiply by 101 enormous.

Hi to charge in 10 minutes the current flow would be enormous. If you wanted to charge 10 at once multiply 10 times enormous.

***CORRECTION: 50x the lifespan of standard Li-ion cells.***

Just a quick correction: Edgecombe County is in North Carolina, not South Carolina.

Quote from: GeorgeS on August 21, 2024, 20:29:54While not a good match for portable/mobile applications (due to energy density) they are an awesome match for fixed renewable energy systems.

This could be a real boon for off grid applications.

It probably is good enough to replace 12v lead acid batteries too.

Quote from: GeorgeS on August 21, 2024, 20:29:54While not a good match for portable/mobile applications (due to energy density) they are an awesome match for fixed renewable energy systems.

This could be a real boon for off grid applications.

Soooo... It's perfect for stationary batteries.

While not a good match for portable/mobile applications (due to energy density) they are an awesome match for fixed renewable energy systems.

This could be a real boon for off grid applications.

It's perfect for stationary batteries.

The energy density's super low...