My company operates two Jupiter Power owned LFP batteries in the MISO market. Each of them draws .5 - 2MW constantly for the HVAC system. If the cost for sodium batteries is similar to LFP, that alone would be a reason to switch.
Not an expert, but from what I read the expectation is for sodium ion batteries to get substantially cheaper than lithium, mainly due to material cost.
Lithium makes up 0.002% of the Earth's crust, meanwhile sodium is 2.36%, and there's quite a lot of it in the ocean.
The main downside is power density, which for grid storage is not as big a deal as it is for vehicles. But it will still be some years of research on sodium batteries for the cost advantage and manufacturing scale to materialize.
I want to replace my Lithium home battery, and what I really want to do it to move to one of the new sodium ion batteries..e.g like the one CATL is supposed to have at some point?
Anyone have a good idea when these will be available for consumers?
Bluetti has a small battery pack for now. I think the options for consumers will balloon once CATL mass produce sodium ion cells. Solix/anker, jackery, ecoflow, etc all use CATL cells already.
Na-Ion batteries are not practical for home storage right now. They have a much higher voltage range compared to LFP batteries, so regular inverters and chargers will not work reliably. Nothing insurmountable, but the supply chain is just not here.
Na-Ion cells are great for grid-scale storage because they potentially can go down to something like $20 per kWh. But bulk LFP cells are already at ~$60 per kWh, so their cost is not really a deciding factor anymore.
Hopefully never. If they ever do, it means the local government truly doesn't care about you anymore.
Na is basically Li times 30. This is good in that they make really effective batteries. This is bad in that when the battery malfunctions, the energy is released at 30x the rate. So remember when that Telsa caught fire and the driver walked away very scared but ok. If those were Na-ion, they wouldn't be ok...or alive...or recognizable as human. Basically, these are far too dangerous for consumer use. And any grid scale battery will need about a mile of gravel around them to prevent any fires or deaths from explosions.
Sodium ion batteries are less energy dense than lithium ion and are not prone to dendrite formation. They are also more thermally stable and less likely to do thermal run away reactions.
Also, since they are less energy dense they don’t store the same potential energy.
You are probably thinking of metallic sodium batteries which are completely different.
What? All the data suggests that sodium ion batteries are safer than lithium ion batteries: it is harder to set them into thermal runaway and they are less violent when they do so.
Keep in mind, we could have had local Na-Ion battery production in the US. The company producing them needed about $5m of bridge loans, with products already sitting in warehouses awaiting the UL certification.
Yeah, I had questions when Kurt Kelty was saying that Peak's battery was "kicking butt" after the article said Peak is still building their battery factory and currently buys its cells from China.
Is GM testing Peak's cells or some Chinese company's cells?
Its a failure in the U.S. because the bet is on solid state batteries. Personally I won't take the EV plunge until they have those. The only exception for me to not wait would be the 10k BYD car. At that price point and it lasted 3 years i'd be happy.
The article is about grid storage, but grids can also use solid state and battery tech is shared between different usecases. My point was where the bet is.
QuantumScape is a good example as it entered into agreements with opertors for their battery tech.
My company operates two Jupiter Power owned LFP batteries in the MISO market. Each of them draws .5 - 2MW constantly for the HVAC system. If the cost for sodium batteries is similar to LFP, that alone would be a reason to switch.
Not an expert, but from what I read the expectation is for sodium ion batteries to get substantially cheaper than lithium, mainly due to material cost.
Lithium makes up 0.002% of the Earth's crust, meanwhile sodium is 2.36%, and there's quite a lot of it in the ocean.
https://en.wikipedia.org/wiki/Abundance_of_elements_in_Earth...
The main downside is power density, which for grid storage is not as big a deal as it is for vehicles. But it will still be some years of research on sodium batteries for the cost advantage and manufacturing scale to materialize.
I’d love a shed sized battery sitting on the corner of my property if it could give me 5-7 days of power.
I want to replace my Lithium home battery, and what I really want to do it to move to one of the new sodium ion batteries..e.g like the one CATL is supposed to have at some point?
Anyone have a good idea when these will be available for consumers?
Bluetti has a small battery pack for now. I think the options for consumers will balloon once CATL mass produce sodium ion cells. Solix/anker, jackery, ecoflow, etc all use CATL cells already.
Na-Ion batteries are not practical for home storage right now. They have a much higher voltage range compared to LFP batteries, so regular inverters and chargers will not work reliably. Nothing insurmountable, but the supply chain is just not here.
Na-Ion cells are great for grid-scale storage because they potentially can go down to something like $20 per kWh. But bulk LFP cells are already at ~$60 per kWh, so their cost is not really a deciding factor anymore.
Why would you replace it? That asset likely has at least 10 years in it if you already have it.
Probably operating temperature and safety.
Why? You also need to replace your inverter in that case.
Hopefully never. If they ever do, it means the local government truly doesn't care about you anymore.
Na is basically Li times 30. This is good in that they make really effective batteries. This is bad in that when the battery malfunctions, the energy is released at 30x the rate. So remember when that Telsa caught fire and the driver walked away very scared but ok. If those were Na-ion, they wouldn't be ok...or alive...or recognizable as human. Basically, these are far too dangerous for consumer use. And any grid scale battery will need about a mile of gravel around them to prevent any fires or deaths from explosions.
Pretty that’s just not true.
Sodium ion batteries are less energy dense than lithium ion and are not prone to dendrite formation. They are also more thermally stable and less likely to do thermal run away reactions.
Also, since they are less energy dense they don’t store the same potential energy.
You are probably thinking of metallic sodium batteries which are completely different.
You have this flipped backwards
What? All the data suggests that sodium ion batteries are safer than lithium ion batteries: it is harder to set them into thermal runaway and they are less violent when they do so.
What bullshit are you spouting sodium batteries are safer and do not have the same thermal runway concern that lithium batteries do.
Keep in mind, we could have had local Na-Ion battery production in the US. The company producing them needed about $5m of bridge loans, with products already sitting in warehouses awaiting the UL certification.
This company got sold for scrap.
your comment would be more interesting if you actually provided any details at all
Sorry, I accidentally cut off the last paragraph when posting. The company was Natron Energy: https://techcrunch.com/2025/09/05/natrons-liquidation-shows-...
> Peak Energy is buying its commercial cells via contracts with Chinese suppliers
So really just assembly and sales then. I suppose it's a good start and maybe if business takes off they can figure out their own cells.
Yeah, I had questions when Kurt Kelty was saying that Peak's battery was "kicking butt" after the article said Peak is still building their battery factory and currently buys its cells from China.
Is GM testing Peak's cells or some Chinese company's cells?
Its a failure in the U.S. because the bet is on solid state batteries. Personally I won't take the EV plunge until they have those. The only exception for me to not wait would be the 10k BYD car. At that price point and it lasted 3 years i'd be happy.
He constraints and priorities for EVs and grid storage are very different.
In a car it’s worth paying more for higher volumetric and gravitational density. For aircraft even more so.
For grid storage, physical space is usually not the largest issue. Cost of deployment, stability, and cycle life are bigger factors.
This is for grid storage, not EVs.
The article is about grid storage, but grids can also use solid state and battery tech is shared between different usecases. My point was where the bet is.
QuantumScape is a good example as it entered into agreements with opertors for their battery tech.
Good article on solid state for the grid: http://large.stanford.edu/courses/2025/ph240/mann2/
Nobody in their right mind would put Na-ion batteries in an EV. The lawsuits would never stop. It would be worse than Asbestos lawsuits.
I think you need to start backing up your claims. (And no, beautiful, clean coal won't cut it.)
Receipts please. This is counter to everything I've read about the technology.