Wikipedia has a comparison table at https://en.wikipedia.org/wiki/Sodium-ion_battery#Comparison but no idea how accurate/up to date it is.
Lithium batteries aren't made of lithium. They're made of nickel- or iron, or manganese, or cobalt. In iron and manganese batteries the #1 price factor is the manufacturing- the energy, solvents, and machinery used to deposit materials onto film.
Likewise sodium batteries are not made of sodium. There's 13x more iron in them than sodium. There may also be large amounts of manganese or vanadium. The cost of manufacturing is also higher per kWh.
It will take time to mass produce things regardless, but I imagine Sodium has far fewer bottlenecks.
Industrial Sodium is made with electrolysis of sea salt; the factory is next to the Gulf of Bothany and has abundant (wind and hydro) power, so the other material supply is safe.
It wasn’t hard anywhere, but it’s straightforward in that particular case.
Iron is on top. Lithium is one up from the bottom left.
Now if you look at how larger stars operate (the CNO cycle [1]) you’ll see that it matches up with the higher relative abundance of carbon, nitrogen, and oxygen in the universe. Lithium, beryllium, and boron get “skipped over” in a sense.
Furthermore, if you look at a graph of the relative abundance of all elements, you’ll note that odd-numbered elements are less abundant than even (with the exceptions of hydrogen and beryllium). This is called the Oddo-Harkins rule [2] and it may also be playing a role.
Edit: I should also add that the third major process in stars, triple-α [3], involves the fusion of three helium-4 nuclei into one carbon-12 nucleus. This occurs in older stars that have exhausted most of their hydrogen fuel and so have built up a large core of “inert” helium. When their outward pressure from hydrogen fusion is no longer high enough to withstand gravity, they reach the much higher pressures and temperatures needed for triple-α fusion. Unfortunately for the lithium industry, there’s no chance of producing lithium this way since it is skipped over on the way to carbon.
[1] https://en.wikipedia.org/wiki/CNO_cycle
There is also a lot less Lithium in the universe than our models predict:
You cannot estimate abundance by atomic number like that. The big bang produced mostly hydrogen and helium, with traces of lithium and beryllium. The elements heavier than that are mostly produced by stars, and the physics of fusion have a massive impact on what elements, specifically, get made. Free protons join together to become helium-4 much more readily than any other fusion process, meaning that by the time heavier things start forming, the raw material is entirely ⁴He.
This means that things that are easily made of ⁴He are dramatically more common than anything else, making the most common isotopes after ⁴He oxygen-16 (4 alphas), carbon-12 (3 alphas, less common than oxygen because it's less stable and easily picks up another alpha), neon-20 (5 alphas), and iron-56 (14 alphas to nickel-56 which immediately decays twice through β+ to produce ⁵⁶Fe). Iron is so high up above all the other intermediate steps, because it's the last stop: In heavy enough stars, the entire core converts to iron, and reactions past that are energy-consuming, not energy-producing, so after that the star collapses.
Lithium is not on any of the major stellar nucleosynthesis pathways, which means it's only produced by exceptional processes, making it roughly as universally abundant as the other stuff that is made by exceptional processes, like scandium or gallium or zirconium. But none of that matters, because:
Lithium is abundant and easy to extract in the earth's crust.
While there's not that much of it up there, there's plenty easy to extract down here, because it's so light and likes forming light compounds, meaning that a huge proportion of all the lithium of all the rocks that came together to form the earth is reachable to us. Lithium is not rare. Any statement about lithium batteries that bemoans the scarcity of lithium is doubly confused: Firstly, because lithium is simply not scarce. Secondly, because lithium is such a tiny portion of the battery, that despite being in the name, only a small fraction of the materials cost is lithium.
Lithium price has had a few big spikes because mining is a very high-capital industry where spinning up projects is measured in years, if not decades, and we suddenly started using a lot more lithium in ~2010. Accordingly, the price has spiked from the ~$5k per ton (which is roughly in the same ballpark typical cost of extraction, where any abundant mineral prices end up at), to the heights of $37k per ton last year. Even at this high price, lithium was not even the most expensive material component in most lithium batteries, because typically only 1-3% of the battery's weight is lithium.
But these prices won't last, because having the price of a commodity so high above the cost of extraction means that new mining projects are spinning up.
Lithium production capacity is scarce however, since it’s a mostly useless element unless you’re building batteries out of it.
Anyway, once cities realize that they need to stop taking water from rivers, we should be able to skim quite a bit of lithium from desalination plant waste water.
I don't want to sound like a conspiray theorist, but something tells me the really big actors (like states) only want materials that they can control the suply of.
Well you do?
It won't work as long as there's a roughly equal alternative that's cheaper/easier to produce. Free market will win here.
There's no way one state can force another state (aside from war) to manufacture something a particular way. It's like if I controlled the world's timber supply and said Canada must produce houses out of timber and not, say, concrete. Canada's gonna go produce using concrete unless I somehow make my timber price competitive.
This announcement is about an improvement in energy density made possible by $Bs being invested to allow sodium batteries to become more competitive with lithium.
There are also other battery chemistries being rolled out. Iron based ones seem particularly promising for stationary storage.
Any country without an expeditionary military force (about 187 of them) likes the resources they have. Ab abundant is great unless you have a known military adversary with extra-territorial ambition (that’s three countries).
Think about it :)
If someome resists, they will end up just like anyone who opposed the US's quest to take other nations oil.
As Donald used to say:
"Take the oil, then get out". They took the oil and stayed.
Lipo can be 200+ /kg density and Li Ion can be 250+ in current, commercially produced, generations of battery cells.
I'm not a pro so anyone feel free to correct me.
This is an article about the Northvolt news by a German journalist specialized on battery technology (in German): https://www.golem.de/news/akkutechnik-northvolt-und-altris-e...
He says that 160 Wh/kg is in the ballpark of LFP batteries from five years ago. It is, however, about the same as the sodium batteries announced by CATL in 2021.
Frank Wunderlich-Pfeiffer should consider writing in english, I love his expertise and clarity of writing.
This is huge. HUGE.
China dominates the graphite market and now has export controls.
IIRC, most current Li and Sodium batteries use graphite anodes of some kind. Northvote's use of hard carbon may prove to be an amazing cost and derisking advantage.
I know nothing about their novel Prussian White cathode.
I eagerly await the expert analysis of Northvote's anode and cathode.
The current market need for large local battery store for EV chargers is apparently one of the limiting factors in deploying new chargers, delivering spot excess demand can be provided by either onsite diesel generators (like some rest areas in California are doing now) or a battery bank. The latter is preferable for energy efficiency and maintenance reasons.
Their competitive argument is a fast charging time with a low impact on the life the battery pack, with a full charge under 10 minutes and about 2'000 cycles. They also have a good available power and capacity at 20C discharge rates.
Lithium is worth about $40k per tonne, or $40 per kg. A Tesla power wall 2 is about 150kg, if half of that is lithium, then the lithium alone is worth $2.3k. Powerball costs about $9.5k, so the lithium is a fair portion of the cost.
https://www.thisoldhouse.com/solar-alternative-energy/review...
https://www.statista.com/statistics/606350/battery-grade-lit...
Note, I know raw lithium carbonate is not stuck directly into a battery, just spitballing with the little bit of learning I just did.
Some articles, if you are interested:
https://www.sciencedirect.com/science/article/abs/pii/S09626... https://www.euractiv.com/section/energy-environment/news/fac...
It's not even comparable to sodium, which is abundant practically everywhere.
This estimate is very far off.
1% is closer.
When you think of an application like grid connected energy storage, most of those performance metrics are irrelevant, and the only thing that really matters is cell cost per total energy stored and delivered during its lifetime. We will likely see something over-engineered and simplified to maximize cycle count and minimize cost, leading to a much larger raw material consumption, at the expense of density - the cell is not going anywhere.
So the ability to use dirty cheap ingredients is a game changer for the grid storage market.
an order of magnitude less. 30KWh is just about 3kg of lithium in theory. On practice it would be about 7-10% of the weight of the battery.
For now. But more importantly, there are sovereignty problems to considered in case things get worse in the future. And the quality and usability of the lithium substrate varies quite a bit between suppliers, with the better ones, for now, coming from the less "attractive" suppliers.
So at the PACK level of energy density, which is really all that matters, sodium ion and LFP close much of the gap with nickel-cobalt.
So spitballing here, an NMC chemistry at 240 wk/kg at the CELL level will lose about 20+% ore of density per weight for cooling and safety, so that they will be effectively 160 wh/kg at the PACK level.
Most CATL literature has LFP and sodium ion at 90-95% at the pack level with "cell-to-pack" which bypasses modules and other intermediate packaging.
So if 240 wh/kg NMC chemistry is actually 160 wh/kg at PACK level, and this sodium ion is 160 wh/kg but about 150 wh/kg at PACK level, well then you see the real power of these chemistries.
If the pack level 160-180 wh/kg equates to a 400 mile car, then 140-160 wh/kg sodium ion at pack level equates to a 300+ mile car.
300 miles means a really good city car. It means you can probably do a 50-100 mile PHEV car pretty cheap. It means cheap, limit-is-number-of-factories scaling of EV battery supply.
Sodium ion is supposed to be 40$ or less bill of materials per kw-hr compared to 80-100 for NMC and about 50-70 for LFP. And it should probably drop from there in the long run.
It also means that EVs beat ICEs on drivetrain cost, possibly by a significant margin, which might translate to a 4000$ + price difference from an ICE. Combined with theoretically cheaper maintenance and "fuel" costs, this should translate to an EV cost advantage that people simply won't be able to overlook.
Personally I think there should be an overall "carbon externality charge" of $5000 on a new ICE as well, or something that scales with the carbon inefficiency of the vehicle (so a bigass suburban assault vehicle is like $10000).
Also, note that the roadmap for batteries of CATL, a lot like the roadmap for future nodes in semiconductors so take it with a grain of salt as to when they realize the goals, is for 200 wh/kg sodium ion and 240-260 wh/kg LFP. With superior cell-to-pack density, that should mean a 400 mile car for sodium ion, and a 500 mile car for LFP.
Now, hopefully in 5-10 years we get lithium-sulfur and sodium-sulfur that are AT LEAST 50% more dense with similar materials costs. Then you get to shrink the battery to make the EV even cheaper.
So the revolution is coming, in my opinion. And this isn't just a gee-whiz a faster pc for my Overwatch. This is "future survival of humanity in the balance". We NEED to decarbonize transportation, and we NEED cheap batteries for alternative energy grid storage. The development of these technologies is preservation-of-humanity level of importance, and high density sodium ion chemistries are a major major step towards that because of all the economic and practical levels/needs/requirements they meet/exceed.
Your whole writeup was inspiring and gives me more hope for the future. This part, though, I'm angry about. I'm angry that we don't already have this legislation in some form. I'm sure it will be fought tooth & nail by the big auto manufacturers, but we should do it anyway. Maybe we could tack on higher penalties for anyone caught 'rolling coal', too.
Low efficiency vehicles are taxed on import, and the money raised is returned as rebates on high efficiency vehicles.
A Ford Ranger might attract the full fee, a new t Nissan leaf would get the full credit. A small ICE car attracts a smaller fee. Hybrids are given a smaller credit.
The exact amount of credit varied over time as the fees gathered changed.
Even here in ostensibly progressive Europe, populist parties are riding on "Cheap gas!!!".
Burning a gallon of gas generates 20lbs of CO2 (most of the weight is the O2), so 100 gallons produces a ton. Direct air carbon capture should cost roughly $100 per ton at scale, so the fee should be $1/gallon of gasoline (either at vehicle purchase or at the pump).
That’s completely affordable and lower than current gasoline taxes in many places.
If we made that one change (and funneled the revenue into carbon capture) existing ICE cars could be carbon negative in 5-10 years, and, as we phased them out (because EVs are just better) we’d have a clear path to pre-industrial atmospheric CO2.
> So the revolution is coming, in my opinion.
Yes and: The nascent thermal batteries (box of hot rocks) and advanced geothermal power generation are just now crossing the chasm.
Both tech stacks have been proven, have financing, and initial customers.
And now they're jumping on to the cost learning curve.
Roughly, thermal tech today is where solar and batteries were in the 2000s.
The will be huge because 1/2 of energy consumption ends up as heat. So skip all the middle steps.
We're at most 10 years from the confidence in oil and gas investments being completely shattered. A lot of the investors and engineers will seek out opportunities where they can apply their competence. Geothermal is a good fit. Whoever captures the market first will have the most to gain, so once they see it's even remotely possible there will be a race.
I suspect politicians in countries with oil/gas-development in northern regions will start subsidizing this as well, both to attract voters from workers in that sector, and to help them establish a new competitive industry that they can replace their oil and gas exports with.
The interesting number for stationary storage is, Wh per $. I wonder where how they compare on that (relevant) measure?
I haven't seen it that cheap yet, its got new tech prices at the moment for cells on aliexpress.
National French research agency announcement: https://www.cnrs.fr/fr/cnrsinfo/batteries-sodium-ion-une-pre...
The power tool : https://www.leroymerlin.fr/produits/outillage/outillage-elec...
Unfortunately, all I could found about the Wh/kg efficiency was an article about the same company saying they were currently able to build cells at 90Wh/Kg in 2017.
Nevertheless, it's not a promise, it's a product currently on sale.
I found an article from 2021 where they were claiming 90Wh/kg to 120Wh/kg, and that they would not go beyond that. They argue that their strength is fast charging, not high energy density, with charges to full capacity in less than 10 minutes.
https://www.ecinews.fr/fr/tiamat-energy-lance-la-production-...
As I wrote a few days ago, once charging is below 10 minutes, charging stations work just like gas stations in terms of throughput. We will see gas stations converting directly from gas pumps to chargers. (Unclear if gas pumps can coexist near high-powered chargers; gasoline vapor and high voltage electricity should not be in the same space.)
I'm sure like any battery the charging gets slower over time as the battery warms up, so finding the sweet spot would be nice.
I'd quite like to buy an electric car and select an appropriate power bank based on this.
Also, why do the packs have to be permanent? Why not have the ability to add or remove modular cells as and when needed? Just add the capacity when you need it. Plug the unused cells into your solar array when you aren't using them.
That opens up a few options. Firstly, you can choose to power your house or your car, or of you need to get to work and you forgot to charge, you take the dead cells out and swap a fully charged set in. Leave the dead ones charging at home.
Have a modular system where battery swapping is possible doesnt seem to be a system that EV manufacturers have considered for some reason.
> Sodium is 10 times faster to charge than lithium, and safer because of its low operating temperature. The number of recharging cycles is up to 5 times greater than lithium. Another advantage is that sodium is more widely available and accessible on the planet, and its processing has less impact on the environment.
Sodium ferrocyanide ("Prussian white") was claimed by CATL as well, though they have been supplementing it with lithium in cars for some reason. The cynic in me thinks that the lithium is there to stabilize unfavorable cycling characteristics of the sodium; the optimist hopes it is just because lithium is cheaper at scale right now.
Silly me for expecting that, I guess.
Sadly I can’t find any teardown of the product, it’s all just press reprints.
There’s a split view PDF (in the documents section), it doesn’t seem to show the battery but does not show a huge amount of space for it.
https://chemistry-europe.onlinelibrary.wiley.com/doi/pdf/10....
I can imagine a lot of the weight of the battery unit itself isn't necessarily the battery, if that makes sense.
Intensity(Ah) Less than 1.5
Tension (V) 3.6
Amperage (Ah) 0.7
Edit : the box indicate 0.33 Kg, the 0.5 weight probably include the charger and other parts.
Since batteries involve the migration of ions between electrodes, the much larger size of sodium ions means that the resulting batteries will be both less dense and have less charge cycles than their lithium counterparts, due to the higher volumetric electrode deformation during charging.
This makes them suboptimal for both grid and mobile applications, and the only use case I can see for them is making very cheap disposable stuff, which does not bode well for the environment.
Downsides: somewhat low energy density, somewhat less efficient.
CATL has been producing sodium ion batteries for some time. I think most of those so far end up in cheap Chinese EVs. Relatively few of those have found their way to the European or North American markets yet. Part of the reason is probably the lack of sodium ion battery factories outside of China (so far). It looks like Northvolt is looking to change that.
It's competing with LFP and other battery chemistries. You'd use these mainly for cheap cars and possibly for grid storage.
Charging a lithium battery that is below freezing destroys the battery.
Per a 2023 Nature article: https://www.nature.com/articles/s43017-022-00387-5
> The locations of suitable continental brines are also geographically restricted, with an estimated 50–85% of lithium-rich continental brine deposits located in the Lithium Triangle and with China as the next richest source. Hard-rock ores are also geographically concentrated in Australia and China
Lithium in a form that is economical to mine/process is indeed quite rare. Which is why 3 countries produce 90% of it.
And it is extremely environmentally costly which is treated as an economic externality. It takes 1.9m litres to mine one ton of lithium and solvent chemicals like hydrochloric acid contaminates groundwater, making the entire site toxic and unlivable.
Entire governments have been overthrown for access to this resource.
And yes Sodium is fine for most applications where it can be a little heavier (grid uses, maybe cars) which is where most of it is projected to be needed.
Here's how much of everything we mined in 2022. Lithium is bottom left corner just above Gold.
---
but honestly, what's the deal with same-y headlines about batteries? can we have articles that actually keep observing these technologies as they progress after being invented?
It's not widely touted since the density is not as good, the Northvolt announcement notwithstanding. But the costs apparently are much lower.
This can of course mean that this is a game changer for stationary storage, because density is not as much a concern.
Thank you for your submission of proposed new revolutionary battery technology. Your new technology claims to be superior to existing lithium-ion technology and is just around the corner from taking over the world. Unfortunately your technology will likely fail, because:
[ ] it is impractical to manufacture at scale.
[ ] it will be too expensive for users.
[ ] it suffers from too few recharge cycles.
[ ] it is incapable of delivering current at sufficient levels.
[ ] it lacks thermal stability at low or high temperatures.
[ ] it lacks the energy density to make it sufficiently portable.
[ ] it has too short of a lifetime.
[ ] its charge rate is too slow.
[ ] its materials are too toxic.
[ ] it is too likely to catch fire or explode.
[ ] it is too minimal of a step forward for anybody to care.
[ ] this was already done 20 years ago and didn't work then.
[ ] by the time it ships li-ion advances will match it.
EDIT: actually I just realized I'm describing Wikipedia
I've also seen manufacturers who make 3V or 3.2V cells in AA format, and then supply a dummy AA-shaped link with it, which is just a straight-through connection like a wire. Put one cell and one link in your tool, or two cells and two links.
In the case of bulbs you could get a better form factor, but no one's doing that, they're just using non replaceable bulbs.
Batteries. Are you going to get rid of your TV just so you can use a different battery chemistry? There have been various chemistries available in AA. Would you rather we have even more battery sizes to keep track of?
Review here https://www.bilibili.com/video/BV1c34y1N7NU/
There is always something... Therefore I'll believe it when I'm able to but such battery and fly my drone with it.
Disclaimer: I’m a former Northvolter, but not involved in that program.
For reference northvolt also lists lithium-metal batteries at 395Wh/kg, and they do list the density on that one, 797Wh/L. When they acquired the designer (cubert) back in 2021 they listed the possibility of exceeding 1000Wh/L by 2025 though I don’t know if that’s still in the plans (at the times the cells were only listed at 369Wh/kg as well).
This made me chuckle a little. Thanks!
[0]: https://www.nobelprize.org/prizes/chemistry/2019/summary/
The rest of the power train, suspension, frame, etc matter more these days.
There is a lot of solar and wind electricity wasted in the world because there's no economical way to store it. LiFePO4 batteries are > $100 / kWh, last time I checked; a practical powerwall costs like a small car, and is also a major fire hazard.
We badly need cheap, non-toxic, non-flammable batteries we could deploy massively outside of cars, drones, and phones. The announced battery looks like something that may fit the bill.
Btw. sodium has many desirable properties even in the metal form. You can store it quite efficiently on pallets probably just wrapped in some foil. You would be able to store more than 3 MWh on a single pallet. No battery can match that. It's more like a replacement for stationary diesel generators - but you can recycle the resulting sodium hydroxide solution back to sodium using renewable energy quite easily.
Also sodium reacts with water so readily you could probably get stable current with just ~50 ms of delay, which on the grid would still be considered instantaneous. You don't need any expensive catalysts, spark plugs, pressure nothing. Just a thin film of water on a metal plate and some sodium to push against it.
You can put these huge batteries under your solar arrays and your wind turbines, on the land already paid for. If it's not flammable, you can hide it in a basement.
The sodium extraction process is cool! Metallic sodium is highly flammable though.
sodium-ion is about low cost for stationary applications (grid scale ESS) where weight and size don't matter as much
(French) https://www.cnrs.fr/fr/cnrsinfo/batteries-sodium-ion-une-pre...
Leroy Merlin (the French "big box" home improvement chain) is selling a electric screwdriver that use sodium-ion battery, seems to be working well: (French) https://www.leroymerlin.fr/produits/outillage/outillage-elec...
doesn't seem to be many in stock - it's only available at some stores - but seems to be victim of its success
https://carnewschina.com/2023/11/20/sodium-ion-batteries-are...
- better safety
- same number of cycles as LiFePo
- much better capacity at low temperatures
- protects environment (?)
I would take that with a truckload of salt. Also, price is roughly 50% higher than LiFePo.
On many product images there is an outdoor winter scenery. So performance at very low temperatures seems to be the main selling point.
$/kWh is mainly affected by: material cost, manufacturing cost, cost of safely using it (e.g. shielding but also e.g. fire insurances), replacement cost (lifetime, frequency of repairs, needs full replacement for repairs?, refurbish-ability etc.)
As far as I can tell the material and safety cost should be much and somewhat cheaper, the manufacturing cost is hard to say but initially is likely more expensive as it's a new process and the durability and refurbish-ability are probably major points which will decide weather it's competitive in the vehicle market or not.
For high end e-cars the maximal reach tends to matter a lot, even if for some buyers it only matters in advertisements.
For less high end cars they often anyway compromise on range so it might not matter as much but then in many places (which are not in the US) having small cars matters a lot to a point that sometimes e.g. typical SUVs might not be usable _at all_, and I mean EU style SUVs not US style SUVs (through most times its just very inconvenient). And small cars mean little space for batteries (potential only 50% of the space).
Lastly there are some aspects of different styles of "skateboard chassis" having different usable volumes for battery cells. And some especially save and refurbishable chassis designs come with the penalty of having a bit less volume to use.
So the answer is very dependent on the context.
Too bad he has recently passed, though.
Now the articles "This could be in your next EV sooner than you think." would be already being composed and YouTube videos being edited.
Note that CATL also claimed 160Wh/kg two years ago, but what they will actually be making will probably be closer to 120.
And we are left to only speculate. But, if the other numbers were great, they would have also stated them.
Hope springs eternal.
Matt Ferrell's Undecided Youtube channel just posted a video today going over that technology: https://youtu.be/YJ4pg_exdvs?si=kKNE-yY-Va9xMuBf
Rhombohedral Prussian White as Cathode for Rechargeable Sodium-Ion Batteries
It's notable that it was an ARPA-E funded project and some of the research was done at Lawrence Berkeley National Labs. It's more applied research than basic research as they were specifically looking for a setup that would work with existing battery manufacturing technology.
> "Compared with previous work, the high Na concentration in the new material overcomes the sodium-deficiency problem. We show that it could be directly assembled into a full cell with a hard carbon anode. This is critical for the scalable sodium-ion battery manufacture that is compatible with the current lithium-ion battery infrastructures."
Interesting timeline: from publication of research result to commercial development to deliverable product, ~8 years. Now, would a VC fund think that was a decent turnaround time - I really don't know, any opinions?
In that light, I wonder how this press release should be interpreted.
If those are all good answers ostensibly some viable alternative.