Technologies, materials and constraints in one list, because a reader asking what a sector depends on is asking one question. 9 in total.
Technologies
Gigafactory-scale cell manufacturing commercial
Electrode coating, cell assembly and formation run at gigawatt-hour scale on one site. It is the process node rather than a chemistry: the same lines make several chemistries, and what decides whether Europe has cells is whether the lines exist and yield, not which cathode runs through them.
- Readiness
- commercial — Several European sites are producing at scale. PowerCo commissioned Salzgitter on 17 December 2025 and produced the first Unified Cells made in Europe; ACC has been running at Billy-Berclau since 2023 and Verkor opened Bourbourg in December 2025. source (2025-12-17)
- Deployed by
- UniverCell Flintbek, T1 Energy Giga Arctic, Tesla Giga Berlin cell manufacturing, Northvolt Drei, SVOLT Überherrn, Morrow Cell Factory, Northvolt Ett, ACC Termoli, ACC Kaiserslautern, NOVO Energy Gothenburg, PowerCo Salzgitter, AESC Sunderland, Verkor Gigafactory Bourbourg, EVE Power Debrecen, Agratas Bridgwater, AESC Douai, CALB Sines, CATL and Stellantis Zaragoza, AESC Navalmoral de la Mata, Gotion InoBat Batteries Šurany, SVOLT Lauchhammer, Italvolt Scarmagno, LG Energy Solution Wrocław, Sunwoda Nyíregyháza, ACC Billy-Berclau Douvrin, PowerCo Valencia, Britishvolt Blyth, CATL Arnstadt, CATL Debrecen, Samsung SDI Göd, Farasis Bitterfeld-Wolfen, SK On Iváncsa, SK On Komárom
Lithium iron phosphate cells commercial
A cathode of iron and phosphate rather than nickel, manganese and cobalt. Lower energy density and lower cost, and it removes the two metals whose supply is most concentrated outside Europe, which is why it is the chemistry the volume end of the market has moved to.
- Readiness
- commercial — Commercial worldwide and being built in Europe rather than made here at scale yet: the Stellantis and CATL joint venture at Zaragoza is a 50 GWh LFP site targeted to start production by the end of 2026. source (2024-12-10)
- Deployed by
- Morrow Cell Factory, CATL and Stellantis Zaragoza, AESC Navalmoral de la Mata
Nickel-rich cells commercial
Nickel-manganese-cobalt and nickel-cobalt-aluminium cathodes. Higher energy density than iron phosphate and the chemistry most European cell capacity was designed around, at the cost of depending on nickel and cobalt.
- Readiness
- commercial — The chemistry most European lines run. Verkor opened Bourbourg on 11 December 2025 making high-performance cells for Renault and Alpine. source (2025-12-11)
- Deployed by
- Tesla Giga Berlin cell manufacturing, Northvolt Ett, AESC Sunderland, Verkor Gigafactory Bourbourg, AESC Douai, LG Energy Solution Wrocław, ACC Billy-Berclau Douvrin, CATL Arnstadt, Samsung SDI Göd
Sodium-ion cells early-commercial
Sodium in place of lithium in the cell. Lower energy density than either lithium chemistry and it removes lithium from the bill of materials entirely, which is the reason it is on this list: the constraint it answers is supply rather than emissions.
- Readiness
- early-commercial — CATL launched Naxtra as a mass-production sodium-ion cell in April 2025. No European site makes sodium-ion cells, so the readiness is the technology's and not this sector's — which is the gap it is on this list to mark. source (2025-04-21)
- Deployed by
- no tracked project in this sector
Materials
What arrives, what leaves, and what could stand in for it. Every material is a cross-sector node, so each one opens its own page rather than a list of this sector's copy of it.
Constraints
market European cells against imported cells
A European gigafactory has to sell cells against imported ones made at larger scale on longer-amortised lines, and the European cost per kWh has not closed that gap. It is the constraint the sector's failures share: the plants that stopped did not stop for want of a market for batteries, they stopped for want of a price at which their own cells cleared.
Not quantified yet.
Addressed by Gigafactory-scale cell manufacturing, Lithium iron phosphate cells
- relieves iaa:LM-15a×1The only provision in the register that puts an origin requirement on battery storage by name, on the buying side. It does not lower a European cost per kWh; it removes part of the demand a cheaper imported cell can compete for.
- relieves iaa:LM-26a×0.5The same instrument reaching the cell through the vehicle it sits in rather than through the cell itself, and weighted for that distance: a purchase scheme buys a car, and the origin requirement it applies is a requirement about the car.
- relieves nzia:SCH-01×0.5Purchase subsidies have to be designed so that a resilient supply counts, either by paying more for it or by making it the condition of eligibility. It is a criterion rather than a volume, which is why it sits below the procurement rules.
technical Ramping a cell line to yield
Building a gigafactory and running one are different problems. A cell line reaches its nameplate only when scrap falls far enough for the plant to earn, and the interval between commissioning and that point is where European projects have most often failed. It is a technical constraint with a financial deadline: the capital is spent before the yield arrives.
Not quantified yet.
Addressed by Gigafactory-scale cell manufacturing
- relieves ets:FND-03×0.5The register reaches the financial deadline on this constraint and not the constraint itself: Innovation Fund money is capital during the interval between commissioning and yield, and three of the sites here hold a grant from its first Battery Call. Nothing in the register reaches scrap rates.
market Committing capacity against uncertain vehicle demand
A cell factory is sanctioned years before the vehicles it supplies are sold, on a forecast of how fast Europe electrifies. When that forecast moves, the capacity is already half-built. It is the reason given for the largest pauses in the sector, and it is the constraint the fleet CO2 standards act on from the other side — the same rule that makes the demand is what makes the forecast a policy question rather than a commercial one.
Not quantified yet.
Addressed by Gigafactory-scale cell manufacturing
- relieves fleet:TGT-2035×1The one provision that removes the demand question rather than answering it: a 100% reduction on the tailpipe measure means a new car sold in the Union carries a battery, so a factory sanctioned against it is sanctioned against a legal deadline rather than against a forecast.
- relieves fleet:TGT-2030×0.5The step before it, and the one inside the horizon of a factory being built now — the fleet has to be halfway there five years before the full target bites.
- relieves fleet:PREM-01×0.5The price of missing the target, which is what turns it from an aspiration into a procurement decision. It is money out of a carmaker rather than money into a cell maker, which is why it is weighted below the targets it enforces.
infrastructure Cell capacity without the materials behind it
A European cell works still buys most of its cathode and anode material from outside Europe, so onshoring the cell does not by itself onshore the supply chain. The perimeter of this dataset makes the same point from the other direction: cathode, anode, separator and electrolyte works are outside it, and there are very few of them here to hold.
Not quantified yet.
Addressed by Lithium iron phosphate cells, Sodium-ion cells
- relieves crma:CBEN-01×1The benchmark that answers this constraint directly: extraction, processing and recycling capacity inside the Union for each strategic raw material, which is what a cathode works needs upstream of it. It is a benchmark on the Union rather than a duty on anybody's factory, and it is dated.
- relieves crma:CBEN-02×0.5The other half of the same article, and the one that concedes the material will still be imported: it caps how much of it may come from any one country rather than moving the supply into Europe.
- relieves crma:CSP-02×0.5The route by which a particular materials project gets built: recognition brings shortened permitting and access to finance to the works that would sit upstream of these sites.