Europe keeps signing battery deals. Closing the gap with Asia is the harder part, and the joint venture between CATL and Stellantis is the continent’s latest, biggest attempt to do it. The two companies broke ground on a 4.1 billion euro lithium iron phosphate gigafactory in Zaragoza, in Spain’s Aragon region, one of the largest single commitments to domestic battery manufacturing Europe has made.
Inside the Zaragoza battery gigafactory deal
The plant is sized for up to 50 GWh a year, which translates to batteries for several hundred thousand vehicles depending on pack size. LFP chemistry is the deliberate choice here. It’s cheaper and more durable than the nickel-rich cells that dominated the last decade, and it’s the format winning the affordable-EV segment Stellantis needs to defend in Europe. CATL brings the cell technology and manufacturing know-how; Stellantis brings the offtake. That pairing, the world’s largest battery maker with a global automaker buyer, is the structure European policymakers have wanted for years.
Why the build schedule is the real story
The owners say Zaragoza will operate carbon-neutral, leaning on Aragon’s solar and wind capacity, and they’re targeting first production by the end of 2026. That timeline is the ambitious part. Cell plants are notoriously hard to commission, and Europe’s track record on hitting battery startup dates is mixed at best. Building the shell is one thing. Getting yield up to spec on a new line is where schedules usually slip.
Still, the direction is clear. Between this project and the gigafactories already anchoring the map, like the Tesla plant outside Berlin, Europe is trying to manufacture its way out of import dependence one megasite at a time. Zaragoza is the boldest line in that effort so far. Whether it produces a cell on schedule is the question worth watching.
External reference: BatteryTech Online on the Zaragoza groundbreaking.