ACC presents the fifth millionth battery cell produced at its French gigafactory
Image: ACC
ACC (Automotive Cells Company) unveiled its fifth millionth lithium-ion battery cell produced in France at the 2026 Paris Auto Show. This battery comes from the Gigafactory in Billy-Berclau/Douvrin in the Hauts-de-France region. The batteries produced so far are sufficient for nearly 40,000 electric vehicles.
In just two years, ACC has significantly expanded its industrial production capacity. The battery cells and modules are now used in eight long-range electric vehicle models from the Stellantis group, including the Peugeot E-3008 and E-5008, Jeep Compass, Lancia Gamma, DS N° 7 and N° 8, Citroën C5 Aircross, and Opel Grandland. ACC supplies Stellantis in accordance with the agreed production plans.
The first production unit of the Gigafactory operates seven days a week on a five-shift basis following the 5×8 model, according to reports, while defect rates continue to approach target levels. In September alone, module production nearly reached the full annual volume for 2025. The production pace will be maintained, with a second manufacturing unit capable of 12.9 gigawatt-hours set to begin producing electric vehicles for the Mercedes Group by 2027.
ACC views European battery production as a crucial element of strategic supply security, the preservation of industrial jobs and technological capabilities, as well as European sovereignty. In light of geopolitical tensions, rising energy prices, economic uncertainty, and climate policy demands, the company calls for the rapid implementation of the Industrial Accelerator Act (IAA). This act is intended to support demand for batteries manufactured in Europe and enhance the competitiveness of European production.
Allan Swan, CEO of ACC who has led the company since May 2026, describes the production of five million battery cells in France as a significant milestone, while also highlighting ongoing challenges related to competitiveness. Founded in 2020, the company is backed by Stellantis, Mercedes-Benz, and Saft, a subsidiary of TotalEnergies, and employs 2500 people at its facilities in Nouvelle-Aquitaine and Hauts-de-France, France. ACC also aims to develop next-generation battery technologies with higher performance, greater practical range, and faster charging times.
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Thomas Langenbucher is an expert in electromobility with professional experience in the automotive industry and finance sector. Since 2011, he has been covering electric vehicles, sustainable technologies, and mobility solutions for ecomento.de. Learn more.
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