Taiwanese battery maker ProLogium's Dunkirk plant, Europe's biggest battery project since rival Northvolt's collapse, is being certified to a Chinese spec and may be Europe's most realistic shot at mass production by 2030.
China issued a binding five-year plan on September 28, 2026 setting an initial large-scale deployment target for all-solid-state batteries, according to the official plan text published on the Chinese government's website. The plan calls for preliminary adoption of the technology by 2030, a timeline that puts enormous pressure on manufacturers to accelerate development of a battery type that has long been promised but never delivered at volume.
The stakes for Europe are high. ProLogium, a Taiwanese solid-state specialist, broke ground on a €5.7 billion factory in Dunkirk, France in February 2026. The plant—Europe's largest new electric vehicle battery project since Northvolt's insolvency—is being certified to GB/T 43568-2026, China's first national standard for all-solid-state cells, published in July 2026. The first certified cells are planned for 2028 at 0.8 GWh, scaling to 12 GWh by 2032.
The Dunkirk plant's phased ramp—0.8 GWh in 2028, 12 GWh by 2032—would make it one of the few places outside China producing solid-state cells at meaningful scale. ProLogium's existing Taiwan line, which passed TUV Rheinland certification at 381 Wh/kg, currently produces about 6,000 battery packs per year, roughly 0.5 GWh. The energy density is roughly 30% above the cells found in most electric cars on the road today.
CATL chairman Robin Zeng gave a blunt assessment in June: he rated all-solid-state technology four out of nine on a vehicle-readiness scale, and said reaching million-vehicle scale before 2030 was "very small." CATL, which supplies batteries to most major global automakers, has been notably cautious about solid-state timelines compared with Chinese rivals and government planners.
The GB/T 43568-2026 certification path gives ProLogium a potential structural advantage in accessing Chinese supply chains and materials expertise, while also creating a standards pathway that could shape how solid-state batteries are eventually regulated globally. The European Commission granted a green-light for public funding for the Dunkirk project, clearing the way for state support.
Chinese and South Korean makers dominate European EV battery supply, though the specific percentage figure cited in early reporting on this story remains unattributed to a primary source and should be verified independently. The broader pattern—that Asian manufacturers control the vast majority of Europe's cell capacity—is well-established in industry data.
The constructive question is whether Europe, having lost Northvolt as its flagship domestic champion, can build out sufficient cell capacity through projects like ProLogium's Dunkirk plant before Chinese manufacturers close the cost gap on solid-state technology. China's five-year plan suggests Beijing intends to own the standards and the manufacturing base before anyone else reaches scale.