Solid-state batteries just went into mass production. The line makes 6,000 packs a year
ProLogium says it has begun mass-producing all-solid-state cells in Taiwan at 381 Wh/kg, verified by TUV Rheinland and tested against a Chinese all-solid-state standard. Its subsidised Dunkirk gigafactory broke ground in February and its published staging starts at 0.8 GWh in 2028, in a Europe that has already lost Northvolt.
ProLogium says it has begun mass-producing all-solid-state battery cells in Taiwan, InsideEVs reported. Its Gen 3.5 lithium ceramic cell was measured by TUV Rheinland at 381 Wh/kg and 903 Wh/L.
That is roughly 30% above the nickel-manganese-cobalt cells in most electric cars today, which top out near 300 Wh/kg. Lithium iron phosphate sits between 150 and 200.
UL Solutions tested the cell under China’s GB/T 43568-2026 standard, introduced in July to separate true all-solid-state cells from ones still carrying liquid electrolyte. It lost under 0.05% of its mass in a vacuum at 120C, against a 0.5% ceiling.
Scale is...
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