Solid-State Batteries Go into Mass Production
ProLogium Begins Mass Production in Taiwan
ProLogium has initiated the mass production of all-solid-state cells in Taiwan, achieving a density of 381 Wh/kg, as verified by TUV Rheinland. This breakthrough is significant as it surpasses the energy density of most current electric vehicle (EV) batteries, which typically range between 200-300 Wh/kg.
Key Highlights:
- Energy Density: ProLogium’s Gen 3.5 lithium ceramic cell has an impressive energy density of 381 Wh/kg, a substantial improvement over existing nickel-manganese-cobalt and lithium iron phosphate batteries.
- Testing and Certification: The cell was tested against China’s GB/T 43568-2026 standard to ensure it meets the criteria for true all-solid-state cells. It demonstrated excellent stability, losing only 0.05% of its mass in a vacuum at 120°C.
- Production Scale: While the Taoyuan line produces 0.5 GWh annually (approximately 6,000 packs of 80 kWh), this is a significant step forward for solid-state battery technology.
European Expansion and Comparison with Northvolt
ProLogium’s European expansion includes a substantial gigafactory in Dunkirk, France, aided by French subsidies and located near the Gravelines nuclear plant. However, the project has faced delays, contrasting with the recent bankruptcy of Europe’s leading battery manufacturer, Northvolt.
- Dunkirk Gigafactory: Groundbreaking for the Dunkirk plant occurred on February 10, 2026, with plans to produce 4 GWh initially, scaling up to 44 GWh by 2032.
- Comparison with Northvolt: Northvolt’s collapse left a void in Europe’s battery manufacturing capabilities, with smaller efforts attempting to fill the gap. ProLogium’s French venture is now the largest new cell project in the region.
Conclusion
The development of solid-state batteries, particularly by ProLogium, offers a promising future for higher energy density and improved performance in EV technology. However, the question remains whether these advancements can be scaled sufficiently to meet Europe’s growing demand for electric vehicles in time.