Mercedes-Benz Secures Priority Access to ProLogium's Advanced Solid-State Battery Cells for EVs







In a significant stride towards the future of electric mobility, Mercedes-Benz has solidified its partnership with ProLogium, gaining exclusive first rights to the highly anticipated Gen4 Superfluidized Inorganic Lithium Ceramic Battery cells. This strategic move positions Mercedes-Benz at the forefront of automotive innovation, promising to redefine performance and efficiency standards for electric vehicles.
Mercedes-Benz Forges Ahead in EV Battery Technology with ProLogium Partnership
On a momentous Thursday, September 24, 2026, Mercedes-Benz officially announced a groundbreaking joint testing agreement with ProLogium. This collaboration marks a pivotal moment in the evolution of electric vehicle technology, granting the German automotive giant priority access to ProLogium's revolutionary Gen4 solid-state battery cells. These advanced cells, boasting remarkable energy density and ultra-fast charging capabilities, are set to undergo rigorous evaluation at specialized external testing institutes and dedicated facilities, focusing on their electrical, thermal, and safety performance.
ProLogium's Gen4 platform is specifically engineered to address the critical challenges associated with bringing solid-state batteries to the commercial market. The design prioritizes scalable manufacturing processes and a competitive cost structure, ensuring that this next-generation technology can be widely adopted. The battery architecture, featuring a non-flammable inorganic electrolyte, a ceramic separator, and ProLogium's proprietary safety mechanisms, promises superior performance across various conditions, including rapid charging, high power output, and exceptional functionality in cold climates. This latest development builds upon a decade-long collaboration between Mercedes-Benz and ProLogium, which began in 2016, progressing from early hybrid-solid-state battery concepts to the current cutting-edge Gen4 cells.
Beyond the laboratory, ProLogium is actively scaling up its production capabilities. Following the inauguration of its first GWh-class gigafactory in Taiwan in May 2024, the company broke ground on a second, even larger facility in Dunkirk, France, in February. The initial phase of the French plant is projected to achieve an annual production capacity of 4.0 GWh by 2030, with a long-term vision of reaching an impressive 44 GWh upon full operational status. These facilities will produce solid-state cells that boast an energy density of up to 400 Wh/kg and can charge from 5% to 80% in a mere 6.4 minutes, as validated by independent TÜV test reports. Furthermore, ProLogium's Gen 3.5 Lithium Ceramic Battery is already in mass production, demonstrating gravimetric energy density of 381 Wh/kg. The company's strategic merger with Translational Development Acquisition Corp (SPAC) in May 2026, slated for finalization by the end of 2026, will see ProLogium listed on Nasdaq under the ticker symbol PRLG, providing crucial capital for its commercialization efforts. While Mercedes-Benz also collaborates with US-based Factorial Energy, aiming for its first production EV with solid-state batteries by 2030, the race to market is intensifying, with competitors like China's BYD planning launches as early as 2027.
This pioneering alliance between Mercedes-Benz and ProLogium represents a crucial leap forward in the automotive industry's electrification journey. The pursuit of solid-state battery technology is not merely about incremental improvements but a fundamental shift towards safer, more efficient, and longer-lasting electric vehicles. As these advanced batteries move from advanced development into mainstream production, consumers can anticipate a new era of electric mobility characterized by enhanced performance and reliability, ultimately accelerating the global transition to sustainable transportation.