Mercedes gets priority access to ProLogium Gen4 cells — SkimNews
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- Mercedes-Benz secured first rights to ProLogium's Gen4 Superfluidized Inorganic Lithium Ceramic Battery cells, extending a partnership that dates to 2016 and covering multiple validated formats including pouch and prismatic cells.
- ProLogium's Gen4 cells deliver energy density up to 400 Wh/kg and ultra-fast charging from 5% to 80% in 6.4 minutes, while using a non-flammable inorganic electrolyte and ceramic separator.
- A TÜV test report confirmed ProLogium's 185.4 Ah Gen 3.5 large-format cell hit 381 Wh/kg gravimetric energy density; the Gen 3.5 line is now in mass production at ProLogium's Taiwan gigafactory.
- ProLogium broke ground on a second gigafactory in Dunkirk, France in February, with phase one targeting 4.0 GWh annual capacity and a full buildout of up to 44 GWh expected by 2030.
- ProLogium agreed to merge with Translational Development Acquisition Corp, with shares expected to list on the Nasdaq under ticker "PRLG" by the end of 2026.
- Mercedes separately tested Factorial Energy's solid-state cells in a modified EQS that drove over 745 miles on a single charge last September, signaling a multi-supplier strategy.
- Mercedes targets launching its first production EV with solid-state batteries by 2030, while China's BYD plans to introduce its first solid-state battery EV as soon as 2027.
Why it matters: Mercedes gets priority access to ProLogium's Gen4 cells ahead of competitors, but its 2030 production EV target trails BYD's 2027 timeline by roughly three years — giving Chinese rivals a solid-state head start in the premium segment. ProLogium's SPAC merger and end-of-2026 Nasdaq listing give the Taiwanese firm public-capital fuel as it scales from 4.0 GWh to 44 GWh in Dunkirk.
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