Mercedes locks in priority for ProLogium Gen4 cells — SkimNews

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- Mercedes-Benz secured priority access to ProLogium's Gen4 solid-state battery cells under a new joint test agreement announced Thursday, with testing to cover electrical, thermal, and safety performance at specialized external institutes.
- ProLogium's Gen4 cells deliver energy density up to 400 Wh/kg and ultra-fast charging from 5% to 80% in 6.4 minutes, using a non-flammable inorganic electrolyte and ceramic separator to address cold-weather performance and safety.
- ProLogium opened its first GWh-class gigafactory in Taiwan in May 2024 and broke ground on a second plant in Dunkirk, France in February, scaling to 44 GWh of annual capacity when fully operational by 2030.
- ProLogium is merging with SPAC Translational Development Acquisition Corp to list on the Nasdaq under ticker "PRLG" by end of 2026, calling itself "the only company globally that can publicly demonstrate a solid-state battery mass-production line."
- Mercedes expects its first production EV powered by solid-state batteries by 2030 — three years after China's BYD plans its own solid-state EV launch as soon as 2027 — while also partnering with US-based Factorial Energy.
Why it matters: Mercedes secures a priority lane on ProLogium's Gen4 solid-state cells — which ProLogium says is the only publicly operating solid-state mass-production line — but won't put them in a production EV until 2030. That three-year gap gives Chinese rival BYD, targeting a 2027 solid-state launch, a chance to reach market first.
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