【375Wh/kg! 4C! -30°C! European Auto Giant's Solid-State Battery Successfully Passes Automotive-Grade Certification】Recently, the FEST® solid-state battery, jointly developed by European auto giant Stellantis and US startup Factorial Energy, has successfully passed automotive-grade certification. It is understood that the FEST® solid-state battery has a capacity of 77Ah and an energy density of 375Wh/kg, theoretically enabling EVs to achieve a driving range exceeding 1,000 kilometers. After 600 charge-discharge cycles, it still retains over 90% of its capacity, meeting automotive-grade durability standards. With a high-power 4C discharge rate, it can charge from 15% to over 90% in just 18 minutes at room temperature, instantly releasing strong power to meet the demands of high-performance electric muscle cars. Additionally, it offers all-weather adaptability, maintaining stable output in extreme temperature ranges from -30°C to 45°C, solving the driving range challenge in northern winters.