"Solid-state batteries for electric vehicles are slowly coming out of the lab and inching towards reality. Korean EV battery giant SK On, a supplier to Hyundai, Kia, Ford and Nissan, among others, said on Monday that it had opened its first pilot production line for solid-state batteries in the city of Daejeon, with plans for commercialization by the end of the decade."
"For more than a decade, scholars and industry experts have referred to solid-state batteries as the "holy grail" of battery technology in several published scientific papers. But industry experts also warned that the technology was too theoretical, and scaling up is a massive challenge. Still, automakers and battery companies have continued their research and development and are getting closer to commercialization."
SK On has opened a pilot production line for all-solid-state batteries in Daejeon and aims for commercialization by the end of the decade. The facility will produce prototype cells for assessment and validation and uses a unique automated electrode manufacturing process. SK On is collaborating with Colorado-based Solid Power on cell development. The company reports current cell-level energy density of about 800 Wh/L, compared with 400–500 Wh/L for nickel-based lithium-ion cells, and projects eventual all-solid-state cells could reach 1,000 Wh/L. Solid electrolytes offer improved fire resistance, higher energy density, and faster charging, though scaling remains a significant challenge.
Read at InsideEVs
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