Samsung SDI Advances ASSB Commercialization Through Trilateral Testing Collaboration
15. January 2026Samsung SDI has entered a trilateral agreement with Germany’s BMW Group and U.S.-based Solid Power to advance the validation of all-solid-state batteries (ASSBs). As part of the project, Samsung SDI will provide ASSB cells using Solid Power’s solid electrolyte technology, which enhances energy density and safety. BMW will be responsible for developing battery modules and packs, integrating the cells into its upcoming evaluation vehicles. The three companies will jointly conduct specific testing to assess battery performance under predefined conditions. Many products related to e-mobility usually require specific testing and requirement management in order to be approved for import and sale in Korea.
Compared to conventional lithium-ion batteries, ASSBs utilize solid electrolytes, offering higher energy density and improved safety, which support longer driving ranges without increasing system weight. The collaboration is seen as a strategic move to build a robust global value chain, bringing together Samsung SDI’s battery expertise, BMW’s automotive capabilities, and Solid Power’s material technologies. Samsung SDI, which launched Korea’s first pilot ASSB production line at its Suwon R&D Center in 2023, is currently testing prototypes with several clients. The company is also scaling up cell sizes and refining manufacturing and supply chain processes in preparation for mass production. With demand for ASSBs expanding into fields such as robotics, Samsung SDI is engaging with new potential partners to drive further commercialization.
Also read our related article “South Korea introduces Government-Led EV Battery Certification and Tracking“
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