Samsung SDI has entered into a strategic partnership with KGM to co-develop next-generation electric vehicle battery packs designed for higher energy density, longer driving range and faster charging. Announced on December 23, 2025, the collaboration will leverage Samsung SDI’s 46-series cylindrical battery cells and combine both companies’ expertise to advance battery pack technology.
Under the agreement, Samsung SDI and KGM will conduct joint research and development aimed at creating more sophisticated battery systems for future EV models. KGM, a midsized Korean automaker, plans to integrate the newly developed packs into its upcoming electric vehicles, enhancing the performance and appeal of its product lineup.
Samsung SDI’s 46-series cells incorporate proprietary Silicon Carbon Nanocomposite anodes, which reduce electrode swelling and help extend cycle life. The batteries also feature a tabless design that lowers internal resistance and optimizes current flow, improving high-power output and enabling faster charging. In addition, Samsung SDI cites enhanced thermal management and advanced manufacturing processes as key contributors to the cells’ safety and reliability under a wide range of driving conditions.
Both companies said they will exchange technical insights with a mid- to long-term focus and continue joint R&D efforts to develop next-generation battery products. Samsung SDI highlighted that the partnership underscores the competitive performance and quality of its 46-series cylindrical batteries and is expected to support the company’s future growth in the energy storage business.
Key executives from both organizations attended the partnership ceremony, including Choi Ick-kyu, executive vice president and head of the mobile and power battery business at Samsung SDI, and KGM President Kwak Jeong-hyun. A Samsung SDI representative said the collaboration “demonstrates the differentiated technological capabilities of our 46-series cylindrical batteries in both domestic and global EV markets.” KGM’s president added that the alliance would strengthen the company’s ability to respond to rapid changes in the EV battery industry and provide a solid foundation for sustainable growth in global markets.
Source: The Korea Times
