Samsung SDI and KG Mobility Partner to Develop Next-Generation Cylindrical Battery Packs for Electric Vehicles – EQ
In Short : Samsung SDI and KG Mobility have formed a strategic alliance to jointly develop cylindrical battery packs for future electric vehicles. The collaboration focuses on advanced 46-millimeter cylindrical cells, aiming to improve energy density, safety, and performance. This partnership reflects a broader industry shift toward deeper OEM–battery maker cooperation for next-generation EV platforms.
In Detail : Samsung SDI and KG Mobility have entered into a strategic partnership to co-develop cylindrical battery pack technology for future electric vehicles. The agreement marks a significant move beyond a traditional supplier relationship, emphasizing joint research, design, and validation to meet evolving EV performance and safety requirements.
The collaboration centers on Samsung SDI’s latest 46-millimeter cylindrical battery cells, which are designed to deliver higher energy density and improved thermal stability. These cells represent a new generation of cylindrical formats that aim to balance performance, durability, and scalability for mass-market and premium EVs alike.
Under the alliance, both companies will work closely on battery pack architecture, integrating cells into optimized modules and systems. Joint testing and verification processes will ensure that the packs meet stringent automotive safety standards while maintaining reliability under real-world driving conditions.
Cylindrical cells are gaining renewed attention in the EV industry due to their structural strength and efficient heat dissipation. Compared to pouch or prismatic formats, larger cylindrical cells can offer consistent performance, better thermal control, and potentially faster charging when combined with advanced materials.
Samsung SDI plans to leverage its proprietary battery technologies, including high-nickel cathodes and silicon-carbon composite anodes, to enhance driving range and battery lifespan. These material innovations are intended to support higher energy density without compromising safety or long-term stability.
For KG Mobility, the partnership provides access to advanced battery solutions tailored to its future electric vehicle lineup. By participating in early-stage development, the automaker can better align battery performance with vehicle design, efficiency targets, and customer expectations.
The alliance also reflects a broader trend in the global EV market, where automakers and battery manufacturers are forming deeper strategic collaborations. Such partnerships aim to accelerate innovation, reduce development cycles, and secure stable supply chains amid intensifying competition.
In addition to near-term product development, the agreement outlines long-term cooperation between the two companies. This includes ongoing information sharing, coordinated technology roadmaps, and potential collaboration on future energy storage solutions beyond current EV platforms.
Overall, the Samsung SDI–KG Mobility partnership strengthens both companies’ positions in the rapidly evolving electric mobility landscape. By jointly advancing cylindrical battery pack technology, they aim to deliver more efficient, reliable, and competitive electric vehicles for global markets.
