Samsung SDI Secures Multi-Billion Dollar Battery Supply Deal with Tesla

South Korea’s Samsung SDI has reportedly reached an agreement with U.S. electric vehicle giant Tesla to supply more than 3 trillion won ($2.11 billion) worth of energy storage system (ESS) batteries over the next three years, according to a report by the Korea Economic Daily. The deal highlights the growing partnership between two major players in the global clean energy and battery industry as demand for sustainable energy storage solutions continues to surge.

The report, citing an unnamed industry source, revealed that Samsung SDI will provide high-performance ESS batteries designed for Tesla’s large-scale energy storage projects. These systems are crucial for stabilizing renewable energy grids and optimizing power supply in electric vehicle charging infrastructure and residential energy solutions. The deal reinforces Samsung SDI’s strategic position as one of the world’s leading battery manufacturers, competing with rivals such as LG Energy Solution, Panasonic, and CATL in the race to dominate the global battery market.

While the reported agreement marks a significant milestone, Samsung SDI stated that “nothing has been decided yet,” suggesting that final details are still under discussion. Tesla, known for its cutting-edge innovations in electric vehicles and renewable energy, has not issued an official comment regarding the reported deal.

If confirmed, the partnership would represent one of the largest ESS battery supply deals in recent years, further strengthening Tesla’s global supply chain for energy products such as the Powerwall and Megapack. With the growing adoption of renewable energy, large-capacity ESS batteries are becoming essential for grid stability and sustainable power storage — areas where both Tesla and Samsung SDI are expanding aggressively.