SEOUL—General Motors Co. and Samsung SDI plan to invest more than $3 billion to build a new battery cell manufacturing plant in the United States that is targeted to begin operations in 2026.

“GM’s supply chain strategy for EVs is focused on scalability, resiliency, sustainability and cost-competitiveness. Our new relationship with Samsung SDI will help us achieve all these objectives,” says GM Chair and CEO Mary Barra. “The cells we will build together will help us scale our EV capacity in North America well beyond 1 million units annually.”

The plant will have more than 30 gigawatt-hours of capacity and will bring GM’s total U.S. battery cell capacity to about 160 gigawatt-hours when it is at full production.

The companies plan to jointly operate the facility, and it is projected to have production lines to build nickel-rich prismatic and cylindrical cells.

According to Doug Parks, GM executive vice president for global product development, purchasing and supply chain, the joint venture will leverage the capital and technology of both companies to create new competitive advantages for GM.

“We will continue to scale production and optimize the chemistry of our pouch cells for performance, range and cost using new approaches pioneered at GM’s Wallace Battery Center and by our technology partners,” he says. “The introduction of new cell form factors will allow us to expand into even more segments more quickly and integrate cells directly into battery packs to reduce weight, complexity and costs. With multiple strong cell partners, we can scale our EV business faster than we could going it alone.”

The Ultium Platform was strategically designed to accept multiple cell form factors and chemistries. For example, in China, the Cadillac LYRIQ is powered by prismatic cells applied to the same battery packs used in the U.S.