WASHINGTON—General Motors Co. and LG Energy Solution Ltd said Friday they are investing another $275 million in their Tennessee joint venture battery cell plant to increase production by more than 40 percent.
The new investment in the Ultium Cells Spring Hill plant will boost battery output from an annual capacity of 35 gigawatt-hours to 50 GWh, when the plant is operational in late 2023. It is one of at least four U.S. joint venture battery plants planned to supply GM electric vehicles as the largest U.S. automaker ramps up production.
