GM to Launch US-Made 400-Mile EV Battery in 2028

General Motors, in partnership with LG Energy Solution, plans to commercialize a new lithium manganese-rich (LMR) prismatic battery cell for electric trucks and SUVs, targeting full-scale production in 2028 with pre-production beginning in 2027 at the Ultium Cells joint venture in the US. The LMR chemistry will significantly reduce the use of expensive cobalt and nickel, replacing them with more abundant manganese, resulting in battery packs that cost thousands less while delivering over 400 miles of range. These prismatic cells are designed to halve battery pack complexity and offer up to 33% higher energy density than lithium iron phosphate alternatives, helping GM approach price parity between electric and gasoline vehicles. GM claims to have resolved previous lifespan issues associated with manganese-rich batteries. The initiative also aims to decrease dependence on Chinese supply chains and intellectual property, potentially strengthening GM’s competitive position over rivals like Ford, which plans similar technology by 2030. Industry experts believe this move could accelerate widespread EV adoption by making electric vehicles more affordable.