Eyeing to deliver longer range, lower costs, and more efficient charging for EVs, GM and LG Energy have jointly developed a new manganese-rich battery technology.
General Motors, in partnership with LG Energy Solution, has announced a breakthrough in electric vehicle (EV) battery technology. The companies have developed a new lithium manganese-rich (LMR) prismatic battery cell aimed at enhancing performance while reducing costs.
According to a report by Automotive Dive, the innovative LMR chemistry replaces costly cobalt with a higher share of manganese. This move allows GM to cut battery production costs while maintaining high energy density.
The automaker says it plans to begin commercial production of the new battery cells in the United States by 2028, focusing on full-size electric trucks and SUVs. It is set to become the first major carmaker to integrate LMR batteries into its EV lineup. The Ultium Cells joint venture with LG Energy will oversee production.
Unlike the current nickel manganese cobalt aluminium oxide (NMCA) cells, which offer long range but are expensive, LMR cells offer a more affordable solution. GM says the new cells contain about 35% nickel, 65% manganese, and almost no cobalt — a substantial cost advantage.
The prismatic design of the LMR battery also enhances energy density by 33% compared to top-performing NMCA and lithium iron phosphate (LFP) cells, while maintaining a similar cost. The batteries will not replace GM’s existing cells but will be used alongside high-nickel and iron-phosphate options to offer a wider range of vehicle choices.
These new cells will help to deliver premium performance at a lower price point, commented Kurt Kelty, GM’s Vice President of Battery, Propulsion and Sustainability.
GM expects its LMR-equipped trucks and SUVs to exceed 400 miles of driving range. The company has been developing the technology for over a decade, with major advances made since 2020. Engineers overcame key durability and performance issues, using proprietary materials and design innovations.
Prismatic cells are also easier to assemble, requiring fewer components than cylindrical batteries. GM says this makes them ideal for large vehicles, helping to reduce both space and cost.
Pre-production will begin in 2027, with full-scale manufacturing to follow after validation at GM and LG facilities.
