GM says new battery chemistry will enable 400-mile range EVs

image via The Verge

May 13, 2025, 2:00 PM

• •GM is partnering with LG to develop lithium manganese-rich (LMR) batteries for its electric trucks and SUVs.
• •The new LMR chemistry is safer, more energy dense, and less costly than current technology.
• •GM plans to start commercial production in the US by 2028, aiming to be the first to deploy LMR batteries.
• •LMR batteries use more manganese, a more affordable and plentiful material, while delivering greater capacity and energy density.

General Motors is collaborating with LG to develop lithium manganese-rich (LMR) batteries for their electric trucks and SUVs. This new battery chemistry is designed to be safer, more energy-dense, and less expensive than current options, aiming to eliminate reliance on expensive and ethically questionable cobalt. GM plans to begin commercial production in the U.S. by 2028, potentially making them the first automaker to use LMR batteries at scale. The use of manganese instead of cobalt offers a pathway to lower EV costs and increased range, with the batteries expected to enable up to 400 miles of range. The cells will be produced by Ultium Cells, a joint venture between GM and LG, starting preproduction in late 2027.

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