GM to Mass Produce Prismatic LMR Battery Cells at Tennessee Plant
The new lithium manganese rich cells aim to deliver 33% higher energy density than LFP at a comparable cost.
General Motors and its battery joint venture, Ultium Cells, have announced plans to mass-produce prismatic lithium manganese rich (LMR) battery cells at a facility in Tennessee, marking the first time the company has publicly confirmed the production location for this new chemistry.
What Happened
Ultium Cells, a joint venture between GM and LG Energy Solution, stated on Tuesday that its Spring Hill, Tennessee facility will be the first in the world to mass produce prismatic LMR battery cells. While GM and LG revealed the technology over a year ago, this announcement specifies where manufacturing will occur. Upgrades to the Spring Hill plant are expected to begin later this year and be completed by 2028. The expansion is projected to create an additional 500 jobs, increasing the facility's workforce to 1,700.
According to the company, LMR batteries have the potential to deliver 33% higher energy density than lithium iron phosphate (LFP) cells, which are currently the leading affordable battery technology, while maintaining a comparable cost. GM intends to use these new batteries in upcoming electric trucks and full-size SUVs, with the goal of offering over 400 miles of range.
Why It Matters
The introduction of LMR chemistry positions GM to address the cost-performance gap in the EV market. Kurt Kelty, GM vice president of battery and sustainability, explained that while high-nickel batteries will continue to provide the highest range, "adding LMR positions us to leapfrog today’s more affordable chemistries and deliver lower costs with better performance." Kelty noted that the ability to produce high-nickel, LFP, and LMR cells in both pouch and prismatic forms will allow GM to scale efficiently and support its long-term EV strategy.
This development is significant for consumers seeking affordable long-range options, particularly in the truck and SUV segments. For context, GM's current longest-range EV, the Chevrolet Silverado EV, offers an estimated 478 miles on a single charge using its high-nickel battery and starts at $55,895. The first vehicle featuring the new LMR batteries is expected to launch in 2028.
The Bottom Line
GM is advancing its battery portfolio by committing to the mass production of LMR cells in Tennessee, aiming to balance cost and performance for future electric trucks and SUVs with a projected market launch in 2028.
