Ultium Cells LLC, a joint venture between General Motors and LG Energy Solution, announced plans to manufacture lithium manganese rich (LMR) prismatic battery cells at its manufacturing facility near Nashville in Spring Hill, Tennessee. The company is positioned to become the first global manufacturer to commercially produce this next-generation battery technology at scale.
LMR prismatic cells represent a significant advancement in battery chemistry for electric vehicles. The technology is engineered to deliver energy density approximately 33 percent higher than lithium iron phosphate (LFP) chemistry, which currently dominates the affordable battery segment, while maintaining comparable cost structures. This positions the battery as a competitive middle ground between today’s less expensive LFP options and higher-performance alternatives, offering improved performance without proportional cost increases.
The addition of LMR production capability enhances Ultium Cells’ manufacturing flexibility, enabling the facility to produce battery cells across multiple chemical compositions and physical designs. This versatility allows the manufacturer to customize battery technology according to the specific requirements of different vehicle platforms and use cases, supporting General Motors’ broader strategy to match appropriate battery solutions to diverse customer needs.
Construction and facility modifications at the Spring Hill location are scheduled to begin later this year, with completion targeted for 2028. The expansion project is anticipated to generate approximately 500 new employment positions, supplementing the facility’s existing workforce of 1,200 employees. Industry observers view the development as a significant step in maintaining American competitive advantage within the global electric vehicle and battery manufacturing sectors.
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