Ultium Cells LLC, a joint venture between General Motors and LG Energy Solution, has announced it will begin manufacturing lithium manganese rich (LMR) prismatic battery cells at its manufacturing facility near Nashville, Tennessee. The company is expected to become the first manufacturer worldwide to commercially produce this battery technology at scale.
LMR prismatic cells represent a significant technological advancement for GM’s future electric vehicle lineup. According to the announcement, the technology delivers approximately 33% greater energy density compared to lithium iron phosphate (LFP) chemistry, which currently dominates the market as an affordable battery option, while maintaining comparable pricing. The development enables GM to balance performance improvements with cost efficiency across its EV portfolio.
The move reflects GM’s broader manufacturing strategy to match specific battery technologies with particular vehicle and customer requirements. The Spring Hill facility’s ability to produce multiple battery chemistries and form factors will allow the company to optimize battery specifications for different applications. This manufacturing flexibility supports GM’s approach to scaling production efficiently while serving a broader range of customer segments and supporting long-term profitability objectives.
Construction and facility upgrades at the Spring Hill location are slated to begin later this year, with completion expected in 2028. The expansion is projected to generate approximately 500 new jobs at the facility, which currently employs 1,200 workers. Industry observers view the development as significant for maintaining United States competitiveness in global EV and battery technology markets.
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