Ultium Cells has officially begun producing lithium iron phosphate (LFP) battery cells at its Spring Hill, Tennessee facility, expanding the joint venture’s manufacturing footprint beyond electric vehicles and into the rapidly growing energy storage sector. The move positions the General Motors and LG Energy Solution partnership to capitalize on increasing demand for stationary battery systems while broadening its manufacturing capabilities.
The Spring Hill plant now produces LG Energy Solution’s JF2 LFP battery cells for energy storage systems (ESS). According to Ultium Cells, the facility converted part of its existing production capacity to LFP manufacturing in less than five months. The battery cells will supply LG Energy Solution Vertech’s U.S.-made energy storage systems, which satisfy domestic content requirements.
“The start of LFP production for ESS at Ultium Cells Spring Hill shows our expanded capabilities,” said Injae Pahk, President of Ultium Cells. “By leveraging LG Energy Solution’s advanced battery technology and the outstanding dedication of our Tennessee team, we’ve successfully established ESS production capability with speed, flexibility, and a strong commitment to safety, quality, and productivity.”
Unlike the nickel-rich battery chemistries commonly used in many EVs, LFP cells emphasize durability, lower cost, and long service life, making them well-suited for stationary energy storage. Those systems store electricity until utilities or customers need it, helping stabilize the electric grid during periods of peak demand. They also provide backup power and support the growing energy requirements of AI data centers, whose fluctuating power consumption can strain conventional grid infrastructure.
Ultium Cells says the start of LFP production reflects the flexibility of the Spring Hill operation while reinforcing its long-term manufacturing strategy. As production ramps up, the company has returned all team members at the facility to active employment to support ongoing operations and future growth.
“Launching LFP production reflects the strength of the partnership between LG Energy Solution and GM and reinforces our confidence in the long-term growth potential of advanced battery manufacturing across the broader Ultium Cells network,” said Chris Desautels, plant director of Ultium Cells Spring Hill. “Ultium Cells is playing a key role in helping companies deploy ESS in support of the power grid and a variety of strategic technology applications.”
While GM continues expanding its EV portfolio, Ultium Cells now adds another business segment to its operations. The Spring Hill facility’s new production line underscores how battery manufacturing can serve both transportation and energy infrastructure as demand for grid-scale storage continues to increase across North America.
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