daily · Electrification

Ultium Cells plans LMR battery production at Tennessee plant

GM says its Ultium Cells venture plans to make lithium manganese rich prismatic cells at Spring Hill, Tennessee. The company expects facility upgrades by 2028 and projects 500 additional jobs; commercial production has not begun.

By Greener Numbers Editorial Team · Published September 30, 2026 · Updated 9/30/2026

Ultium Cells, the joint venture between General Motors and LG Energy Solution, announced on September 29 that it plans to make lithium manganese rich (LMR) prismatic battery cells at its Spring Hill, Tennessee plant. GM says the plant's construction and facility upgrades will start later this year and are expected to finish in 2028. The expansion is projected to create 500 jobs in addition to the facility's current 1,200 workers. Those are plans and projections, not jobs already filled or cells already in commercial production. GM expects Ultium Cells to be the first manufacturer globally to produce this chemistry commercially, but that milestone is not yet established. GM says its LMR cell technology is designed to offer 33% greater energy density than lithium iron phosphate chemistry at a comparable cost; this is a company design claim, not an independent finding about a finished pack or vehicle. The company says multiple cell chemistries and form factors would help it match batteries to different future EVs. For consumers, any range or vehicle-price effect remains to be shown when the planned cells reach production and cars.

Source: General Motors, September 29, 2026, https://news.gm.com/home.detail.html/Pages/topic/us/en/2026/sep/0929-ultium-cells-lmr-tennessee.html

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