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GM, LG to make lower-cost EV battery cells in Tennessee

By Thomson Reuters Sep 29, 2026 | 11:21 AM

By Kalea Hall

DETROIT, Sept 29 (Reuters) – General Motors and battery partner LG Energy will upgrade their ​Tennessee plant to make lower-cost ‌battery cells, the companies said Tuesday.

The Ultium Cells joint-venture plant will be upgraded beginning later this year to manufacture lithium ‌manganese-rich (LMR) ​prismatic battery cells ⁠for future GM ⁠electric vehicles. Construction is expected to be completed in 2028, though the companies did not disclose when ​the cell production will begin.

• GM has previously said its goal ⁠was to start ⁠commercial production of LMR cells ​for future EVs at a U.S. ​facility in 2028.

• The LMR cells ‌are expected to have the potential to deliver 33% higher energy density than lithium iron phosphate (LFP) cells, ⁠another lower-cost battery chemistry that many automakers have gravitated to.

• The expansion at the ⁠Tennessee ‌plant is projected to ⁠create 500 new jobs.

• The ​Tennessee ‌plant currently makes LFP battery ​cells ⁠for energy storage systems.

• GM’s battery leader has said the automaker may ditch a plan for LFP cells to focus on LMR instead.

(Reporting by ​Kalea Hall)