LG-GM venture upgrades US plant for EV batteries
Ultium Cells, a joint venture between LG Energy Solution and General Motors, will upgrade its Tennessee plant to produce lithium manganese-rich (LMR) batteries, offering 33% higher energy density than LFP batteries at a comparable cost. The $1 billion investment by 2030 will create 500 jobs and expand the plant's output for EVs and energy storage. LMR batteries use less expensive metals like cobalt, helping reduce costs. Production is expected to start in 2028.
How this was made

The 30-second read
Why it matters
The upgrade positions both companies to meet growing EV demand with a cheaper, higher‑energy battery chemistry, potentially improving earnings outlooks.
Market read
First‑of‑its‑kind LMR battery production in the US could shift competitive dynamics in the EV battery market.
What to watch
Potential regulatory or supply‑chain delays for manganese and other raw materials could slow rollout.
Background
The article reports the first public disclosure of the plant upgrade and LMR battery production plan by the LG‑GM joint venture.
Ticker impact
GM's Ultium Cells joint venture will upgrade its Tennessee plant to mass‑produce new LMR batteries, a first in the world.
likely upward pressure as investors price in improved battery supply and cost advantages
The $1 billion investment and first‑of‑its‑kind production are material for GM's EV rollout.
Market effects
Strengthens US EV battery supply chain, may boost broader EV and energy‑storage sectors.
Adds significant manufacturing capacity in the US Southeast, supporting regional job growth.
Sets a new benchmark for LMR battery technology, influencing global battery competition.
Counterpoint
If LMR cells fail to achieve cost targets, the investment could become a sunk cost and weigh on margins.
Key entities
- Joint VentureUltium Cells
Battery JV between LG Energy Solution and General Motors.
- Manufacturing PlantSpring Hill Facility
Tennessee plant slated for LMR battery production.




