General Motors Just Took A Big Step Towards Its Next-Gen EV Battery
General Motors (GM) announced its next-gen lithium-manganese-rich (LMR) batteries will be mass-produced at its Ultium Cells plant in Spring Hill, Tennessee, starting in 2028. The LMR batteries, developed with LG Energy Solution, are expected to offer 33% more range than current lithium-iron-phosphate (LFP) batteries and will be used in GM's full-size trucks and SUVs, delivering over 400 miles of EPA range.
How this was made

The 30-second read
Why it matters
The move aims to close the range gap for GM's large EVs while keeping costs comparable to LFP, potentially improving market share in the truck/SUV segment.
Market read
First disclosure of GM's LMR battery production location, a material step for its EV strategy with potential long‑term stock impact.
What to watch
Supply chain constraints for manganese and the need for new cell‑manufacturing tooling could delay rollout.
Background
GM's Ultium Cells JV with LG Energy Solution currently produces LFP cells; the LMR announcement expands its battery portfolio.
Ticker impact
GM announced its Ultium Cells joint venture will mass‑produce next‑gen lithium‑manganese‑rich (LMR) batteries at the Spring Hill, Tennessee plant, the first disclosed production location for this technology.
likely upward pressure as investors price in the technology advantage and long‑term EV growth.
First‑time disclosure of a dedicated LMR production line signals a material step in GM's EV strategy, which analysts view as a catalyst for future earnings.
Market effects
Highlights a shift toward higher‑manganese chemistries, may pressure competitors still reliant on LFP or NMC cells.
Boosts the Tennessee manufacturing footprint and could attract related supply‑chain investments in the U.S.
Sets a new benchmark for prismatic LMR cells, potentially influencing global EV battery roadmaps.
Counterpoint
If LMR cells fail to deliver cost or range benefits, GM could face higher R&D spend without clear upside.
Key entities
- CompanyGeneral Motors
US‑listed automaker (ticker GM) developing next‑gen EV batteries.
- CompanyLG Energy Solution
Partner in the Ultium Cells joint venture.

