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2w ago

GM and LG Announce U.S. Production Plans for New Manganese-Rich EV Batteries

The lithium manganese-rich (LMR) prismatic cells promise over 400 miles of range and cost parity with LFP batteries, targeting commercial deployment in 2028.

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Overview

  • GM and LG Energy Solution confirmed plans to produce LMR prismatic battery cells in the U.S. by 2028, focusing on electric trucks and SUVs.
  • The new LMR chemistry reduces cobalt to 0–2% and increases manganese content to 60–70%, significantly lowering costs and reliance on critical metals.
  • Prototyped cells have been tested for 1.5 million miles of EV driving, with 33% higher energy density compared to LFP batteries at a comparable cost.
  • The design reduces battery pack complexity by 50%, cutting weight and enhancing efficiency for larger EVs like the Chevrolet Silverado and Escalade IQ.
  • GM’s investment in local manganese processing and its partnership with LG aim to strengthen U.S. supply chains and advance domestic battery innovation.