General Motors and LG Energy Solution have announced what they claim is a breakthrough in battery technology with plans to commercialise lithium manganese-rich (LMR) prismatic battery cells.
These cells are designed for GM’s future electric trucks and full-size SUVs, marking an advancement in the electric vehicle (EV) sector.
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The collaboration aims to position GM as the first automaker to implement LMR batteries in EVs, the company said.
Ultium Cells, a joint venture between GM and LG Energy Solution, is gearing up to commence commercial production of the LMR prismatic cells in the US by 2028, with pre-production activities slated to begin at an LG Energy Solution facility by late 2027.
The final production design will undergo validation at GM’s upcoming Battery Cell Development Center in Warren, Michigan, and LG Energy Solution’s facility.
LMR battery cells are notable for their use of manganese, a more cost-effective material compared to cobalt, which is traditionally used in battery cathodes.
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By GlobalDataThe new LMR prismatic battery cell developed by engineers from both companies boasts a 33% increase in energy density compared to leading lithium iron phosphate (LFP) based cells, while maintaining comparable costs.
Since 2015, GM has been researching manganese-rich lithium-ion battery cells, accelerating the development of LMR cells at its Wallace Battery Cell Innovation Center.
Collaborative efforts have led to advancements in cathode materials, electrolytes, additives, form factors, and cell assembly processes, addressing previous challenges in performance and durability associated with LMR technology.
LG Energy Solution Advanced Automotive Battery division executive VP and head Wonjoon Suh said: “We’re excited to introduce the first-ever LMR prismatic cells for EVs, the culmination of our decades-long research and investment in the technology.
“GM’s future trucks powered by this new chemistry are a strong example of our shared commitment to offering diverse EV options to consumers.”
Also, General Motors reported a loss of $2.96bn for the fourth quarter of 2024, a downturn from a profit of $2.1bn in the corresponding quarter of the previous year.
