Battery cathodes require materials such as cobalt, nickel and manganese, with cobalt being the most expensive. LMR battery cells use a higher proportion of more affordable manganese, while also delivering greater capacity and energy density. Battery engineers at GM and LG Energy Solution have developed a new LMR prismatic battery cell that has a 33% higher energy density compared to the best-performing lithium iron phosphate (LFP) based cells – at a comparable cost.

GM’s electric truck platform has segment-leading range using high-nickel chemistry today. By integrating LMR battery technology and the manufacturing and space efficiency benefits of prismatic cells, GM strives to offer more than 400 miles of range in an electric truck while achieving significant battery pack cost savings compared to today’s high-nickel pack.

“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,” said Wonjoon Suh, executive VP and head of the Advanced Automotive Battery division at LG Energy Solution. “GM’s future trucks powered by this new chemistry are a strong example of our shared commitment to offering diverse EV options to consumers.”

GM began researching manganese-rich lithium-ion battery cells in 2015, accelerating this technology development by prototyping LMR cells at its Wallace Battery Cell Innovation Center in Warren. In collaboration with partners, GM engineers advanced cathode materials, electrolytes, additives, form factors, and cell assembly processes to overcome LMR’s legacy challenges in performance and durability.