TL;DR
GM opened a 500,000-square-foot Battery Cell Development Centre to bridge R&D and factory production for its new LMR battery chemistry. If successful, LMR could cut EV battery costs by $6,000 per vehicle and reach trucks by 2028.
Hidden among the landmarks of General Motors’ Warren Tech Center outside Detroit is a pair of nondescript off-white buildings that house the company’s most consequential investment in years. The new Battery Cell Development Centre, spanning 500,000 square feet, is the lynchpin of GM’s plan to bring a new class of cheaper EV batteries to market a year earlier than planned.
The chemistry in question is LMR, or lithium-manganese-rich. GM says it is almost as energy-dense as the nickel-manganese-cobalt (NMC) cells in its current EVs, but at a cost comparable to the lithium-iron-phosphate (LFP) cells that power budget models like the Chevrolet Bolt. In a truck like the Silverado EV, GM claims LMR would preserve most of the vehicle’s 400-plus mile range while cutting at least $6,000 from the battery cost. For a mid-range model, that would bring the sticker price within reach of the petrol equivalent.
Why GM needs a new chemistry
GM’s EV rollout has been halting. Last year, the automaker took a $1.6 billion charge as it reconfigured production capacity, laid off thousands of workers, and reportedly shelved a refresh of its full-size electric trucks and SUVs. The broader US EV market has softened, and at least a dozen EV models have been discontinued in 2026 as tariffs and the expiration of federal tax credits reshape the landscape.
The underlying problem is cost. GM bet heavily on NMC chemistry through its Ultium platform, but rising materials prices and China’s dominance of critical minerals have kept EV prices stubbornly high. NMC will not disappear, but at GM it will be restricted to high-end vehicles. LFP is cheaper but less energy-dense, limiting range. LMR is the middle path: roughly 35% nickel and 65% manganese, virtually no cobalt, and reportedly 33% more energy density than LFP at a comparable cost.
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“That is really going to be our bread and butter,” Kurt Kelty, GM’s vice president of battery and sustainability and a former Tesla battery chief, told TechCrunch. “That is going to be our main product line.”
The bridge between lab and factory
Discovering a chemistry is one thing. Manufacturing gigawatt-hours of it is another. GM already has the Wallace Battery Cell Innovation Centre for small-batch R&D (30 to 50 cells per day) and a 2.8-million-square-foot Ultium gigafactory in Tennessee producing roughly 300,000 cells per year. What was missing was a way to connect the two.
The Battery Cell Development Centre fills that gap. When fully operational, it will produce about 2,500 cells per day, or roughly half a gigawatt-hour per year. It is an order of magnitude larger than the Wallace Centre next door, and one or two orders of magnitude smaller than the Tennessee plant. A test run costs about $200,000, far less than at the full-size factory.
“The BCDC is intended to bridge the gap,” Mo Gallegos, the facility’s head, told TechCrunch. The equipment is nearly identical to the production line, which should make the handoff smoother. “It shouldn’t be as hard of a handoff,” Kelty added.
AI and digital twins
GM is using AI models and a full digital twin of the facility to compress development timelines. The company has logged over 150 million CPU hours of physics-based simulation on LMR alone, more than most engine programmes consume in their entire development cycle, according to Radu Theyyunni, GM’s director of global virtual electrification.
The digital twin replicates the BCDC down to equipment control boards, wiring, and mixing tank blades. Before TechCrunch’s reporter set foot in the building, the team walked him through the twin in VR. GM has used it to verify equipment clearances, simulate control systems, and shorten debug and ramp-up time. The company says the simulations have saved millions of dollars, though it declined to specify the figure.
The competitive pressure
GM needs all the speed it can get. BYD and CATL are already producing cheaper, competitive cells at scale, and the global EV market grew 20% last year even as the US stalled. Multiple automakers are pursuing solid-state battery technology as the next frontier, with Toyota, Nissan, and BMW all targeting commercialisation by the end of the decade.
LMR is a different bet. Rather than chasing the revolutionary chemistry that solid-state promises, GM is trying to find a cell that is good enough on energy density and cheap enough on cost to make mass-market EVs competitive with petrol vehicles now, not in five years.
GM plans to start producing LMR cells with joint venture partner LG Energy Solution in 2027, with the cells going into full-size trucks and SUVs from 2028. The first batches are expected to roll off the BCDC line later this year. If the chemistry hits the 85% yield threshold that McKinsey considers the bar for commercial viability within 18 months on a production line, GM will have a genuine cost advantage. If it doesn’t, the timeline slips again, and the competition moves further ahead.
