GM and LG Joint Venture Restarts Ohio Battery Production After Seven-Month Halt

Ultium Cells, the joint venture between General Motors and LG Energy Solution, is set to resume battery cell manufacturing next week at its facility in Warren, Ohio. The restart concludes a seven-month operational halt that began in January. Once manufacturing lines are fully operational, the plant is expected to employ roughly 1,400 workers.

The shutdown was originally planned to last six months but ultimately extended to seven. A small skeleton crew returned to the site in May to prepare equipment for the manufacturing reactivation, according to details first reported by The Next Web. Tom Gallagher, vice president of operations at Ultium Cells, indicated that the majority of the approximately 1,330 workers laid off during the January stoppage are returning to their roles.

The temporary closure was driven by policy shifts rather than manufacturing problems. A rush of consumer purchases late last year ahead of the phaseout of a $7,500 federal EV tax credit triggered a sharp drop in first-quarter sales. Although domestic electric vehicle sales rose 14.2 percent quarter-over-quarter in the second quarter to reach 247,226 units, overall volume remains 20.5 percent lower than during the same period last year.

The restart of the Ohio site provides immediate supply support for GM's core passenger vehicle brands, which recorded gains in quarterly deliveries. During the second quarter, Chevrolet electric vehicle sales grew 11.6 percent compared to the prior quarter, while Cadillac electric sales rose 27.9 percent. These incremental increases created a practical requirement for GM to resume battery cell manufacturing.

However, the reopening of the Warren facility does not signal a broader pivot back toward aggressive electrification for General Motors. Overall corporate sales fell four percent in the second quarter as broader demand for electric vehicles softened. In response, GM is reintroducing gasoline engines across its Cadillac brand as part of an overarching $11 billion pullback from its earlier electric vehicle targets.

This strategic shift is reflected across the automaker's manufacturing footprint. The Warren facility produces large-format nickel cobalt manganese aluminium pouch cells used in the majority of GM's electric passenger models. By contrast, the joint venture's plant in Tennessee has been converted to manufacture stationary energy storage systems, delaying plans to build cheaper lithium iron phosphate cells for cars until late 2027.

A similar reconfiguration occurred in Indiana, where Samsung SDI acquired GM's full equity stake in their joint venture earlier this week. The factory, which remains under construction, was originally designed to build prismatic cells for electric passenger vehicles, but will now be repurposed exclusively to manufacture cells for stationary energy storage.

Additionally, the restarted Ohio production lines will have no bearing on GM's lower-priced electric vehicle models. The Chevrolet Bolt continues to rely on lithium iron phosphate cells imported directly from China. Taken together, while total battery manufacturing capacity within the United States continues to grow, the proportion dedicated strictly to passenger electric vehicles is shrinking in tandem with GM's scaled-back EV program.