US finds 328 years' worth of lithium in Appalachia as global demand for the element surges
Lithium has become one of the world’s most in-demand materials thanks to its role in powering everything from smartphones to electric vehicles, and now the area of Appalachia in the US may have hit the jackpot.
Researchers have discovered massive lithium reserves buried beneath parts of Appalachia that could reportedly replace more than three centuries of US imports.
The find is being described as a major breakthrough for America’s energy and tech industries as countries race to secure supplies of the critical mineral.
If the estimates are accurate, the discovery could dramatically reshape America’s role in the global battery and electric vehicle market for decades to come.
US finds enough lithium in Appalachia to last hundreds of years
Appalachians have done the 2026 tech equivalent of striking gold in the gold rush.
According to the United States Geological Survey (USGS), the Appalachian region contains an estimated 2.3 million metric tons of lithium oxide hidden within pegmatite rock formations.
The southern Appalachians, particularly across the Carolinas, are believed to hold around 1.43 million metric tons, while northern areas including Maine and New Hampshire could contain another 900,000 metric tons.
Researchers say that amount of lithium could replace 328 years of US lithium imports based on current demand levels.
To put the scale into perspective, experts estimate the reserves could produce enough batteries for around 130 million electric vehicles, 500 billion smartphones, or billions of laptops and tablets.
USGS director Ned Mamula said the discovery could play a huge role in helping the country meet growing demand for battery technology as industries increasingly shift toward renewable energy and electric transportation.
The global demand has skyrocketed
The timing of the discovery is especially important because global demand for lithium is climbing rapidly.
Lithium-ion batteries are now used in EVs, phones, laptops, power tools, renewable energy storage systems, and even AI data centers because they charge quickly and last far longer than traditional batteries.
Right now, the US still relies heavily on imported lithium, while China dominates the global refining and battery production market.
The US produced only around 610 metric tons of lithium in 2024, accounting for just 0.3 percent of global production, according to reports.
That means this newly discovered Appalachian reserve could become a huge strategic advantage if the element can be extracted efficiently and at commercial scale.
There are still major hurdles ahead, including mining infrastructure, environmental permits, and refining capacity, but experts believe the discovery could help America reduce its dependence on foreign battery supplies in the years ahead.