Supervolcanoes Identified as Potential Lithium Sources for EV Batteries
Stanford research highlights dormant supervolcanoes as promising sites for lithium extraction, offering a possible answer to rising demand from electric vehicle manufacturers.
A Stanford University study has identified dormant supervolcanoes as promising sources of lithium, a metal critical to electric vehicle battery production. The research points to calderas such as Yellowstone and Long Valley in the United States, as well as sites in Indonesia, New Zealand and Japan, as areas where lithium-rich deposits could be found in the volcanic rock and sediments left by ancient eruptions.
The study’s lead author, Thomas Benson, said demand for lithium is outpacing current scientific understanding of its global distribution. He argued that supervolcanoes, which erupt with extreme force and leave behind vast calderas, have the geologic conditions needed to concentrate lithium in accessible forms. This is due to the interaction of volcanic magma with groundwater and subsequent weathering, which can trap lithium in clay and other minerals.
Why supervolcanoes matter for EV supply
Electric vehicle manufacturers are facing mounting pressure to secure reliable sources of lithium as production ramps up. Current supplies are dominated by hard-rock mining in Australia and brine extraction in South America, both of which face environmental scrutiny and logistical challenges. Supervolcano calderas, if proven commercially viable, could provide an alternative supply route and reduce dependence on existing sources.
Challenges and next steps for extraction
While the research highlights the geological potential, commercial extraction from supervolcano calderas remains unproven. Mining these sites would require detailed exploration, environmental assessments and new processing techniques to recover lithium from volcanic clays. The prospect also raises questions about land use and the impact on protected areas, particularly in places like Yellowstone.
For now, the identification of supervolcanoes as potential lithium sources adds a new dimension to the search for battery materials. If exploration confirms the presence of extractable deposits, these sites could play a role in meeting the needs of the growing electric vehicle sector.
