Research suggests a new lithium source in pyrite
Lithium, known for its reactivity and essential role in lithium-ion batteries, is critical for sustainable energy technologies such as electric vehicles and renewable energy storage systems. Given the surge in demand for lithium, researchers are looking at less conventional sources than primary sources, such as pegmatites and volcanic clay.
A promising pathway is being explored by a team from West Virginia University, led by sedimentary geochemist Shailee Bhattacharya. Their research examines the potential of recovering lithium from pyrite minerals found in shale, specifically from 15 Middle Devonian sedimentary rock samples in the Appalachian Basin. Bhattacharya will present these findings at the European Geosciences Union (EGU) 2024 General Assembly.
The team discovered significant lithium content in the pyrite minerals, a revelation given the limited geological literature on lithium’s association with sulfur-rich pyrite. This discovery is part of broader efforts to develop lithium-sulfur batteries, which could potentially replace current lithium-ion models.
Although the study is specific to certain US geological samples, it suggests that organic-rich shale could be a viable source of lithium. This method could provide a sustainable alternative to new mining activities, in line with broader objectives of energy savings and environmental protection.
Research report:Potential lithium enrichment in pyrite from organic-rich shale
