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Breakthrough sun-powered tech pulls lithium from seawater, redefining energy | A membrane-free electrochemical cell separates lithium ions between brine and fresh water using iron-phosphate electrodes.
Researchers created a solar device that extracts lithium from seawater, offering an eco-friendly alternative to traditional mining.
The work is similar to research done by a University of Chicago team using iron phosphate particles to efficiently extract lithium from seawater, groundwater, and flowback water. “The sustainability of lithium-based energy storage or conversion systems, e.g., lithium-ion batteries, can be enhanced by establishing methods of efficient lithium extraction from harsh brines,” said the team, in the study abstract. In a pilot test, a larger cell with an electrode area of 33.75 square meters was used to extract lithium from Dead Sea brine, achieving a recovery rate of 84 percent.
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