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Closing the loop on lithium refining
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DOI：10.1126/science.aei1181.png)
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Abstract
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Lithium is an indispensable resource for the global transition toward sustainable energy because of its use in high–energy density batteries. Ironically, the lithium that underlies this movement is currently produced by unsustainable processes. Extracting lithium from brine is slow and geologically constrained and demands enormous water resources. By contrast, hardrock mining is fast and based on an abundant resource. However, refining lithium from hardrock requires energy- and carbon-intensive processes. On page 980 of this issue, Mowbray et al. (1) report a sustainable way to convert lithium hardrock into three valuable compounds—battery-grade lithium carbonate, cementitious silica, and smelter-grade alumina—at mild temperatures (<100°C). This could establish a lowcarbon alternative to hardrock refining, addressing both the surging demand for lithium and the carbon footprint that undermines the sustainability of the energy transition that lithium is meant to enable.
Keywords:
lithium refining
sustainable energy
hardrock mining
battery-grade lithium carbonate
low-carbon alternative
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THERMOCHIMICA ACTA
THERMOCHIMICA ACTAIF3.5
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ShareSaveDirect Lithium Extraction from α-Spodumene through Solid-State Reactions for Sustainable Li2CO3 ProductionINORGANIC CHEMISTRY
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