Abstract:Salt lake brine has become a promising lithium resource, but it remains challenging to separate Li + ions from the coexisting ions. We designed a membrane electrode having conductive and hydrophilic bifunctionality based on the H 2 TiO 3 ion sieve (HTO). Reduced graphene oxide (RGO) was combined with the ion sieve to improve electrical conductivity, and tannic acid (TA) was polymerized on the surface of ion sieve to enhance hydrophilicity. These bifunctional modification at the microscopic level improved the e… Show more
“…Lithium is an important energy strategic metal and has been used in batteries, nuclear energy, aerospace, and other industries. − Recently, the global demand for lithium has increased drastically due to the rapid development of electric vehicles. , The traditional lithium extraction from ores has been unable to meet the tremendous requirements for lithium, and there are also problems such as energy-extensive consumption and serious environmental pollution in the mining process. Therefore, we urgently need to obtain lithium resources from brines to increase lithium production capacities.…”
“…Lithium is an important energy strategic metal and has been used in batteries, nuclear energy, aerospace, and other industries. − Recently, the global demand for lithium has increased drastically due to the rapid development of electric vehicles. , The traditional lithium extraction from ores has been unable to meet the tremendous requirements for lithium, and there are also problems such as energy-extensive consumption and serious environmental pollution in the mining process. Therefore, we urgently need to obtain lithium resources from brines to increase lithium production capacities.…”
The demand for lithium resources is growing rapidly due to the continuous development of the lithium‐ion battery, which plays an important part in the renewable energy industry. Global sources of lithium are ores and brine, of which 59% are distributed in saline brine. However, the significant lithium resources in saline brine have not been fully utilized. The electrochemical deintercalation method (EDM) for lithium extraction from saline brine is a promising technique because of its environmental friendliness, high selectivity, and cost‐effectiveness. Nevertheless, the application of EDM is greatly limited by the easy dissolution of electrode materials like LiMn2O4 and the cost of mass production. Also, there are a few existing review articles on the EDM for lithium extraction. To address this gap, this review provides a comprehensive overview of the current methods for lithium extraction from saline brine, systematically summarizes the technical status of the EDM, and pays special attention to the preparation method and modification of electrode materials. This review gives new insight into the mechanism of EDM and provides a new design strategy for the evaluation methods of EDM.
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