Abstract
AbstractNowadays the world's demand for lithium extraction has been vigorously growing, especially driven by an increased lithium use in new consumer electronic battery technologies and electric cars. Conventional methods for industrial lithium production from two major sources of underground brine deposits and mineral ore deposits are straightforward, but time‐consuming from several months to a few years to complete. Therefore, efficient and low‐energy‐consuming lithium extraction is highly desirable. Here, we develop an attractive electrochemical method for lithium recovery with low energy consumption and high selectivity based on a cell system using LiMn2O4 nanorods. Despite the presence of other cations, lithium ions can be selectively recovered from brine with a low energy consumption of 1.76 Wh mol−1. The resulting electrochemical cell system using LiMn2O4 nanorods exhibits outstanding cyclability with a recovery capacity retention of 37.4 % over 200 cycles. The lithium extraction strategy is effective and economical, which holds great promise for future lithium recycling.
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