Along with the rapidly growing market of lithium-ion batteries, exploration of efficient strategies to recycle the retired lithium-ion batteries has become an imminent issue. Herein, a green and comprehensive recycling method based on the direct current (DC) electric field driven de-lithiation is developed and the feasibility of the strategy is systematically investigated. The results demonstrate that during the recycling process, the lithium ions can be effectively recovered with simultaneous H₂ production. Meanwhile, the de-lithiated electrode materials exhibit a remarkable electrocatalytic activity, which is proved to be related to their high specific surface area as well as their large amount of lattice oxygen. Based on the Daedalian combination of efficient lithium recycling and applications of the de-lithiated cathode materials for oxygen evolution reaction, this study provides an effective strategy for recycling and making maximum use of the spent lithium-ion battery electrode materials based on the DC electric field driven de-lithiation process.

随着锂离子电池市场的快速增长，探索回收报废的锂离子电池的有效策略已成为迫在眉睫的问题。本文提出了一种基于直流电场驱动去锂的绿色综合回收方法，并对该策略的可行性进行了系统的研究。结果表明，在回收过程中，可以同时回收H ₂来有效地回收锂离子。生产。同时，去锂化的电极材料表现出显着的电催化活性，这被证明与它们的高比表面积以及其大量的晶格氧有关。基于有效锂回收的Daedalian组合和脱锂阴极材料在氧气释放反应中的应用，本研究提供了一种有效的策略，可基于DC电场回收和最大程度地利用废锂离子电池电极材料驱动的去锂化过程。