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   商业锂离子电池（LIBs）产量的不断增加将导致其寿命结束时废物的惊人积累。一个闭环解决方案，通过有效回收废锂离子电池，将减少其使用对环境的影响和经济成本。目前，<5%的废锂离子电池被回收，不幸的是，尽管电池级石墨的成本相当高，但石墨阳极的再生大多被忽视。在此，开发了一种用于再生石墨阳极的超快闪蒸回收方法，并回收了宝贵的电池金属资源。选择性焦耳加热仅应用几秒钟以有效地分解电阻杂质。所产生的无机盐，包括锂、钴、镍和锰，可以使用稀释的酸，特别是0.1m的HCl，容易地从闪蒸的阳极废物中回收。与使用高温煅烧方法回收的阳极材料相比，闪蒸回收的阳极保留了石墨结构，并涂有固体电解质界面衍生的碳壳，有助于提高初始比容量、优异的倍率性能和循环稳定性。与当前石墨生产和回收方法相关的生命周期分析表明，闪速回收可以显著降低总能耗和温室气体排放，同时将阳极回收转化为一种具有经济优势的工艺。

    The ever-increasing production of commercial lithium-ion batteries (LIBs) will result in a staggering accumulation of waste when they reach their end of life. A closed-loop solution, with effective recycling of spent LIBs, will lessen both the environmental impacts and economic cost of their use. Presently, <5% of spent LIBs are recycled and the regeneration of graphite anodes has, unfortunately, been mostly overlooked despite the considerable cost of battery-grade graphite. Here, an ultrafast flash recycling method to regenerate the graphite anode is developed and valuable battery metal resources are recovered. Selective Joule heating is applied for only seconds to efficiently decompose the resistive impurities. The generated inorganic salts, including lithium, cobalt, nickel, and manganese, can be easily recollected from the flashed anode waste using diluted acid, specifically 0.1 m HCl. The flash-recycled anode preserves the graphite structure and is coated with a solid-electrolyte-interphase-derived carbon shell, contributing to high initial specific capacity, superior rate performance, and cycling stability, when compared to anode materials recycled using a high-temperature-calcination method. Life-cycle-analysis relative to current graphite production and recycling methods indicate that flash recycling can significantly reduce the total energy consumption and greenhouse gas emission while turning anode recycling into an economically advantageous process.