火法冶金
浸出(土壤学)
材料科学
碳热反应
湿法冶金
环境友好型
烘烤
锂(药物)
冶金
废物管理
环境科学
冶炼
铜
内分泌学
工程类
生物
土壤科学
土壤水分
医学
生态学
碳化物
作者
Xu‐Hui Zhu,Yanjuan Li,Mengqi Gong,Ran Mo,Siyuan Luo,Xiao Yan,Shun Yang
标识
DOI:10.1002/anie.202300074
摘要
Pyrometallurgy technique is usually applied as a pretreatment to enhance the leaching efficiencies in the hydrometallurgy process for recovering valuable metals from spent lithium-ion batteries. However, traditional pyrometallurgy processes are energy and time consuming. Here, we report a carbothermal shock (CTS) method for reducing LiNi0.3 Co0.2 Mn0.5 O2 (NCM325) cathode materials with uniform temperature distribution, high heating and cooling rates, high temperatures, and ultrafast reaction times. Li can be selectively leached through water leaching after CTS process with an efficiency of >90 %. Ni, Co, and Mn are recovered by dilute acid leaching with efficiencies >98 %. The CTS reduction strategy is feasible for various spent cathode materials, including NCM111, NCM523, NCM622, NCM811, LiCoO2 , and LiMn2 O4 . The CTS process, with its low energy consumption and potential scale application, provides an efficient and environmentally friendly way for recovering spent lithium-ion batteries.
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