从废三元正极锂离子电池中完全回收锂盐和过渡金属氧化物。

IF 4.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2025-06-06 DOI:10.1039/d5cc01626f

Yan Wang , Yigang Wang , Aoyuan Chen , Wujie Yang , Haoshen Zhou , Ping He

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引用次数: 0

摘要

研究了一种由四乙基氯化铵和草酸组成的新型深度共晶溶剂（DES），用于从废旧锂离子电池三元正极材料中高效回收有价金属。DES选择性地浸出Li、Co和Mn，同时沉淀出高纯度NiC2O4·2H2O的Ni。在温和条件下，H2O2的加入降低了草酸的消耗，提高了金属浸出率。通过调节配位环境和利用溶解度差异，分离出纯度超过97%的单金属化合物，可用于高性能正极材料的再合成。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Full recovery of lithium salts and transition metal oxides from spent ternary cathode lithium-ion batteries†

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Full recovery of lithium salts and transition metal oxides from spent ternary cathode lithium-ion batteries†

This study developed a novel deep eutectic solvent (DES) composed of tetraethylammonium chloride and oxalic acid for efficient recovery of valuable metals from spent lithium-ion battery ternary cathode materials. The DES selectively leached Li, Co, and Mn, while precipitating Ni as high-purity NiC₂O₄·2H₂O. The addition of H₂O₂ reduced the consumption of oxalic acid and enhanced metal leaching under mild conditions. By modulating the coordination environment and leveraging solubility differences, single metal compounds with purities exceeding 97% have been isolated, which are applicable for resynthesizing high-performance cathode materials.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.