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为了高效回收废旧锂离子电池中的有价金属并降低环境污染，本文采用新型绿色环保的三元共晶溶剂，对废旧锂离子电池中的高价值金属钴和锂进行回收研究。在140℃、5 h、液固比（L/S）为50∶1的情况下，钴和锂的浸出率分别为99.76%和99.29%，同时浸出时的分子动力学表明该浸出过程受到界面化学反应控制。进一步用浸出产物制备钴酸锂电池正极材料，结果表明其电化学性能与商用钴酸锂电池正极材料相当。本文提出的利用三元共晶溶剂回收钴酸锂电池正极材料的方法高效且环保，具有良好的应用前景。
Abstract：To efficiently recover the valuable metals from spent lithium-ion batteries and reduce environmental pollution, this study employs a novel eco-friendly ternary eutectic solvent for recycling the high value metals cobalt and lithium. The leaching rate of cobalt and lithium can reach 99.76% and 99.29% respectively at 140 ℃, 5 h and L/S=50∶ 1. Meanwhile, molecular dynamics during leaching demonstrate that the leaching process is controlled by interfacial chemical reactions. The leaching products were further regenerated into lithium cobalt oxide cathode materials, which exhibited electrochemical performance comparable to commercial lithium cobalt oxide cathode materials. The proposed method utilizes ternary eutectic solvents to achieve efficient and environmentally friendly recycling and regeneration of lithium cobalt oxide cathode materials, showing promising application prospects.
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基本信息:
DOI：10.19996/j.cnki.ChinBatlnd.2026.01.003
中图分类号:X705;TM912
引用信息:
[1]李辉龙,夏冰,汪国庆.三元共晶溶剂回收钴酸锂电池正极材料并再生的研究[J].电池工业,2026,30(01):9-16.DOI:10.19996/j.cnki.ChinBatlnd.2026.01.003.