废旧三元动力电池正极材料中有用元素提取技术进展

随着新能源汽车产业的发展，汽车动力电池产量快速增长，动力电池报废量也逐年增加。为实现废旧动力电池中有价元素的循环利用，降低废弃物对环境的污染，缓解锂、钴资源供需不平衡矛盾，废旧动力电池资源化迫在眉睫。三元正极材料是废旧动力电池中最具有回收价值的成分，综述了废旧三元动力电池正极材料的湿法提取技术、火法—湿法联合提取技术以及其他提取技术的进展，分析比较了各种技术的优势与不足，并对废旧三元动力电池正极材料中有价元素提取技术未来的发展方向进行展望。

Progress in Extraction Technology of Valuable Elements from Cathode Materials of Waste Ternary Power Batteries

With the development of the new energy vehicles industry, the output of vehicles power batteries is growing rapidly, and the amount of discarded power battery is also increasing year by year. In order to realize the recycling of valuable elements in spent power batteries, reduce the pollution of waste to environment and alleviate the contradiction between supply and demand of lithium and cobalt resources, the recycling of spent power batteries is extremely urgent. Ternary cathode material is the most valuable recycling component in the spent vehicles power batteries. The technological progress of hydrometallurgy, combined pyrometallurgy and hydrometallurgy extraction technology, and other extraction technologies of waste ternary power battery cathode materials were summarized. The advantages and disadvantages of various technologies were analyzed. The research direction of the extraction technology of valuable elements from the cathode materials of waste ternary power battery was prospected.