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发明公开
CN110512080A 一种废旧镍钴锰锂离子电池中有价金属分离回收方法 无效 - 驳回

一种废旧镍钴锰锂离子电池中有价金属分离回收方法
摘要：
本发明属于化工技术领域，具体涉及一种废旧镍钴锰锂离子电池中有价金属分离回收方法。其包括放电破碎剥离浸出、除铜铁铝、萃取镍钴锰、沉淀锂、固液分离洗涤等步骤。本发明的方法对废旧锂离子电池中有价金属镍、钴、锰、锂浸出率均大于99%，得到的硫酸镍、钴、锰混合液可用于合成镍钴锰三元前驱体，本发明的方法工艺流程短，镍钴锰的总回收率98%以上，锂总回收率90%以上，达到废旧镍钴锰三元锂离子电池中有价金属镍、钴、锰、锂简单有效回收的目的。
摘要（英）：

The invention belongs to the technical field of chemical engineering, and particularly relates to a method for separating and recovering valuable metals from nickel-cobalt-manganese lithium ion batteries. The method comprises the steps of carrying out discharging, crushing, stripping and leaching; removing copper, iron and aluminum; extracting nickel, cobalt and manganese; precipitating lithium; and carrying out solid-liquid separation and washing. According to the method, the leaching efficiencies for the valuable metals such as nickel, cobalt, manganese and lithium in the waste lithium ion batteries are all greater than 99%, and the obtained mixed solution of nickel sulfate, cobalt sulfate and manganese sulfate can be used for synthesizing a nickel-cobalt-manganese ternary precursor. Themethod is short in process, the total recovery rate of the nickel, cobalt and manganese is 98% or above, and the total recovery rate of the lithium is 90% or above, so that the aim of simply and effectively recovering the valuable metals such as nickel, cobalt, manganese and lithium in the waste nickel-cobalt-manganese ternary lithium ion batteries is achieved.

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