火法处理废旧三元锂离子电池工艺研究  

Study on recycle of the spent ternary Li-ion battery by pyrometallurgical process

作　　者：苟海鹏 裴忠冶[1] 周国治 刘诚[1] 吕东[1] 陈学刚[1] 余跃 李明川 GOU Hai-peng;PEI Zhong-ye;ZHOU Guo-zhi;LIU Cheng;LV dong;CHEN Xue-gang;YU Yue;LI Ming-chuan

机构地区：[1]中国恩菲工程技术有限公司,北京100038 [2]北京科技大学钢铁冶金新技术国家重点实验室,北京100083

出　　处：《中国有色冶金》2019年第4期79-83,共5页China Nonferrous Metallurgy

摘　　要：利用NaCl溶液对废旧三元锂离子电池进行放电处理,将放电后的电池在650℃、N2气气氛下进行热解,选用活性炭和NaOH溶液处理热解过程中产生的HF气体和VOCs气体。热解产物主要由C、Cu、Al、Li 2CO3、NiO、CoO和Ni等组成,该产物可进一步用于湿法冶金提取Li、Ni、Co、Mn、Cu和Al等有价金属,经济效益显著。The spent ternary Li-ion batteries were discharging in the sodium chloride solution.After the treatment of electro-discharge,the spent ternary Li-ion batteries were roasted at 650℃in N 2 atmosphere.The gases of HF and VOCs produced in the process of pyrolysis were adsorbed by activated carbon and sodium hydroxide solution.The main phases of the pyrolysis products were C,Cu,Al,Li 2CO 3,NiO,CoO and Ni,which could be further used in the extraction of valuable metals by the hydrometallurgy process.The economic benefits were remarkable.

关 键 词：三元锂离子电池 放电处理 热解 回收 

分 类 号：TM911[电气工程—电力电子与电力传动]