化工环保2018，Vol.38Issue(2)：236-241,6.DOI:10.3969/j.issn.1006-1878.2018.02.021
氨基磺酸溶液浸出废锂离子电池负极活性材料中的锂
Leaching lithium from anode active material of spent lithium ion batteries with sulfaminic acid solution
摘要
Abstract
A large number of spent lithium-ion batteries (LIBs)were produced with the widely application of LIBs. The anode active materials of spent LIBs accumulated high grade lithium. It was worthy of recycling the rare metal lithium for its valuable. Due to the advantages of non-toxicity and good chemical stability,sulfaminic acid was used as leaching agent to leach Li+from anode active materials of spent LIBs. The effects of pretreatment process on composition and structure of anode active materials and the effects of leaching conditions on Li+leaching rate were investigated. The results showed that:The organic matters on the surface of anode active materials could be removed by calcination at 600 ℃ for 4 h;The Li+leaching rate was 97.2% under the optimum leaching conditions of sulfaminic acid concentration 0.75 mol/L,solid-to-liquid ratio 5 g/L,leaching temperature 40 ℃ and leaching time 45 min.关键词
废锂离子电池/负极活性材料/氨基磺酸/锂/浸出Key words
spent lithium ion battery/anode active material/sulfaminic acid/lithium/leaching分类
资源环境引用本文复制引用
程前,廖文超..氨基磺酸溶液浸出废锂离子电池负极活性材料中的锂[J].化工环保,2018,38(2):236-241,6.基金项目
国家自然科学基金青年项目(51408518) （51408518）
福建省中青年教师教育科研项目(JAT170431) （JAT170431）
厦门理工学院对外科技合作交流专项(E201401700). （E201401700）
