A Closed-Loop Process for Selective Metal Recovery from Spent Lithium Iron Phosphate Batteries through Mechanochemical Activation
By Yongxia Yang, Xiaohong Zheng, Hongbin Cao, Chunlong Zhao, Xiao Lin, Pengge Ning, Yi Zhang, W. Jin, Zhi Sun. 2017
269 citations recorded by the source corpus.
With the increasing consumption of lithium ion batteries (LIBs) in electric and electronic products, the recycling of spent LIBs has drawn significant attention due to their high potential of environmental impacts and waste of valuable resources. Among different types of spent LIBs, the difficulties for recycling spent LiFePO4 batteries rest on their relatively low extraction efficiency and recycling selectivity in which secondary waste is frequently generated. In this research, mechanochemical activation was developed to selectively recycle Fe and Li from cathode scrap of spent LiFePO4 batteries. By mechanochemical activation pretreatment and the diluted H3PO4 leaching solution, the leaching efficiency of Fe and Li can be significantly improved to be 97.67% and 94.29%, respectively. To understand the Fe and Li extraction process and the mechanochemical activation mechanisms, the effects of various parameters during Fe and Li recovery were comprehensively investigated, including activation time, cathode p...
Subfields: Electrical and Electronic Engineering, Industrial and Manufacturing Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/478bcb20af669a5e99380736e5f12a4d53532582
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Citations in the corpus
- The Recycling of Spent Lithium-Ion Batteries: a Review of Current Processes and Technologies (2018, methodology): “1 3 precipitants include sodium hydroxide, oxalic acid, ammonium oxalate, and sodium carbonate, all of which can react with cobalt and lithium ions to form insoluble precipitates of cobalt hydroxide [50, 116], cobalt oxalate [35, 81, 101, 107, 110, 112, 117, 118], lithium phosphate [70, 91, 101, 119”