title: A novel process for recycling and resynthesizing LiNi1/3Co1/3Mn1/3O2 from the cathode scraps intended for lithium-ion batteries.
abstract: To solve the recycling challenge for aqueous binder based lithium-ion batteries (LIBs), a novel process for recycling and resynthesizing LiNi1/3Co1/3Mn1/3O2 from the cathode scraps generated during manufacturing process is proposed in this study. Trifluoroacetic acid (TFA) is employed to separate the cathode material from the aluminum foil. The effects of TFA concentration, liquid/solid (L/S) ratio, reaction temperature and time on the separation efficiencies of the cathode material and aluminum foil are investigated systematically. The cathode material can be separated completely under the optimal experimental condition of 15vol.% TFA solution, L/S ratio of 8.0 mL g(-1), reacting at 40°C for 180 min along with appropriate agitation. LiNi1/3Co1/3Mn1/3O2 is successfully resynthesized from the separated cathode material by solid state reaction method. Several kinds of characterizations are performed to verify the typical properties of the resynthesized LiNi1/3Co1/3Mn1/3O2 powder. Electrochemical tests show that the initial charge and discharge capacities of the resynthesized LiNi1/3Co1/3Mn1/3O2 are 201 mAh g(-)(1) and 155.4 mAh g(-1) (2.8-4.5 V, 0.1C), respectively. The discharge capacity remains at 129 mAh g(-1) even after 30 cycles with a capacity retention ratio of 83.01%.
authors: National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China; Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Beijing Engineering Research Center of Process Pollution Control, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors: Xihua
authors: X
authors: Zhang
authors: National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China; Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Beijing Engineering Research Center of Process Pollution Control, Beijing 100190, China. Electronic address: ybxie@ipe.ac.cn.
authors: Yongbing
authors: Y
authors: Xie
authors: National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China; Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Beijing Engineering Research Center of Process Pollution Control, Beijing 100190, China. Electronic address: hbcao@ipe.ac.cn.
authors: Hongbin
authors: H
authors: Cao
authors: National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China; Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Beijing Engineering Research Center of Process Pollution Control, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors: Faheem
authors: F
authors: Nawaz
authors: National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China; Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Beijing Engineering Research Center of Process Pollution Control, Beijing 100190, China.
authors: Yi
authors: Y
authors: Zhang
mesh_terms: D000535:Aluminum; D003035:Cobalt; D004566:Electrodes; D059029:Electronic Waste; D008094:Lithium; D008345:Manganese; D009532:Nickel; D010087:Oxides / Q000138:chemical synthesis*; D059027:Recycling / Q000379:methods*; D013696:Temperature; D014269:Trifluoroacetic Acid
chemical_list: D010087:Oxides; D003035:Cobalt; D008345:Manganese; D009532:Nickel; D008094:Lithium; D000535:Aluminum; D014269:Trifluoroacetic Acid
keywords: Cathode scrap; Lithium-ion battery; Resynthesis; Solid state reaction; Trifluoroacetic acid