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Title: Sustainable recycling of cathode scraps via Cyrene-based separation

Abstract

Separation of cathode materials from the current collector remains a challenging task for the recycling of both spent lithium-ion batteries and cathode scraps. Dissolving the organic binder polyvinylidene difluoride (PVDF) with an organic solvent to recover both cathode materials and Al foils is an efficient and promising method. However, the use of toxic solvents limits their practical application in recycling large amounts of cathode scraps generated during the manufacturing process. Cyrene, a bioderived green solvent, is proposed here for a solvent-based separation process. This study investigated a closed-loop recovery process to reclaim cathode materials, Al foils, and PVDF binder from cathode scraps. Furthermore, the reuse of the Cyrene solvent led to a circular recycling process. Additionally, the Cyrene-based separation process embraces a sustainable electrode recovery and reuse platform and paves the way for battery recycling.

Authors:
 [1];  [2]; ORCiD logo [1]; ORCiD logo [1];  [3]; ORCiD logo [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States). Bredesen Center for Interdisciplinary Research and Graduate Education
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
OSTI Identifier:
1649102
Alternate Identifier(s):
OSTI ID: 1704009; OSTI ID: 1780723
Grant/Contract Number:  
AC05-00OR22725; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Sustainable Materials and Technologies
Additional Journal Information:
Journal Volume: 25; Journal Issue: NA; Journal ID: ISSN 2214-9937
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Direct recycling; Cyrene; Electrode materials; Lithium-ion batteries; Polyvinylidene fluoride

Citation Formats

Bai, Yaocai, Hawley, W. Blake, Jafta, Charl J., Muralidharan, Nitin, Polzin, Bryant J., and Belharouak, Ilias. Sustainable recycling of cathode scraps via Cyrene-based separation. United States: N. p., 2020. Web. https://doi.org/10.1016/j.susmat.2020.e00202.
Bai, Yaocai, Hawley, W. Blake, Jafta, Charl J., Muralidharan, Nitin, Polzin, Bryant J., & Belharouak, Ilias. Sustainable recycling of cathode scraps via Cyrene-based separation. United States. https://doi.org/10.1016/j.susmat.2020.e00202
Bai, Yaocai, Hawley, W. Blake, Jafta, Charl J., Muralidharan, Nitin, Polzin, Bryant J., and Belharouak, Ilias. Fri . "Sustainable recycling of cathode scraps via Cyrene-based separation". United States. https://doi.org/10.1016/j.susmat.2020.e00202. https://www.osti.gov/servlets/purl/1649102.
@article{osti_1649102,
title = {Sustainable recycling of cathode scraps via Cyrene-based separation},
author = {Bai, Yaocai and Hawley, W. Blake and Jafta, Charl J. and Muralidharan, Nitin and Polzin, Bryant J. and Belharouak, Ilias},
abstractNote = {Separation of cathode materials from the current collector remains a challenging task for the recycling of both spent lithium-ion batteries and cathode scraps. Dissolving the organic binder polyvinylidene difluoride (PVDF) with an organic solvent to recover both cathode materials and Al foils is an efficient and promising method. However, the use of toxic solvents limits their practical application in recycling large amounts of cathode scraps generated during the manufacturing process. Cyrene, a bioderived green solvent, is proposed here for a solvent-based separation process. This study investigated a closed-loop recovery process to reclaim cathode materials, Al foils, and PVDF binder from cathode scraps. Furthermore, the reuse of the Cyrene solvent led to a circular recycling process. Additionally, the Cyrene-based separation process embraces a sustainable electrode recovery and reuse platform and paves the way for battery recycling.},
doi = {10.1016/j.susmat.2020.e00202},
journal = {Sustainable Materials and Technologies},
number = NA,
volume = 25,
place = {United States},
year = {2020},
month = {7}
}

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