Sustainable recycling of cathode scraps via Cyrene-based separation

Bai, Yaocai; Hawley, W. Blake; Jafta, Charl J.; Muralidharan, Nitin; Polzin, Bryant J.; Belharouak, Ilias

doi:10.1016/j.susmat.2020.e00202

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

Journal Article · Fri Jul 17 00:00:00 EDT 2020 · Sustainable Materials and Technologies

DOI:https://doi.org/10.1016/j.susmat.2020.e00202· OSTI ID:1649102

Bai, Yaocai ^[1]; Hawley, W. Blake ^[2];

^[1];

^[1]; Polzin, Bryant J. ^[3];

^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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
Argonne National Lab. (ANL), Argonne, IL (United States)

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.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office; USDOE

Grant/Contract Number:: AC05-00OR22725; AC02-06CH11357

OSTI ID:: 1649102

Alternate ID(s):: OSTI ID: 1704009; OSTI ID: 1780723

Journal Information:: Sustainable Materials and Technologies, Vol. 25, Issue NA; ISSN 2214-9937

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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