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Title: Sustainable Direct Recycling of Lithium-Ion Batteries via Solvent Recovery of Electrode Materials

Abstract

Separation of electrode materials from their current collectors is an enabling step toward recovering critical materials from spent lithium-ion batteries. In this study, a highly efficient, cost-effective, and environmentally sustainable separation process was developed for that purpose. Ethylene glycol, a vital commodity chemical as an antifreeze and polymer precursor, is used to delaminate electrode materials at low temperatures in seconds without altering the crystalline structure and morphology of active electrode materials. The recovered current collectors were intact without any corrosion. The authors also found that the solvent could be continuously reused, leading to the development of a closed-loop ecosystem and lithium-ion battery circular economy. The ultrafast delamination was driven by the competitive inhibition of binding through the weakening of hydrogen bonding. The ethylene glycol-based separation is a sustainable electrode recovery process that paves the way for battery recycling.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2];  [1]; 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)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
OSTI Identifier:
1661243
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
ChemSusChem
Additional Journal Information:
Journal Volume: TBD; Journal Issue: TBD; Journal ID: ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English

Citation Formats

Bai, Yaocai, Muralidharan, Nitin, Li, Jianlin, Essehli, Rachid, and Belharouak, Ilias. Sustainable Direct Recycling of Lithium-Ion Batteries via Solvent Recovery of Electrode Materials. United States: N. p., 2020. Web. doi:10.1002/cssc.202001479.
Bai, Yaocai, Muralidharan, Nitin, Li, Jianlin, Essehli, Rachid, & Belharouak, Ilias. Sustainable Direct Recycling of Lithium-Ion Batteries via Solvent Recovery of Electrode Materials. United States. doi:10.1002/cssc.202001479.
Bai, Yaocai, Muralidharan, Nitin, Li, Jianlin, Essehli, Rachid, and Belharouak, Ilias. Fri . "Sustainable Direct Recycling of Lithium-Ion Batteries via Solvent Recovery of Electrode Materials". United States. doi:10.1002/cssc.202001479.
@article{osti_1661243,
title = {Sustainable Direct Recycling of Lithium-Ion Batteries via Solvent Recovery of Electrode Materials},
author = {Bai, Yaocai and Muralidharan, Nitin and Li, Jianlin and Essehli, Rachid and Belharouak, Ilias},
abstractNote = {Separation of electrode materials from their current collectors is an enabling step toward recovering critical materials from spent lithium-ion batteries. In this study, a highly efficient, cost-effective, and environmentally sustainable separation process was developed for that purpose. Ethylene glycol, a vital commodity chemical as an antifreeze and polymer precursor, is used to delaminate electrode materials at low temperatures in seconds without altering the crystalline structure and morphology of active electrode materials. The recovered current collectors were intact without any corrosion. The authors also found that the solvent could be continuously reused, leading to the development of a closed-loop ecosystem and lithium-ion battery circular economy. The ultrafast delamination was driven by the competitive inhibition of binding through the weakening of hydrogen bonding. The ethylene glycol-based separation is a sustainable electrode recovery process that paves the way for battery recycling.},
doi = {10.1002/cssc.202001479},
journal = {ChemSusChem},
number = TBD,
volume = TBD,
place = {United States},
year = {2020},
month = {7}
}

Journal Article:
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