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Direct Recycling of Spent NCM Cathodes through Ionothermal Lithiation

Journal Article · · Advanced Energy Materials
Ionic liquids (ILs) are a family of nonconventional molten salts that offer many advantages, such as negligible vapor pressures, negligible flammability, wide liquidus ranges, good thermal stability, and much synthesis flexibility. The unique solvation environment of these ILs provides new reaction or flux media for controlling formation of solid-state materials with a minimum perturbation of morphologies. A successful lithiation via ionothermal synthesis using a cost-effective Li halide as Li source and recyclable ILs as solvents is reported in this study for the direct recycling of LiNi1/3Co1/3Mn1/3O2 (NCM 111) cathodes. In addition, the ionic liquids can be readily recycled and reused after ionothermal lithiation. The lithiation of spent cathodes can enable the direct recycling of spent cathode materials in lithium-ion batteries.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1659614
Alternate ID(s):
OSTI ID: 1634865
Journal Information:
Advanced Energy Materials, Journal Name: Advanced Energy Materials Journal Issue: 30 Vol. 10; ISSN 1614-6832
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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