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Title	Sustainable paths to a circular economy: reusing aged Li-ion FePO₄ cathodes within Na-ion cells
ID_Doc	27817
Authors	Gucciardi, E; Galceran, M; Bustinza, A; Bekaert, E; Casas-Cabanas, M
Title	Sustainable paths to a circular economy: reusing aged Li-ion FePO₄ cathodes within Na-ion cells
Year	2021
Published	Journal Of Physics-Materials, 4.0, 3
Abstract	Responsible disposal and recycling are essential for the sustainability of the battery market, which has been exponentially growing in the past few years. Under such a scenario, the recycling of materials of less economic value, but environmentally much more sustainable like LiFePO4, represents an economic challenge. In this paper an approach to recover used FePO4 electrodes from calendar aged Lithium-ion (Li-ion) batteries and their reuse in Sodium-ion (Na-ion) cells is proposed. The electrochemical performances of the Na-ion cell are shown to be comparable with previously reported values and, since the electrode can retain the original microstructure and distribution, electrode processing can be avoided. A proof of concept of a NaFePO4//hard carbon full cell using a very high positive electrode loading optimized for Li-ion batteries (approximate to 14 mg cm(-2)) is shown.
PDF	https://doi.org/10.1088/2515-7639/abf08f

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