Addressing the Reuse of Deep Eutectic Solvents in Li-Ion Battery Recycling: Insights into Dissolution Mechanism, Metal Recovery, Regeneration and Decomposition.

Autor: Svärd M; KTH Royal Institute of Technology, Department of Chemical Engineering, Teknikringen 42, SE-10044, Stockholm, Sweden., Ma C; KTH Royal Institute of Technology, Department of Chemical Engineering, Teknikringen 42, SE-10044, Stockholm, Sweden., Forsberg K; KTH Royal Institute of Technology, Department of Chemical Engineering, Teknikringen 42, SE-10044, Stockholm, Sweden., Schiavi PG; Sapienza University of Rome, Department of Chemistry, Piazzale Aldo Moro n.5, 00185, Rome, Italy.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2024 Oct 21; Vol. 17 (20), pp. e202400410. Date of Electronic Publication: 2024 Jun 10.
DOI: 10.1002/cssc.202400410
Abstrakt: Deep eutectic solvents (DESs) have garnered attention in Li-ion battery (LIB) recycling due to their declared eco-friendly attributes and adjustable metal dissolution selectivity, offering a promising avenue for recycling processes. However, DESs currently lack competitiveness compared to mineral acids, commonly used in industrial-scale LIB recycling. Current research primarily focuses on optimizing DES formulation and experimental conditions to maximize metal dissolution yields in standalone leaching experiments. While achieving yields comparable to traditional leaching systems is important, extensive DES reuse is vital for overall recycling feasibility. To achieve this, evaluating the metal dissolution mechanism can assist in estimating DES consumption rates and assessing process makeup stream costs. The selection of appropriate metal recovery and DES regeneration strategies is essential to enable subsequent reuse over multiple cycles. Finally, decomposition of DES components should be avoided throughout the designed recycling process, as by-products can impact leaching efficiency and compromise the safety and environmental friendliness of DES. In this review, these aspects are emphasized with the aim of directing research efforts away from simply pursuing the maximization of metal dissolution efficiency, towards a broader view focusing on the application of DES beyond the laboratory scale.
(© 2024 Wiley-VCH GmbH.)
Databáze: MEDLINE
Externí odkaz: