A closed-loop process for high-value regeneration of spent LiFePO<sub>4</sub> cathodes after selective aluminium precipitation
Kang Yan, Qing Chen, Zhongtang Zhang, Huaping Nie, Ruixiang Wang, Zhifeng Xu
Abstract
A recycling process is proposed in which spent cathode materials and Al foil are leached by low-concentration acids, then Al is selectively precipitated, finally the lithium iron phosphate material is synthesized by a one-step hydrothermal synthesis.
Topics & Concepts
CathodeHydrothermal circulationAluminiumFOIL methodLithium (medication)PrecipitationLithium iron phosphateMaterials scienceProcess (computing)Chemical engineeringHydrothermal synthesisBayer processPhosphateInorganic chemistryMetallurgyChemistryComposite materialElectrochemistryOrganic chemistryComputer scienceElectrodePhysical chemistryPhysicsMedicineOperating systemEndocrinologyMeteorologyEngineeringExtraction and Separation ProcessesAdvancements in Battery MaterialsRecycling and Waste Management Techniques