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Preparation and magnetic performance of Co 0.8 Fe 2.2 O 4 by a sol–gel method using cathode materials of spent Li-ion batteries

Materials ScienceMagnetic PropertiesChemical EngineeringEngineeringBattery Electrode MaterialsLi-ion Battery MaterialsAdvanced Electrode MaterialLithium-ion BatteryCathode MaterialsEnergy StorageCo 0.8Electrochemical Energy StorageMagnetic PerformanceBatteriesChemistryO 4Electrochemistry