Source analysis of nickel-cobalt material and exploration on the feasibility as importing raw material
A case of imported goods declared as"nickel-cobalt material"was characterized by multi-technol-ogy combination,and its source attribute was confirmed through analysis,and the feasibility of whether it could be used as raw material was discussed.The results provided technical support for import supervi-sion.X-ray fluorescence spectrometry,carbon-sulfur analysis,headspace gas chromatography mass spec-trometry,pyrolysis gas chromatography mass spectrometry,X-ray diffraction analysis,electro microscope energy spectrum,potentiometric titration,atomic absorption spectrometry and thermogravimetric analysis combined with sensory detection were employed for the testing.It was compared with the relevant litera-tures for traceability analysis.The micro-morphology,elemental composition,physical phase composition,toxic substances,organic compounds and other characteristics of the sample were analyzed.The results showed that the sample was mainly a ternary material of nickel-cobalt-lithium manganate,and also con-tained a small amount of metal aluminum chips,elemental carbon and organic compounds,which had the composition characteristics of lithium-ion battery cathode wafers.Combined with the appearance and com-position characteristics of the sample,it was confirmed that the sample was the recycled powder of lithium-ion battery cathode wafers.
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