Electrochemical and structural characterization of copper recycled from anodes of spent Li-ion batteries |
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Authors: | V G Celante M K Pietre M B J G Freitas |
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Affiliation: | 1. Departamento de Química, Laboratório de Eletroquímica Aplicada, Universidade Federal do Espírito Santo, Av. Fernando Ferrari 514, Goiabeiras, Vitória-ES, CEP: 29075-910, Brazil
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Abstract: | In this study, the charge efficiency, nucleation growth, and morphology of electrodeposited copper from spent Li-batteries were studied. The charge efficiency for these deposits shows a maximum value of 99.41%, under a charge density of 5.0 C cm?2. Studies with the SEM technique at pH 2.0 show well-formed nuclei. At pH 4.5, the deposits take the form of dendrites. XRD analysis shows that, in both cases, a Cu2O structure is present, but with a large amount at pH 4.5, evidenced by peaks of 002] and 110] directions. |
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