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    Electrodialytic Treatment of Secondary Batteries Cathodes

    • Autor
      Cerrillo-González, María del Mar; Villén-Guzmán, María DoloresAutoridad Universidad de Málaga; Paz-García, Juan ManuelAutoridad Universidad de Málaga; Gómez-Lahoz, CésarAutoridad Universidad de Málaga; Vereda-Alonso, CarlosAutoridad Universidad de Málaga; García-Delgado, Rafael AntonioAutoridad Universidad de Málaga; Rodríguez-Maroto, José MiguelAutoridad Universidad de Málaga
    • Fecha
      2019-10-07
    • Palabras clave
      Baterías secundarias
    • Resumen
      The interest for reusing and recycling secondary batteries is increasing, driven by both economic and environmental reasons. Lithium-ion batteries are among the main energy storage devices more popular in portable electronic and there are being used more every year in the field of electric transportation. The growing demand for rechargeable batteries entails an increase in the attention paid to the recycling of spent batteries due to the toxicity of some of their essential components. Furthermore, some of these components, such as cobalt, natural graphite and phosphorus, are included in the list of critical raw materials for the European Union due to their strategic importance in the manufacturing industry. Therefore, the development of new technologies to selectively recover these key components should be addressed. In this work, an electrodialytic method is applied to real battery wastes previously submitted to a pre-treatment process (Figure 1). We focused on the extraction of Co and Li from spent cathodes, in combination with acid-extraction and different oxidation/reduction environments. The optimization of some of the most relevant operating parameters, such as cell design, selection of enhancing agent and current density has been carried out according to the lithium-ion batteries waste characteristic. Results indicate that the electrodialytic method could be a useful technique for the selective extraction of Li and Co from spent batteries. Furthermore, the deposition of Co at the cathode surface may be optimized to separate the cations at the catholyte, for a direct reincorporation in the manufacturing chain.
    • URI
      https://hdl.handle.net/10630/18534
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    Final Abstracts to EREM 2019 - 18.pdf (281.9Kb)
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    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA