Characteristics of graphite obtained by recycling lithium - iron phosphate batteries

Original scientific paper

Authors

  • Іvan Shcherbatiuk Joint Department of Electrochemical Energy Systems of National Academy of Science of Ukraine, Vernadsky ave., 38-A, Kyiv, 03142, Ukraine https://orcid.org/0000-0001-8768-8642
  • Hanna Potapenko Joint Department of Electrochemical Energy Systems of National Academy of Science of Ukraine, Vernadsky ave., 38-A, Kyiv, 03142, Ukraine and Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China https://orcid.org/0000-0002-1071-0183
  • Danylo Panchenko Joint Department of Electrochemical Energy Systems of National Academy of Science of Ukraine, Vernadsky ave., 38-A, Kyiv, 03142, Ukraine https://orcid.org/0009-0001-2703-4695
  • Volodymyr Khomenko Institute for Sorption and Problems of Endoecology of National Academy of Science of Ukraine, 13, Generala Naumova str., Kyiv 03164 Ukraine and Kyiv National University of Technologies and Design, Mala Shyianovska (Nemyrovycha-Danchenka) Street, 2, Kyiv 01011, Ukraine https://orcid.org/0000-0003-0013-8010
  • Dmytro Patlun Kyiv National University of Technologies and Design, Mala Shyianovska (Nemyrovycha-Danchenka) Street, 2, Kyiv 01011, Ukraine https://orcid.org/0000-0003-3832-1996
  • Borys Halyuk Institute for Sorption and Problems of Endoecology of National Academy of Science of Ukraine, 13, Generala Naumova str., Kyiv 03164 Ukraine https://orcid.org/0009-0003-5189-0103
  • Roman Derkach Institute for Sorption and Problems of Endoecology of National Academy of Science of Ukraine, 13, Generala Naumova str., Kyiv 03164 Ukraine https://orcid.org/0009-0001-8175-2698
  • Olexander Potapenko Joint Department of Electrochemical Energy Systems of National Academy of Science of Ukraine, Vernadsky ave., 38-A, Kyiv, 03142, Ukraine and Institute for Sorption and Problems of Endoecology of National Academy of Science of Ukraine, 13, Generala Naumova str., Kyiv 03164 Ukraine https://orcid.org/0000-0002-0169-2403
  • Viacheslav Barsukov Department of Electrochemical Power Engineering and Chemistry Kyiv National University of Technologies and Design, Kyiv, 1 Ukraine https://orcid.org/0000-0002-3041-2474

DOI:

https://doi.org/10.5599/jese.2257

Keywords:

lithium ion batteries, recycling, graphite anode, electrochemical parameters, impedance
Graphical Abstract

Abstract

Based on both the economic and environmental points of view, processing used lithium-ion batteries (LIBs) is of great importance. The valuable components contained in LIB (cathode, anode and current collectors) generate high interest in solving the problem of resource deficiency and reducing environmental destruction due to overexploitation. The starting anode material extracted from a used lithium iron phosphate battery is a mixture of graphite, acetylene carbon black, and polymer binder. Reusing this material in lithium batteries without additional cleaning is impractical owing to poor electrochemical characteristics and the presence of impurities. To achieve effective regeneration, the recycled anode material is first treated in a nitric acid solution to remove copper foil and lithium ions with electrolyte interaction products formed during battery operation. The next step is heat treatment of the material, which allows the removal of acetylene soot and polymer glue binder. The tests showed sufficiently high values of the specific capacity of recycled graphite (~330 mA h g-1 at 0.1 C), which are comparable to commercial materials and meet the requirements of reuse.

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Published

27-04-2024 — Updated on 27-04-2024

How to Cite

Shcherbatiuk І., Potapenko, H., Panchenko, D., Khomenko, V., Patlun , D., Halyuk, B., Derkach, R., Potapenko, O., & Barsukov, V. (2024). Characteristics of graphite obtained by recycling lithium - iron phosphate batteries: Original scientific paper. Journal of Electrochemical Science and Engineering, 14(3), 383–393. https://doi.org/10.5599/jese.2257

Issue

Vol. 14 No. 3 (2024)

Section

Batteries and supercapcitors

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