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A contact-electro-catalytic cathode recycling method for spent lithium-ion batteries

Author

Listed:
  • Huifan Li

    (Chinese Academy of Sciences
    Guangxi University)

  • Andy Berbille

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xin Zhao

    (Chinese Academy of Sciences)

  • Ziming Wang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Wei Tang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zhong Lin Wang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Yonsei University)

Abstract

With the global trend towards carbon neutrality, the demand for lithium-ion batteries (LIBs) is continuously increasing. However, current recycling methods for spent LIBs need urgent improvement in terms of eco-friendliness, cost and efficiency. Here we propose a mechano-catalytic method, dubbed contact-electro-catalysis, utilizing radicals generated by contact electrification to promote the metal leaching under the ultrasonic wave. We also use SiO2 as a recyclable catalyst in the process. For lithium cobalt (III) oxide batteries, the leaching efficiency reached 100% for lithium and 92.19% for cobalt at 90 °C within 6 hours. For ternary lithium batteries, the leaching efficiencies of lithium, nickel, manganese and cobalt reached 94.56%, 96.62%, 96.54% and 98.39% at 70 °C, respectively, within 6 hours. We anticipate that this method can provide a green, high efficiency and economic approach for LIB recycling, meeting the exponentially growing demand for LIB productions.

Suggested Citation

  • Huifan Li & Andy Berbille & Xin Zhao & Ziming Wang & Wei Tang & Zhong Lin Wang, 2023. "A contact-electro-catalytic cathode recycling method for spent lithium-ion batteries," Nature Energy, Nature, vol. 8(10), pages 1137-1144, October.
    • Handle: RePEc:nat:natene:v:8:y:2023:i:10:d:10.1038_s41560-023-01348-y
    DOI: 10.1038/s41560-023-01348-y
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    Cited by:

    1. Ziming Wang & Xuanli Dong & Xiao-Fen Li & Yawei Feng & Shunning Li & Wei Tang & Zhong Lin Wang, 2024. "A contact-electro-catalysis process for producing reactive oxygen species by ball milling of triboelectric materials," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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