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Photo-accelerated fast charging of lithium-ion batteries

Author

Listed:
  • Anna Lee

    (Argonne National Laboratory)

  • Márton Vörös

    (Argonne National Laboratory)

  • Wesley M. Dose

    (Argonne National Laboratory)

  • Jens Niklas

    (Argonne National Laboratory)

  • Oleg Poluektov

    (Argonne National Laboratory)

  • Richard D. Schaller

    (Argonne National Laboratory)

  • Hakim Iddir

    (Argonne National Laboratory)

  • Victor A. Maroni

    (Argonne National Laboratory)

  • Eungje Lee

    (Argonne National Laboratory)

  • Brian Ingram

    (Argonne National Laboratory)

  • Larry A. Curtiss

    (Argonne National Laboratory)

  • Christopher S. Johnson

    (Argonne National Laboratory)

Abstract

Due to their exceptional high energy density, lithium-ion batteries are of central importance in many modern electrical devices. A serious limitation, however, is the slow charging rate used to obtain the full capacity. Thus far, there have been no ways to increase the charging rate without losses in energy density and electrochemical performance. Here we show that the charging rate of a cathode can be dramatically increased via interaction with white light. We find that a direct exposure of light to an operating LiMn2O4 cathode during charging leads to a remarkable lowering of the battery charging time by a factor of two or more. This enhancement is enabled by the induction of a microsecond long-lived charge separated state, consisting of Mn4+ (hole) plus electron. This results in more oxidized metal centers and ejected lithium ions are created under light and with voltage bias. We anticipate that this discovery could pave the way to the development of new fast recharging battery technologies.

Suggested Citation

  • Anna Lee & Márton Vörös & Wesley M. Dose & Jens Niklas & Oleg Poluektov & Richard D. Schaller & Hakim Iddir & Victor A. Maroni & Eungje Lee & Brian Ingram & Larry A. Curtiss & Christopher S. Johnson, 2019. "Photo-accelerated fast charging of lithium-ion batteries," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12863-6
    DOI: 10.1038/s41467-019-12863-6
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    Cited by:

    1. Ahmed Gailani & Maher Al-Greer & Michael Short & Tracey Crosbie & Nashwan Dawood, 2020. "Lifetime Degradation Cost Analysis for Li-Ion Batteries in Capacity Markets using Accurate Physics-Based Models," Energies, MDPI, vol. 13(11), pages 1-21, June.

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