Photo-accelerated fast charging of lithium-ion batteries

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

Research output: Contribution to journalArticle

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.

Original languageEnglish
Article number4946
JournalNature communications
Volume10
Issue number1
DOIs
Publication statusPublished - Dec 1 2019

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Lithium
charging
electric batteries
lithium
Ions
Light
Electrodes
Cathodes
Charging (batteries)
ions
Bias voltage
flux density
cathodes
recharging
Metals
Electrons
Technology
Equipment and Supplies
induction
Lithium-ion batteries

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Lee, A., Vörös, M., Dose, W. M., Niklas, J., Poluektov, O., Schaller, R. D., ... Johnson, C. S. (2019). Photo-accelerated fast charging of lithium-ion batteries. Nature communications, 10(1), [4946]. https://doi.org/10.1038/s41467-019-12863-6

Photo-accelerated fast charging of lithium-ion batteries. / Lee, Anna; Vörös, Márton; Dose, Wesley M.; Niklas, Jens; Poluektov, Oleg; Schaller, Richard D.; Iddir, Hakim; Maroni, Victor A.; Lee, Eungje; Ingram, Brian; Curtiss, Larry A.; Johnson, Christopher S.

In: Nature communications, Vol. 10, No. 1, 4946, 01.12.2019.

Research output: Contribution to journalArticle

Lee, A, Vörös, M, Dose, WM, Niklas, J, Poluektov, O, Schaller, RD, Iddir, H, Maroni, VA, Lee, E, Ingram, B, Curtiss, LA & Johnson, CS 2019, 'Photo-accelerated fast charging of lithium-ion batteries', Nature communications, vol. 10, no. 1, 4946. https://doi.org/10.1038/s41467-019-12863-6
Lee, Anna ; Vörös, Márton ; Dose, Wesley M. ; Niklas, Jens ; Poluektov, Oleg ; Schaller, Richard D. ; Iddir, Hakim ; Maroni, Victor A. ; Lee, Eungje ; Ingram, Brian ; Curtiss, Larry A. ; Johnson, Christopher S. / Photo-accelerated fast charging of lithium-ion batteries. In: Nature communications. 2019 ; Vol. 10, No. 1.
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