Electrode–Electrolyte Interface in Li-Ion Batteries: Current Understanding and New Insights
Name
Electrode-Electrolyte with SI.pdf
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7.08 MB
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Adobe PDF
Checksum (MD5)
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Author(s)
Lux, Simon F.
Paschos, Odysseas
Bauer, Christoph
Maglia, Filippo
Lupart, Saskia
Lamp, Peter
Gauthier, Magali Aurelie Marie
Carney, Thomas Joseph
Grimaud, Alexis
Giordano, Livia
Date Issued
October 2015
Journal
The Journal of Physical Chemistry Letters
Publisher
American Chemical Society (ACS)
Citation
Gauthier, Magali, Thomas J. Carney, Alexis Grimaud, Livia Giordano, Nir Pour, Hao-Hsun Chang, David P. Fenning, et al. “Electrode–Electrolyte Interface in Li-Ion Batteries: Current Understanding and New Insights.” The Journal of Physical Chemistry Letters 6, no. 22 (November 19, 2015): 4653–4672.
Version
Author's final manuscript
Abstract
Understanding reactions at the electrode/electrolyte interface (EEI) is essential to developing strategies to enhance cycle life and safety of lithium batteries. Despite research in the past four decades, there is still limited understanding by what means different components are formed at the EEI and how they influence EEI layer properties. We review findings used to establish the well-known mosaic structure model for the EEI (often referred to as solid electrolyte interphase or SEI) on negative electrodes including lithium, graphite, tin, and silicon. Much less understanding exists for EEI layers for positive electrodes. High-capacity Li-rich layered oxides yLi[subscript 2–x]MnO[subscript 3]·(1–y)Li[subscript 1–x]MO[subscript 2], which can generate highly reactive species toward the electrolyte via oxygen anion redox, highlight the critical need to understand reactions with the electrolyte and EEI layers for advanced positive electrodes. Recent advances in in situ characterization of well-defined electrode surfaces can provide mechanistic insights and strategies to tailor EEI layer composition and properties.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Research Laboratory of Electronics
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DOI of Published Version
https://doi.org/10.1021/acs.jpclett.5b01727
