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Electrode/Electrolyte Interphases of Sodium-Ion Batteries

Author

Listed:
  • Tatiana L. Kulova

    (Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect, 31-4, 119071 Moscow, Russia)

  • Alexander M. Skundin

    (Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect, 31-4, 119071 Moscow, Russia)

Abstract

The performance of sodium-ion batteries largely depends on the presence and properties of passive films formed on the electrode/electrolyte interfaces. Passive films on negative electrodes inevitably result from the reduction in electrolyte components (solvent and salt anion). They have the properties of a solid electrolyte with sodium ion conductivity and are insulators in terms of electronic conductivity. Usually, they are called SEI—solid electrolyte interphase. The formation of SEI is associated with the consumption of a certain charge, which is an irreversible capacity. Passive films on the surface of positive electrodes (CEI—cathode electrolyte interphase) arise as a result of electrolyte oxidation. The present review summarizes the literature of the recent 15 years concerning the effects of electrode nature (hard carbon, other carbon materials, various metals, oxides, chalcogenides, etc.), electrolyte composition, and other factors on composition and properties of SEIs in sodium-ion batteries. Literary data on CEIs are reviewed as well, although their volume is inferior to that of data on SEIs.

Suggested Citation

  • Tatiana L. Kulova & Alexander M. Skundin, 2022. "Electrode/Electrolyte Interphases of Sodium-Ion Batteries," Energies, MDPI, vol. 15(22), pages 1-32, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:22:p:8615-:d:975532
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    Cited by:

    1. Hatice Aylin Karahan Toprakci & Ozan Toprakci, 2023. "Recent Advances in New-Generation Electrolytes for Sodium-Ion Batteries," Energies, MDPI, vol. 16(7), pages 1-44, March.

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