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Formation and Breakdown of the Solid-electrolyte Interphase in a Bis(fluorosulfonyl)amide-based Ionic Liquid in the Presence of Lithium Ion (Supporting Information)

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posted on 2024-01-25, 04:14 authored by Sho OKAZAKI, Nobuyuki SERIZAWA, Yasushi KATAYAMA

The formation and breakdown of the solid electrolyte interphase (SEI) on a Pt electrode were investigated in 1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl)amide (BMPFSA) containing a high concentration of LiFSA using a ferrocene/ferrocenium couple as a redox probe. The formation of the SEI was confirmed at the potential more negative than −1.1 V vs. Ag|Ag(I). However, the SEI was found to disappear at the open circuit potential. The SEI was suggested to form by the dissolution and/or dispersion of the decomposition products in the electrolyte.

Funding

Japan Science and Technology Agency

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Corresponding author email address

katayama@applc.keio.ac.jp

Copyright

© 2024 The Author(s).

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