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The DOI matches its Crossref record; 61 of the 61 references it cites were found in a registry or an index.

The Effect of Fluoroethylene Carbonate as an Additive on the Solid Electrolyte Interphase on Silicon Lithium-Ion Electrodes

Open access
Schroder, Kjell, Alvarado, Judith, Yersak, Thomas A., Li, Juchuan, Dudney, Nancy, Webb, Lauren J., Meng, Ying Shirley, Stevenson, Keith J.·2015·Chemistry of Materials

Abstract

Fluoroethylene carbonate (FEC) has become a standard electrolyte additive for use with silicon negative electrodes, but how FEC affects solid electrolyte interphase (SEI) formation on the silicon anode’s surface is still not well understood. Herein, SEI formed from LiPF 6 -based carbonate electrolytes, with and without FEC, were investigated on 50 nm thick amorphous silicon thin film electrodes to understand the role of FEC on silicon electrode surface reactions. In contrast to previous work, anhydrous and anoxic techniques were used to prevent air and moisture contamination of prepared SEI films. This allowed for accurate characterization of the SEI structure and composition by X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry depth profiling. These results show that FEC reduction leads to fluoride ion and LiF formation, consistent with previous computational and experimental results. Surprisingly, we also find that these species decrease lithium-ion solubility and increase the reactivity of the silicon surface. We conclude that the effectiveness of FEC at improving the Coulombic efficiency and capacity retention is due to fluoride ion formation from reduction of the electrolyte, which leads to the chemical attack of any silicon-oxide surface passivation layers and the formation of a kinetically stable SEI comprising predominately lithium fluoride and lithium oxide.

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Metadata

Authors
Schroder, K., Alvarado, J., Yersak, T. A., Li, J., Dudney, N., Webb, L. J., Meng, Y. S., & Stevenson, K. J.
Venue
Chemistry of Materials
Published
2015-08-11
Volume
27
Issue
16
Pages
5531-5542
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W2229989501
Cited by
454
References
61
FWCI
20.05
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The Effect of Fluoroethylene Carbonate as an Additive on the Solid Electrolyte Interphase on Silicon Lithium-Ion Electrodes. https://app.cochat.ai/papers/10.1021/acs.chemmater.5b01627
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Schroder, K., Alvarado, J., Yersak, T. A., Li, J., Dudney, N., Webb, L. J., Meng, Y. S., & Stevenson, K. J. (2015). The Effect of Fluoroethylene Carbonate as an Additive on the Solid Electrolyte Interphase on Silicon Lithium-Ion Electrodes. Chemistry of Materials. https://doi.org/10.1021/acs.chemmater.5b01627

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