| Autor: |
Ju Eun Son, Joon-Hyuk Yim, Jae-Won Lee |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Electrochemistry Communications, Vol 152, Iss , Pp 107517- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1388-2481 |
| DOI: |
10.1016/j.elecom.2023.107517 |
| Popis: |
Herein, fluorinate silicon monoxide (SiO-F) is prepared by heat treatment of SiO with ammonium bifluoride (NH4HF2) at low temperatures to improve the cycling stability of SiO. The fluorination of SiO is confirmed by X-ray photoelectron spectroscopy (XPS) and Fourier-Transform infrared spectroscopy (FT-IR). The SiO-F exhibits higher initial discharge capacity, rate capability, and cycling stability than untreated SiO (pristine SiO). The superior electrochemical performances of the SiO-F are attributed to the formation of a LiF-rich solid electrolyte interphase (SEI) layer formed by the reaction between Li-ion and F-groups on the surface of SiO during the charge and discharge cycle. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect