Энергия Связей В Расплавленных Системах М-Al-Zr-O-F (M = Li, Na, K)

The possibility of silicon electrodeposition from the low-melting LiCl-KCl-CsCl-K2SiF6 electrolytes has been studied. The stability of a silicon-containing additive was studied by cyclic voltammetry, and the rate constant of the chemical reaction of SiF4 release at a temperature of 827 K was calculated. It is determined that the constants of velocity values in the melt based on eutectic composition are 2 orders of magnitude higher, which indicates a higher rate of formation of volatile compounds. Cyclic voltammetry was also used to study the electrochemical behavior of K2SiF6 in the melts under study. It was found that the silicon electroreduction at the cathode is not reversible and proceeds in one 4-electron reaction. The diffusion coefficients calculated by the Matsuda-Ayabe equation were 3.28⸱10-5 and 0.72⸱10-5 cm2·s-1 at temperature of 753 and 823 K for each melt, respectively. According to the obtained voltammograms, the parameters for the silicon electrodeposition were selected. At a potential of -0.4 V vs QRE, dendritic silicon deposits were obtained.

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Electrodeposition of Silicon from the Low-Melting LiCl-KCl-CsCl-K₂SiF₆ Electrolytes

Parasotchenko

Pavlenko

Gevel

et al. 2022

J. Electrochem. Soc.

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Энергия Связей В Расплавленных Системах М-Al-Zr-O-F (M = Li, Na, K)

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Electrodeposition of Silicon from the Low-Melting LiCl-KCl-CsCl-K₂SiF₆ Electrolytes

Electrodeposition of Silicon from the Low-Melting LiCl-KCl-CsCl-K₂SiF₆ Electrolytes

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Энергия Связей В Расплавленных Системах М-Al-Zr-O-F (M = Li, Na, K)

Cited by 1 publication

References 0 publications

Electrodeposition of Silicon from the Low-Melting LiCl-KCl-CsCl-K2SiF6 Electrolytes

Electrodeposition of Silicon from the Low-Melting LiCl-KCl-CsCl-K2SiF6 Electrolytes

Contact Info

Product

Resources

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Electrodeposition of Silicon from the Low-Melting LiCl-KCl-CsCl-K₂SiF₆ Electrolytes

Electrodeposition of Silicon from the Low-Melting LiCl-KCl-CsCl-K₂SiF₆ Electrolytes