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Determination of Sodium Ion Diffusion Coefficient in Tin Sulfide@Carbon Anode Material Using GITT and EIS Techniques
Abstract
The electroanalytical behavior of SnSx (x = 1, 2) encapsulated into a carbon phase was studied using the galvanostatic intermittent titration technique (GITT) and electrochemical impedance spectroscopy (EIS). These techniques are widely utilized in battery systems to investigate the diffusion of alkali metal cations in anode and cathode materials depending on the concentration of ions in the host material. Here, we report different calculation methods showing how the applied model affects the derived diffusion coefficient. The calculated value of the apparent chemical diffusion coefficient of sodium ions ((Formula presented.)) is in the range of 1 × 10−10 to 1 × 10−15 cm2/s depending on the technique, mathematical protocol, geometry of the electrode material, and applied potential.
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ENERGIES
no. 13,
ISSN: 1996-1073 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Nowak A., Rutecki P., Szkoda M., Trzciński K.: Determination of Sodium Ion Diffusion Coefficient in Tin Sulfide@Carbon Anode Material Using GITT and EIS Techniques// ENERGIES -Vol. 13,iss. 17 (2024), s.3233-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/en17133233
- Sources of funding:
-
- IDUB
- Verified by:
- Gdańsk University of Technology
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