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Abstract
A comparative investigation on binder induced chemical and morphological evolution of Li4Ti5O12 electrodes was performed via X-ray photoemission spectroscopy, scanning electron microscopy, and electrochemical measurements. Composite electrodes were obtained using three different binders (PAA, PVdF, and CMC) with 80:10:10 ratio of active material:carbon:binder. The electrochemical performances of the electrodes, were found to be intimately correlated with the evolution of the microstructure of the electrodes, probed by XPS and SEM analysis. Our analysis shows that the surface chemistry, thickness of the passivation layers and the morphology of the electrodes are strongly dependent on the type of binders that significantly influence the electrochemical properties of the electrodes. These results point to a key role played by binders in optimization of the battery performance and improve our understanding of the previously observed and unexplained electrochemical properties of these electrodes.
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Authors (10)
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Javad Seyed Rezvani dr
- Università di Camerino Physics Division
-
Marta Pasqualini
- Università di Camerino Chemistry Division
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Roberto Gunnella
- Università di Camerino Physics Division
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Agnese Birrozzi dr
- Università di Camerino Chemistry Division
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Marco Minicucci
- Università di Camerino Physics Division
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Hanna Rajantie
- Johnson Matthey Technology Centre, Reading
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Mark P. Copley
- Johnson Matthey Technology Centre, Reading
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Francesco Nobili dr
- Università di Camerino Chemistry Division
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Andrea DiCicco prof.
- Università di Camerino Physics Division
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
APPLIED SURFACE SCIENCE
no. 435,
pages 1029 - 1036,
ISSN: 0169-4332 - Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Rezvani J., Pasqualini M., Witkowska A., Gunnella R., Birrozzi A., Minicucci M., Rajantie H., Copley M., Nobili F., Dicicco A.: Binder-induced surface structure evolution effects on Li-ion battery performance// APPLIED SURFACE SCIENCE. -Vol. 435, (2018), s.1029-1036
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.apsusc.2017.10.195
- Verified by:
- Gdańsk University of Technology
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