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Article dans une revue

Influence of the binder and preparation process on the positive electrode electrochemical response and Li/S system performances

Abstract : In this study, the effect of the binder (PVdF and CMC/NBR) and the preparation process of sulfur electrode ink/slurry on electrochemical performance and cycling behaviour of Li/S cells was investigated. Well-dispersed and homogeneous slurries obtained using high-energy mechanical dispersion (Dispermat®) permit to decrease the impedance response of the electrodes and thus to improve the cycling performances at high C-rates. The main effect of CMC/NBR binder was mostly related to electrode adhesion properties, resulting in better cycle life. A detailed analysis of EIS data gives us an insight into electrode impedance response and their variation depending on the electrode fabrication process and nature/type of a binder.
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https://hal.univ-grenoble-alpes.fr/hal-01883273
Contributeur : Fannie Alloin <>
Soumis le : jeudi 27 septembre 2018 - 22:35:00
Dernière modification le : mardi 6 octobre 2020 - 16:18:02

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S. Waluś, A. Robba, R. Bouchet, C. Barchasz, F. Alloin. Influence of the binder and preparation process on the positive electrode electrochemical response and Li/S system performances. Electrochimica Acta, Elsevier, 2016, 210, pp.492 - 501. ⟨10.1016/j.electacta.2016.05.130⟩. ⟨hal-01883273⟩

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