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Article Dans Une Revue Batteries & Supercaps Année : 2020

A New Cell Configuration for a More Precise Electrochemical Evaluation of an Artificial Solid‐Electrolyte Interphase

Résumé

The study of an artificial solid electrolyte interphase (SEI) can lead to a misinterpretation of the electrochemical results obtained with the classical cell configuration due to so-called edge effect. A technical solution is presented here that minimizes the edge effect by using a new cell configuration with a polypropylene disc. A new cell configuration allows a simple electrochemical evaluation of an artificial SEI with a more precisely defined effective area and homogeneously distributed current density. The application of such a technical solution manifests itself through better defined deposition and stripping curves in relation to surface electrochemistry and can differ significantly from the results obtained with the classical cell configuration. Finally, a model system - a lithium electrode protected with trimethylolpropane ethoxylate triacrylate polymer was used to evaluate and compare the new cell configuration with the classical two electrode cell configuration.

Domaines

Matériaux Autre
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Dates et versions

hal-03515321 , version 1 (06-01-2022)

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Jernej Bobnar, Alen Vizintin, Gregor Kapun, Christian Njel, Rémi Dedryvère, et al.. A New Cell Configuration for a More Precise Electrochemical Evaluation of an Artificial Solid‐Electrolyte Interphase. Batteries & Supercaps, 2020, 4 (4), pp.623-631. ⟨10.1002/batt.202000255⟩. ⟨hal-03515321⟩
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